Avenel Iselin Medical Group 2026: Portal, Doctors & Hours

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Iselin, New Jersey · Seven-day primary and specialty care

Plan Your Avenel Iselin Medical Group Visit From Check-In to Follow-Up

Avenel Iselin Medical Group is a long-established Middlesex County practice offering family medicine, internal medicine and multiple specialties from one Iselin campus.

This guide brings the practical patient information together: office and laboratory hours, doctors, appointment routes, telemedicine, mobile pre-check, insurance, billing, vaccinations, specialist preparation, records questions and what to do when a portal or payment does not work.

Call 732-404-1580 Open patient portal Choose your care route
Emergency warning: Call 911 for chest pain, severe breathing difficulty, stroke warning signs, uncontrolled bleeding, loss of consciousness, a severe allergic reaction or another potentially life-threatening condition. Do not wait for a portal message or routine callback.
Correct organization check: This guide covers Avenel Iselin Medical Group, LLC at 400 Gill Lane in Iselin, New Jersey. It is the practice using aimgdocs.com, telephone 732-404-1580 and fax 732-404-1594.
One main campus

400 Gill Lane, Iselin, NJ 08830.

Seven-day access

Extended weekday, Saturday and Sunday office hours.

Onsite blood draws

Monday-Friday, 8:45 a.m.-2:45 p.m.

Billing support

732-404-1590

Parking

Free onsite patient parking lot.

Start with the correct department

Which AIMG appointment should you request?

PRIMARY CARE Family or internal medicine

Start here for routine checkups, physicals, preventive care, stable symptoms, diabetes, medication monitoring, vaccinations and specialist coordination.

Ask for: a new-patient, annual physical, Medicare wellness, sick, follow-up, sports physical or work physical appointment.
SPECIALTY CARE A focused medical condition

Request the appropriate specialist for heart, digestive, kidney, nerve, muscle, spine, foot, surgical or behavioral-health needs.

Confirm first: referral, prior authorization, provider schedule, records and whether diagnostic testing is available onsite.
PROMPT OR AFTER-HOURS HELP A concern that should not wait

Call the main office for scheduling guidance. AIMG advertises extended hours, seven-day appointments and access to a 24/7 on-call doctor.

The on-call service is not a substitute for 911 or an emergency department when symptoms may be dangerous.
Best routing sentence: Tell the scheduler the patient’s age, main symptom or service, when it started, whether it is worsening and which provider the patient normally sees.

Go directly to the patient task you need

The important details are explained on this page. Official systems are mainly used for the final live appointment request, portal login or payment.

Office, hours and direct contacts

Avenel Iselin Medical Group location information

Main office
Avenel Iselin Medical Group, LLC
400 Gill Lane
Iselin, NJ 08830

Phone: 732-404-1580

Fax: 732-404-1594

Published main-office hours

Monday-Thursday: 9 a.m.-9 p.m.

Friday-Saturday: 9 a.m.-6 p.m.

Sunday: 9 a.m.-2 p.m.

Which number or department should you use?
Need Contact What to have ready
Appointment or clinical office 732-404-1580 Patient name, date of birth, provider, symptoms, insurance and preferred day.
Main-office fax 732-404-1594 Recipient name and department. Confirm before sending sensitive records.
Billing department 732-404-1590 Statement, service date, patient account and insurance explanation of benefits.
Billing fax 732-404-1595 Use only after billing confirms what document should be faxed.
Emergency 911 Location, symptoms, age and immediate safety information.

Holiday closures

AIMG publishes closures for New Year’s Day, Easter Sunday, Memorial Day, Independence Day, Labor Day, Thanksgiving and Christmas Day. Christmas Eve and New Year’s Eve are listed with reduced hours.

