Center City Philadelphia patient guide · Updated August 2026
Navigate Stoll Medical Group’s Portal, Doctors and Six Specialty Departments
Advocare Stoll Medical Group is a multispecialty practice in Philadelphia offering primary care alongside dermatology, orthopedics, allergy and immunology, gastroenterology, and neurology.
The most important first step is choosing the correct department. A primary-care physical, suspicious skin lesion, sports injury, food-allergy evaluation, digestive problem and neurologic concern require different providers, preparation and insurance checks—even when they share the same office telephone number.
Medical emergency: Call 911 for severe chest pain, stroke warning signs, major breathing difficulty, uncontrolled bleeding, seizure, loss of consciousness, serious trauma or another potentially life-threatening condition.
Correct organization: The current name is Advocare Stoll Medical Group. The Philadelphia office is at 1528 Walnut Street, Suite 950. A second office is at 216 Mall Boulevard, Suite 200, King of Prussia.
Philadelphia office
1528 Walnut Street, Suite 950.
Main telephone
Weekday access
Open until 7:30 p.m. Monday–Thursday.
Portal system
eClinicalWorks patient portal and Healow app.
Departments
Primary care plus five specialty divisions.
Which Stoll Medical Group service should you choose?
PRIMARY CARE
Routine, preventive or ongoing medical care
Begin with primary care for annual examinations, same-day illness appointments, chronic-disease management, vaccines, medication monitoring, school or work forms and most referrals.
Examples: physicals, diabetes, hypertension, high cholesterol, asthma, arthritis, travel health and new symptoms needing an initial evaluation.
STOLL SPECIALTY DEPARTMENT
The problem fits a named specialty
Schedule directly with the appropriate Stoll department when permitted by insurance and the office.
Options include dermatology, orthopedics, allergy/immunology, gastroenterology and neurology.
911 OR EMERGENCY DEPARTMENT
Delay could threaten life or permanent function
Do not wait for a portal reply, office opening, urgent appointment or after-hours callback during a clear emergency.
Call 911 for severe breathing trouble, stroke signs, serious injury, unconsciousness or uncontrolled bleeding.
Appointment-only practice: Stoll provides same-day sick and urgent-care appointments, but its official FAQ states that all office visits are scheduled. Call before arriving rather than treating the office as a walk-in urgent-care center.
Stoll Medical Group Philadelphia and King of Prussia locations
Philadelphia Office
1528 Walnut Street, Suite 950
Philadelphia, PA 19102
Philadelphia, PA 19102
Fax: 267-273-1193
Philadelphia office hours
Monday–Thursday: 8:30 a.m.–7:30 p.m.
Friday: 8:30 a.m.–4:30 p.m.
Saturday–Sunday: Closed
King of Prussia Office
216 Mall Boulevard, Suite 200
King of Prussia, PA 19406
King of Prussia, PA 19406
Fax: 267-273-1193
King of Prussia hours
The current location page does not publish a complete office schedule.
Call before traveling and confirm the provider, department and suite.
Protect private information: The practice lists smginfo@advocaredoctors.com for general contact but specifically instructs patients not to email personal health information. Use the secure portal or telephone instead.
Center City arrival tip: Allow extra time for traffic, parking, building entry and the elevator to Suite 950. Save the complete suite number rather than entering only “1528 Walnut Street” into your trip plan.
How to become a Stoll Medical Group patient
Choose primary care or a specialty
State whether you need a regular PCP, skin care, orthopedic care, allergy evaluation, digestive care or neurologic care.
Verify the exact insurance product
Give the full plan and network name shown on the card, not only the insurance company.
Call 267-273-1196
Ask which provider is accepting new patients at the Philadelphia office and whether online booking is available.
Select Stoll as PCP when required
Keystone Health Plan East and other HMO products may require an official PCP assignment before care.
Complete the patient forms
Use the adult, child or family registration packet and annual consent documents applicable to the patient.
Transfer important records
Send current medication history, recent laboratory results, imaging, vaccine history and specialist notes.
Activate portal access
Ask the office to connect the patient with Advocare’s eClinicalWorks and Healow system.
New-patient call script
“I would like to become a new patient at Stoll Medical Group’s Philadelphia office. I need [primary care or specialty]. My insurance is [complete product name]. Which provider is accepting patients, does my plan require a referral or PCP assignment, and which forms and records should I prepare?”