Check before a holiday visit. Reduced-hour schedules may change by year. Call the main office before traveling on a holiday weekend or the day before a major holiday.
Sunday-hour discrepancy: The current home, contact and patient-resource pages list Sunday from 9 a.m. to 2 p.m. An older behavioral-health footer displays a different Sunday schedule. Use the main-office schedule and call before travel.
Appointment workflow

How to schedule the correct visit without being rerouted

Identify the visit purpose Decide whether the patient needs a routine physical, Medicare wellness visit, sick appointment, follow-up, vaccination, laboratory work or specialist consultation.
Call the main scheduling number Use 732-404-1580. State the department or provider when known.
Give a brief symptom summary Explain the main concern, when it started and whether it is worsening. This helps staff choose the appointment type and urgency.
Verify provider availability The practice is open seven days, but every doctor and specialist may not work every day or during every extended-hour period.
Confirm insurance and referral rules Read the complete insurance product and network. Ask whether a referral or prior authorization is required for specialty care or testing.
Ask whether laboratory work is planned The onsite blood-draw schedule ends earlier than the medical office. Confirm fasting instructions and whether the lab accepts the order.
Ask about telemedicine When travel is difficult, ask whether the concern can be evaluated virtually or requires examination, testing or imaging.
Save the complete confirmation Record the provider, date, arrival time, visit type, fasting instructions, payment and documents required.
Appointment call script
“I need a [new-patient, physical, sick, follow-up or specialist] appointment for [main reason]. The patient is [age] and has [insurance plan]. Which provider is appropriate, is a referral required, can this be virtual, and should we complete laboratory work before or after the visit?”
Current official provider directory

Doctors and clinical providers listed by AIMG

Provider directory shown on the official AIMG website
Provider Department Common reason to request this department
Marc Mayer, DO Family medicine Whole-family primary care, preventive visits and chronic-condition coordination.
Mitchell Mayer, DO Family medicine Family primary care, routine and continuing medical needs.
Neil Perilstein, MD Family medicine Children, teenagers, adults and older-adult family care.
Alicia Lubin-Baskin, DO Family medicine Preventive, routine and ongoing family care.
Jo Ann Colbert, PA-C Family medicine Primary-care evaluation and follow-up under the medical-group care team.
Kristina Mancini, PA-C Family medicine Primary-care appointments and continuing health management.
Swati Gupta, MD Internal medicine Adult primary care and chronic-condition management.
Shay Ovshayev, DO Internal medicine Preventive and lifestyle medicine, chronic disease and adult care.
Laith Qumei, MD Internal medicine Adult wellness, screening, chronic conditions, sick visits and follow-up care.
Rahul Gokhroo, MD Interventional cardiology Coronary or peripheral disease, heart testing and cardiovascular treatment.
Mayank Patel, MD Gastroenterology Digestive, liver, gallbladder, bowel and gastrointestinal concerns.
Robert Czyzewski, MD Nephrology and hospital medicine Kidney disease, nephropathy, hypertension and kidney-related conditions.
Sang Song, DO Physical medicine and rehabilitation Spine, nerve, muscle, joint, injury and rehabilitation concerns.
Aqsa Siddiqui, DPM Podiatry Foot and ankle pain, injuries, diabetic foot care and surgical evaluation.
David Pertsemlidis, MD, FACS General surgery Gallbladder, hernia, gastrointestinal and other general-surgical consultations.
Esther Pollack, LCSW Behavioral health Counseling for anxiety, depression, grief, family conflict and life transitions.
Provider schedules change. A name appearing in the directory does not guarantee availability on every day that the building is open. Confirm new-patient status and appointment days by calling 732-404-1580.
Check the live provider directory
Primary and specialty care

What each AIMG department treats

Service, common needs and useful preparation
Department Published areas of care What to prepare
Family healthcare Checkups, physicals, diabetes care, injuries, vaccines, spirometry and nebulizer treatments. Health history, medications, allergies, home readings and reason for visit.
Internal medicine Adult preventive care, screening, chronic conditions, sick care and follow-up. Medication bottles, prior laboratory results and specialist records.
Cardiology Heart and vascular disease, coronary conditions, rhythm concerns and cardiac testing. Medication list, prior ECGs, imaging, blood-pressure log and referral.
Gastroenterology Swallowing difficulty, reflux, constipation, diarrhea, inflammatory bowel disease and digestive conditions. Symptom and food history, prior endoscopy records, medicines and test results.
Nephrology Chronic kidney disease, kidney stones, diabetic nephropathy, anemia and difficult hypertension. Kidney-function results, urine tests, blood-pressure readings and medicine list.
Physical medicine and rehabilitation Back and neck pain, herniated discs, nerve damage, arthritis and sports or spine injury. Imaging, injury history, therapy records and questions about EMG or nerve-conduction testing.
Podiatry Foot and ankle injuries, heel pain, bunions, gait issues, arthritis and diabetic foot concerns. Shoes normally worn, symptom history, diabetes information and previous imaging.
General surgery Gallbladder, appendix, hernia and gastrointestinal or endocrine surgical conditions. Imaging, referral, medical clearance information and medication or blood-thinner list.
Behavioral health Anxiety, depression, grief, family conflict, anger, addiction, trauma and life transitions. Treatment goals, prior therapy, medicines, safety concerns and insurance authorization.
Specialist evaluation does not always mean onsite testing or treatment. Ask whether procedures, imaging, surgery or advanced testing occur at Gill Lane or at an affiliated hospital or outside facility.
Routine, sports and employment care

How to prepare for an AIMG physical examination

Routine physical

AIMG describes review of personal and family history, allergies, vaccination history, lifestyle, vital signs, physical examination and possible laboratory or screening tests.

Sports physical

The visit may include height, weight, blood pressure, pulse, vision, heart, lungs, ears, nose, throat, strength, flexibility, posture and injury history.

Work physical

Depending on employer requirements, the evaluation may involve history, vital signs, vision, hearing, physical examination and job-specific screening.

Bring the actual school, sports or employer form
Complete the patient portion before arrival
Bring glasses, contacts or hearing devices
List current injuries and restrictions
Bring vaccination documentation
Ask whether fasting is required
Confirm whether testing costs are separate
Ask when the completed form will be ready
Preventive care and problem care can be billed differently. Discussing a new condition or changing treatment during a routine physical may create an additional problem-oriented service under some insurance plans.
Medicare and healthy aging

What AIMG wellness visits can include

M
Medicare wellness review

Medical and family history, current clinicians, prescriptions, routine measurements and personalized health advice.

ADL
Daily-living assessment

Eating, personal hygiene, mobility, dressing and toileting may be reviewed when independence is a concern.

I
Independent-living skills

Shopping, meals, housework, money, transport, medicines and communication can also be discussed.

F
Fall-risk assessment

Prior falls, balance, strength, gait, mobility and practical fall-prevention strategies may be evaluated.

Rx
Medication review

Bring a complete list or the actual medicine containers, including supplements and non-prescription products.

AC
Advance-care planning

The clinician can discuss care preferences and the role of an advance directive.

Medicare wellness is not always the same as a complete head-to-toe physical. Ask what the scheduled visit includes and how a separate symptom evaluation may be billed.
Immunization services

Vaccinations listed by Avenel Iselin Medical Group

Influenza

Seasonal flu vaccination.

MMR

Measles, mumps and rubella.

Tdap

Tetanus, diphtheria and pertussis.

HPV

Human papillomavirus vaccination.

Meningitis

Meningococcal vaccine options.

Meningitis B

Serogroup B meningococcal vaccine.

Hepatitis B

Hepatitis B immunization.

Pneumococcal

Prevnar and Pneumovax are listed.

Tetanus

Tetanus protection when clinically appropriate.

PPD testing

Tuberculosis skin testing.

COVID-19

Current product availability should be confirmed.

Travel vaccines

Travel-vaccine questions are routed through RWJBarnabas Health.

Ask whether the vaccine is currently in stock
Bring previous immunization records
Verify age and dose eligibility
Report allergies and previous reactions
Confirm insurance coverage
Ask whether an office visit charge applies
Travel immunization contact: AIMG directs travel-vaccine questions to RWJBarnabas Health at 973-926-2491. Call early because some travel vaccines require more than one dose or time to become effective.
Vaccine recommendations and product availability change. Confirm the current vaccine, dose, age requirement, schedule and insurance coverage before traveling to the office.
Atlantic Diagnostic Laboratory

How onsite blood draws work at AIMG

Published blood-draw hours

Monday through Friday from 8:45 a.m. to 2:45 p.m.

Location

Onsite access is provided at the Gill Lane medical-group campus.

Lab provider

Atlantic Diagnostic Laboratory is identified as the onsite laboratory service.