Stoll Medical Group doctors and departments
Provider assignments and new-patient availability can change. The following table organizes clinicians shown on current official provider and department pages.
| Department | Providers shown by Stoll | Typical reasons for care | Before scheduling |
|---|---|---|---|
| Primary Care | Steven Stoll, MD; Jessica DeSalvo, DO; Emily Friedman, MD; Joel Goldshore, MD; Camron Daghigh, DO; Vanessa Valensi Stoloff, MD; Melissa Kenig, DO; and advanced practice clinicians. | Physicals, illness, chronic disease, preventive screening, prescriptions and referrals. | Confirm the clinician’s active location and new-patient status. |
| Dermatology | Naeha Gupta, DO and Alexander Cartron, MD. | Acne, eczema, psoriasis, rashes, hair loss, nail disease, moles and skin cancer evaluation. | Ask whether the appointment is medical, procedural or cosmetic. |
| Orthopedics | Adam Lyons, MD and Michael Quinn, PA-C. | Back, neck, shoulder, hip, knee, ankle and elbow pain, concussion and osteoarthritis. | Ask about workers’ compensation, outside imaging and injection coverage. |
| Allergy, Asthma and Immunology | Matthew Fogg, MD and Nicole Wolfset, MD. | Food allergy, asthma, rhinitis, eczema, hives, drug allergy and immune-system disorders. | Ask whether antihistamines must be stopped before testing. |
| Gastroenterology | Justin DeRosa, DO and Shannon Mohollen, PA-C. | Reflux, abdominal pain, bowel problems, liver disease, colonoscopy and endoscopy planning. | Confirm referral, procedure facility and preparation requirements. |
| Neurology | Sharon Stoll, DO. | Migraine, multiple sclerosis, neuroimmune disease, neuropathy, concussion and neuromuscular problems. | Bring prior MRI reports, neurologic testing and treatment history. |
Directory difference: A provider may appear on the main provider page before being added to an individual department page. Confirm department, office and booking availability by telephone.
How to schedule and keep a Stoll Medical Group appointment
Choose the correct department
Tell staff whether the appointment is primary care, dermatology, orthopedic medicine, allergy, gastroenterology or neurology.
Call or use an official booking button
Call 267-273-1196. Some individual provider profiles also display online booking.
Describe the visit accurately
A physical, same-day illness, new specialty consultation, procedure and follow-up require different appointment lengths.
Confirm Philadelphia or King of Prussia
Repeat the complete address and suite before ending the scheduling call.
Ask about referral and authorization
Specialty services, procedures, testing and injections may require approval.
Arrive 10–15 minutes early
Use this time for registration, insurance verification and forms.
Call when running late
Patients more than 15 minutes late may be worked into the schedule, offered another provider or asked to reschedule.
Appointment call script
“I need an appointment with the [department] for [brief reason]. The problem began on [date]. My insurance is [complete product]. Please confirm the provider, office, suite, appointment type, referral requirements and anything I must stop, bring or complete beforehand.”
What to bring to Stoll Medical Group Philadelphia
Government-issued photo identification
Current insurance card
Secondary insurance card
Medication and supplement list
Medication doses and schedule
Allergies and previous reactions
Preferred pharmacy information
Referral or authorization details
Recent laboratory results
Imaging reports or image discs
Specialist and hospital records
Completed registration forms
Forms not completed? The practice asks patients to arrive 15 minutes early when paperwork was not filled out beforehand.
Insurance cannot be verified: Stoll states that patients may be asked to pay in full when current coverage information cannot be confirmed.
What the Stoll Medical Group patient portal can do
Manage eligible appointments
Request, review or manage appointments when the function is enabled for the provider.
View available results
Review laboratory and other results released into the electronic record.
Request prescription renewals
Send eligible routine refill requests to the connected care team.
Send secure messages
Communicate about non-emergency clinical and administrative questions.
Review health information
Access available visit and medical information from the patient record.
Prepare for telehealth
Advocare publishes Healow and Microsoft Teams televisit instructions for eligible visits.
Portal access steps
Open Advocare’s official portal page
Use the Stoll website or Advocare patient-resource page rather than an advertisement or unrelated Healow listing.
Confirm your identity
Enter information that exactly matches the Stoll patient record.
Connect the correct practice
Verify that Advocare Stoll Medical Group and the correct patient name appear.
Use the Healow app when preferred
Follow Advocare’s enrollment instructions to link the mobile application.
Call when registration fails
The Philadelphia office can verify the patient’s email, telephone number and portal status.
Never send emergency symptoms through the portal. Portal messages may not be read immediately. Call the office or 911 based on the seriousness of the condition.
What to do when Healow or the Advocare portal does not work
The account cannot find Stoll Medical Group
Begin again from the official Stoll or Advocare portal link and confirm the practice connection.