Confirm that an order exists Ask whether the clinician entered or supplied the laboratory order before arriving.
Verify laboratory insurance participation The medical office and laboratory may have separate network contracts.
Ask about fasting Follow the specific food, drink and medication instructions given for the ordered tests.
Arrive before the cutoff The laboratory closes much earlier than the medical office, particularly on extended-hour days.
Bring identification and insurance The laboratory may need to verify patient identity and billing information separately.
Ask where results will appear Confirm whether results will be released to the Aprima portal, discussed by telephone or reviewed at follow-up.
Do not assume every test is collected onsite. Specialized studies, timed collections or insurance-required laboratories may need a different facility.
Virtual appointments

How to prepare for AIMG telemedicine

AIMG advertises virtual appointments seven days per week. Whether a specific visit can remain virtual depends on the symptoms, provider, required examination and insurance rules.

Confirm that the visit is booked as telemedicine
Ask how the secure link will arrive
Test camera, microphone and internet
Choose a private, well-lit room
Prepare medications and home readings
Have the pharmacy name and address ready
Confirm copay and insurance coverage
Know the in-person backup plan
A simple follow-up is needed Ask whether symptoms, readings and medications can be reviewed virtually.
A rash or visible concern is involved Use strong lighting and ask whether photographs should be uploaded before the visit.
Testing is likely Ask whether laboratory work should be completed before or after the virtual appointment.
Severe symptoms develop Do not remain in the virtual queue. Call 911 or use emergency care when delay may be dangerous.
Mobile pre-check

Complete eligible check-in steps from your car

AIMG states that patients who are set up through the office may use a smartphone for mobile pre-check before entering.

ID
Upload identification

Submit the requested image of a driver’s license or other accepted identification.

IN
Upload insurance

Provide clear images of the front and back of the current insurance card.

$
Make a copay

Eligible patients can pay the requested copay through the mobile pre-check workflow.

Mobile pre-check does not guarantee that every registration step is complete. Bring the original identification and insurance cards in case staff need to verify them.
Parking advantage: AIMG publishes that its onsite patient parking lot is free. Confirm where to wait when completing mobile check-in from the car.
Aprima patient portal

What is publicly confirmed about the AIMG portal

Confirmed by the practice
  • The official website links to an Aprima patient portal.
  • Patients can submit eligible appointment requests through the portal.
  • The portal is separate from the online-payment link.
  • The portal should be used for non-emergency patient activity.
Not clearly published
  • Exact first-time registration steps
  • Invitation expiration period
  • Password-reset procedure
  • Proxy-access rules
  • Which results or records appear automatically
Enter through the official AIMG link Avoid using a portal link from an unrelated Iselin practice with a similar name.
Confirm the practice name Verify Avenel Iselin Medical Group before entering health information.
Use the email connected to the chart When access fails, the office may need to correct the email or mobile number associated with the patient.
Call rather than creating a duplicate account Use 732-404-1580 when enrollment, identity verification or password recovery does not work.
Do not use the portal for emergencies. Portal requests may not be reviewed immediately. Use the telephone for time-sensitive concerns and call 911 for dangerous symptoms.
Portal-help call script
“I am an AIMG patient and cannot access the Aprima portal. Please verify the email and mobile number connected to my chart, whether my account is activated and whether a new invitation or password-reset step is required.”
Open the official portal destination Call for portal assistance
Published participating carriers

Insurance plans listed by Avenel Iselin Medical Group

Aetna

Verify the exact product and network.

AmeriHealth

Confirm provider and location participation.

Beacon Health Options

May relate to behavioral-health benefits.

Cigna

Verify medical and specialty participation.

Cigna Behavioral Health

Confirm counseling benefits and authorization.

Clover Health

Check the current Medicare plan network.

CHN

Consumer Health Network is listed.

Empire BCBS New York

Verify New Jersey access under the specific plan.

First Health

Confirm the current network product.

Horizon BCBSNJ

Verify the specific Horizon network.

Humana Military

Ask about referral and authorization rules.

MagnaCare / Brighton

Confirm the employer or network arrangement.

Magellan

May apply to behavioral-health services.

OptumHealth

Verify the covered department and provider.

QualCare

Confirm location and service participation.