The identity information does not match
Call the office to verify the legal name, birth date, email, telephone number and ZIP code in the chart.
A result is not visible
The test may still be processing or awaiting release by the ordering clinician.
A result appears abnormal
Do not diagnose yourself from an automatic flag. Contact the ordering department for interpretation.
A message has no response
Call 267-273-1196 when the issue is worsening, urgent or cannot safely wait.
The refill request is pending
Allow two to three business days, or three to five days when insurance authorization is needed.
You need another adult’s information
Use approved proxy access rather than sharing passwords.
You need a complete legal record
Submit a Sharecare medical-record request because portal information may not include every document.
Primary care at Stoll Medical Group Philadelphia
| Service area | Examples | What to prepare |
|---|---|---|
| Preventive care | Annual and executive-level physicals, immunizations and routine health assessment. | Previous screening dates, family history and vaccine records. |
| Chronic disease | Diabetes, hypertension, high cholesterol, asthma, pulmonary disease and arthritis. | Home readings, medication list and specialist reports. |
| Cardiovascular and bone health | Cardiovascular assessment, electrocardiograms and bone-health evaluation. | Symptoms, previous tests and insurance authorization questions. |
| Lung testing | Spirometry and pulmonary-function evaluation. | Ask whether inhalers or other medicines must be held before testing. |
| Forms and clearances | School physicals, work physicals and travel-related services. | Bring the complete form, deadline and vaccine requirements. |
| Same-day care | Urgent-care appointments for appropriate non-emergency problems. | Call first and describe symptoms accurately. |
Preventive versus problem billing: A physical focuses on preventive care. Evaluation of new symptoms or active medical problems during the same visit may create an additional bill under insurance rules.
Stoll Medical Group dermatology services
Inflammatory skin conditions
- Acne and rosacea
- Eczema and dry skin
- Psoriasis
- Hives and contact reactions
- Vitiligo
Growths and cancer evaluation
- Moles and changing lesions
- Actinic keratosis
- Basal cell cancer
- Melanoma
- Warts and molluscum
Hair, nail and cosmetic concerns
- Hair loss and alopecia
- Nail fungus
- Melasma and brown spots
- Keloids
- Excessive sweating
Photograph the change over time
List treatments already tried
Bring previous biopsy results
Ask whether full skin examination is planned
Confirm procedure and pathology coverage
Ask whether cosmetic care is self-pay
Urgent skin warning: Call 911 for a severe allergic reaction with breathing trouble or facial swelling. Contact the office promptly for rapidly changing, bleeding or infected skin problems.
Orthopedic and sports-medicine appointments
Problems evaluated
- Ankle, elbow, hip and knee pain
- Back and neck pain
- Shoulder problems
- Osteoarthritis
- Concussion
- Overuse and sports injuries
Specialized services listed
- Non-surgical orthopedic management
- Ultrasound-guided injections
- PRP and regenerative options
- Stem-cell therapy discussions
- Workers’ compensation care
- Surgical referral when necessary
Coverage warning: PRP, stem-cell and other regenerative treatments may not be covered by insurance. Ask for a written estimate and evidence-based explanation of expected benefits, limitations and alternatives.
Orthopedic scheduling script
“I need an orthopedic evaluation for [body area]. The problem began on [date] after [injury or activity]. Do I need imaging before the visit, does my plan require referral, and is the proposed treatment covered or self-pay?”
Allergy, asthma and immunology testing and treatment
Allergic conditions
Food allergy, medication allergy, insect-sting allergy, allergic rhinitis, conjunctivitis, eczema, hives and angioedema.
Testing and challenges
Drug challenges, food challenges and spirometry may be used when clinically appropriate.
Advanced treatment
Subcutaneous immunotherapy, sublingual immunotherapy, biologic care and immunoglobulin infusion are listed services.
Ask about medication restrictions
Antihistamines and other medicines may affect selected allergy tests. Do not stop anything without office instructions.
Bring reaction details
Record the suspected trigger, timing, symptoms, treatment and emergency care received.
Bring photographs and emergency records
Images, laboratory results and emergency-department notes can help reconstruct a past reaction.
Confirm procedure authorization
Challenges, infusion and immunotherapy may require separate insurance approval.
Anaphylaxis is an emergency. Use prescribed epinephrine as directed and call 911 for breathing difficulty, throat swelling, faintness or a severe multi-system allergic reaction.