WellCare

Verify the exact plan before scheduling.

A carrier name is not a coverage guarantee. Verify the specific doctor, department, Gill Lane location, service and plan network. Cardiology, behavioral health, laboratory work and surgery can have different rules.
Read the complete insurance product Use every network or product name printed on the card.
Identify the provider and department Ask about the specific family physician, internist, specialist or therapist.
Verify the onsite laboratory separately Atlantic Diagnostic Laboratory may have a separate insurance contract from AIMG.
Ask about referral and authorization Specialist care, procedures and advanced testing may require approval.
Record the verification Save the date, representative’s name and confirmation number.
Insurance call script
“My plan is [complete product and network]. I am seeing [provider] at Avenel Iselin Medical Group, 400 Gill Lane, for [service]. Is the provider, location and service in network? Do I need a referral or authorization, and is Atlantic Diagnostic Laboratory also in network?”
Billing and online payment

How to question or pay an AIMG balance

Billing department

732-404-1590

Monday-Friday, 8:30 a.m.-4:30 p.m.

Fax: 732-404-1595

Accepted payment methods

Major credit cards, debit cards, checks, money orders and cash are listed.

Self-pay is available.

Identify the billing source Determine whether the charge is from AIMG, Atlantic Diagnostic Laboratory, an affiliated hospital or another specialist.
Compare the service date Match the statement with the appointment, test or procedure.
Review the explanation of benefits The insurer’s explanation is not a bill, but it shows how the claim was processed.
Question discrepancies Ask billing to explain the charge, insurance payment, adjustment and patient responsibility.
Use the secure payment link Enter the patient and account details requested by the official BalanceCollect system.
Save payment proof Keep the date, amount, confirmation number and statement.
Billing-question script
“I am calling about an AIMG statement for service date [date]. My insurance explanation shows [status], while the statement shows [balance]. Please explain the charge, insurance processing, adjustment and amount I am responsible for.”
Financial-assistance limitation: The AIMG website does not publish a dedicated medical-group financial-assistance application or eligibility table. Call billing before delaying care or ignoring a balance and ask about self-pay pricing, payment arrangements or the correct RWJBarnabas resource.
Open secure online payment Call billing
Medical records and outside documents

How to request records when no public AIMG form is posted

The AIMG website does not clearly publish a downloadable medical-record release form, processing timeframe, copying fee or dedicated records-office telephone number.

Call the main office Ask which authorization form AIMG requires and whether it can be sent through the portal, fax, mail or in person.
Specify the record needed Request visit notes, laboratory results, immunizations, medication history, specialist notes, billing records or a complete chart.
Add a date range A focused period can help the office locate and send the relevant information.
Name the recipient completely Include the person or organization, address, secure fax and department.
Ask about identity requirements Confirm whether photo identification, legal-representative documents or another authorization is required.
Ask about processing and fees Obtain the expected completion time and any copying, media or delivery charge.
Confirm receipt Contact the receiving specialist or organization before the deadline.
Hospital records may require a separate request. Records created during treatment at RWJ University Hospital Rahway, Robert Wood Johnson University Hospital, Newark Beth Israel or another facility may not be part of the AIMG office chart.
Records-request script
“I need [record type] from [date range] sent to [recipient]. Which authorization form should I complete, where should I send it, what identification is required, how long will processing take and will there be a fee?”
After the visit

What to do about results, refills and specialist referrals

A laboratory result is missing Confirm whether the sample was collected by Atlantic Diagnostic Laboratory, whether processing is complete and how AIMG releases results.
A result is marked abnormal Do not diagnose yourself from a portal flag. Ask the ordering provider to explain its meaning and next step.
You need a routine refill Submit the request before the medicine runs out and provide the exact medicine, dose and pharmacy.
The refill has not reached the pharmacy Verify the pharmacy location and ask whether an appointment, laboratory test or authorization is required.
A specialist referral is delayed Ask which specialist received it, whether records were included and whether insurance approval is pending.
Symptoms are worsening Call the office for clinical routing. Use urgent or emergency care when the condition cannot safely wait.
You were admitted to a hospital Schedule follow-up and bring the discharge summary, new medications and specialist instructions.
You need a work or school note Tell the office exactly what the document must state and when it is due.
Result follow-up script
“I completed [test] on [date] for [provider]. Can you confirm whether the result is complete, whether the provider reviewed it, how I should receive the interpretation and whether I need a follow-up appointment?”
Iselin patient shortcuts

Practical tips that can prevent a second visit

01
Separate office and lab hours

The medical office stays open much later than the published blood-draw schedule.

02
Call before Sunday travel

Use the current main-office hours and verify provider availability.

03
Use free onsite parking

Ask where to wait when completing mobile pre-check from the car.

04
Bring original cards

Mobile uploads are helpful, but the office may still need physical identification and insurance cards.

05
Verify the lab separately

AIMG and Atlantic Diagnostic Laboratory can have different insurance participation.

06
Ask where a procedure happens

Advanced testing or surgery may occur at an affiliated hospital instead of Gill Lane.

07
Bring every outside record

Specialists can make a stronger plan when previous imaging and laboratory results are available.

08
Plan for area traffic

Check the current route and leave enough time for Gill Lane arrival, parking and registration.

09
Call billing early

Ask about self-pay or payment options before an unpaid statement becomes harder to resolve.

Directions and arrival

Map to Avenel Iselin Medical Group

Avenel Iselin Medical Group, LLC
400 Gill Lane
Iselin, NJ 08830
732-404-1580
Arrival advantage: The practice publishes that free onsite parking is available. Save the office telephone number in case mobile pre-check or building entry instructions are unclear.
Patient questions answered

Avenel Iselin Medical Group frequently asked questions

Where is Avenel Iselin Medical Group located?

The practice is at 400 Gill Lane, Iselin, New Jersey 08830. Free onsite patient parking is listed.

What are the office hours?

The current main schedule is Monday through Thursday from 9 a.m. to 9 p.m., Friday and Saturday from 9 a.m. to 6 p.m., and Sunday from 9 a.m. to 2 p.m.

How do I schedule an appointment?

Call 732-404-1580. Established patients can also use the official Aprima patient-portal link for eligible appointment requests.

Does AIMG offer telemedicine?

Yes. The practice advertises virtual and in-office appointments seven days per week. Call to confirm that the specific concern and provider are suitable for telemedicine.

Which medical departments are available?

Services include family medicine, internal medicine, vaccinations, wellness care, cardiology, gastroenterology, nephrology, physical medicine and rehabilitation, podiatry, general surgery and behavioral health.

Is there an onsite laboratory?

Yes. Atlantic Diagnostic Laboratory provides onsite laboratory access. Published blood-draw hours are Monday through Friday from 8:45 a.m. to 2:45 p.m.

Which insurance plans are accepted?

AIMG lists Aetna, AmeriHealth, Cigna, Clover Health, Horizon BCBSNJ, First Health, QualCare, WellCare and other network or behavioral-health plans. Verify the exact product before care.

How do I contact billing?

Call 732-404-1590 Monday through Friday from 8:30 a.m. to 4:30 p.m. The billing fax is 732-404-1595.

How do I enter the patient portal?

Use the Aprima portal linked from the official AIMG website. Call 732-404-1580 if enrollment, identity verification or password recovery fails.

Is AIMG part of RWJBarnabas Health?

Yes. The practice states that it is part of RWJBarnabas Health and has access to resources connected with major affiliated New Jersey hospitals.

Final live actions

Official AIMG patient tools

The major office, care, insurance, laboratory and billing details are explained above. Use the official systems only when you are ready to schedule, enter the portal, pay or verify a live provider detail.

Official AIMG website Current provider directory Patient resources Patient portal Online payment Contact and directions Call scheduling Call billing
Independent patient-information notice:

USMedicalGroup.org is not Avenel Iselin Medical Group, Atlantic Diagnostic Laboratory or RWJBarnabas Health. It cannot diagnose a condition, schedule care, access a portal, guarantee insurance coverage, process payment or release medical records.

Provider schedules, insurance contracts, vaccine supplies, office hours, laboratory availability and patient procedures can change. Confirm time-sensitive information directly with AIMG.

This article provides general educational information and does not replace professional medical advice. Call 911 for a life-threatening emergency.

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