Gastroenterology conditions and procedures
| Care area | Examples | Important scheduling question |
|---|---|---|
| Upper digestive symptoms | Acid reflux, heartburn, swallowing difficulty and upper abdominal symptoms. | Is consultation needed before endoscopy? |
| Bowel conditions | Constipation, diarrhea, IBS, Crohn’s disease, ulcerative colitis and diverticular disease. | What records, stool studies or previous colonoscopy reports are needed? |
| Liver, gallbladder and pancreas | Fatty liver, viral hepatitis, bile-duct disease, gallbladder disease and pancreatitis. | Should laboratory or imaging testing occur before the visit? |
| Procedures | Colonoscopy, upper endoscopy, capsule endoscopy and hemorrhoid banding. | Which facility performs the procedure and which bills will be separate? |
| Infusion care | Infusion treatment for selected digestive conditions. | Is medication authorization complete before arrival? |
Emergency digestive symptoms: Seek urgent evaluation for vomiting blood, black stools, severe persistent abdominal pain, fainting, significant dehydration or rapidly worsening symptoms.
Neurology and neuroimmunology at Stoll Medical Group
Headache and injury
Migraine, other headaches and concussion evaluation are listed services.
Neuroimmune disease
Multiple sclerosis, NMOSD, MOGAD, CIDP and related neuroimmune conditions.
Nerve and muscle disorders
Neuropathy, neuromuscular conditions and spasticity management.
Bring MRI and CT reports
Bring image discs when available
List previous neurologic treatments
Create a symptom timeline
Bring hospital and specialist notes
Confirm referral and authorization
Possible stroke: Sudden facial drooping, arm weakness, speech difficulty, severe imbalance or a new major neurologic deficit requires 911—not a routine neurology appointment.
How blood draws and laboratory billing work
Stoll Medical Group states that trained phlebotomists perform blood draws on site. Labcorp and Quest Diagnostics process the specimens.
Confirm that the order exists
Ask whether the order was entered by a Stoll provider or brought from another clinician.
Ask whether fasting is required
Do not fast unless the ordering clinician gives clear instructions.
Verify the processing laboratory
Confirm whether Labcorp or Quest is in network under the exact insurance product.
Bring identification and insurance
The processing lab requires accurate billing information.
Ask how results will be released
Results may appear in the portal before the clinician sends an interpretation.
Separate bill possible: Labcorp or Quest may send a bill that is separate from the Stoll office charge. Contact the laboratory shown on the statement about laboratory claim errors.
Prescription refill timing and prior authorization
Submit a routine request
Use the portal or call the prescription-refill line through 267-273-1196.
Provide complete medication information
Include the name, strength, directions, pharmacy and remaining doses.
Allow two to three business days
Submit before the medicine is nearly finished.
Allow three to five days for insurance approval
Prior authorization requires communication among the office, insurer and pharmacy.
Controlled substances are weekday-only
Controlled pain-medicine requests are processed Monday through Friday.
After-hours service cannot refill medicine
The on-call physician service is for urgent medical concerns, not routine refill or referral requests.
Refill follow-up script
“I requested [medicine and strength] on [date] through [portal or telephone]. I have [number] doses left. Please confirm whether the request was received, whether prior authorization is required and whether I need an appointment or monitoring test.”
After-hours, urgent-care and emergency routing
Same-day illness during office hours
Call for an urgent-care appointment. Do not arrive without confirming availability.
Urgent concern after closing
Call 267-273-1196 and follow the instructions for the on-call physician.
Life-threatening emergency
Call 911 or go to the nearest appropriate emergency department immediately.
After-hours limitations: Prescription refills and referrals are not handled by the on-call service. Use it only for an urgent medical concern.
| Situation | Starting point | Do not wait when |
|---|---|---|
| Cold, sore throat or mild infection | Primary-care sick appointment. | Breathing becomes difficult or symptoms rapidly worsen. |
| Joint or sports injury | Primary care or orthopedics. | There is severe deformity, absent pulse, major trauma or loss of feeling. |
| Allergic symptoms | Allergy department or primary care for stable symptoms. | There is throat swelling, breathing difficulty, faintness or suspected anaphylaxis. |
| Headache or neurologic symptoms | Primary care or neurology for stable recurrent symptoms. | Symptoms suggest stroke, meningitis, seizure or sudden severe neurologic change. |
Insurance accepted by Stoll Medical Group Philadelphia
Plans listed as participating
Aetna POS/PPO/HMO, AmeriHealth, Anthem and other BCBS PPO products, Cigna PPO, Highmark, Horizon BCBS PPO, IBC products, Medicare, Meritain, Oxford, Tricare Standard, UMR and selected UnitedHealthcare products.
PCP-selection warning
IBC Keystone Health Plan East is specifically listed as requiring PCP selection.
Plans listed as non-participating
Aetna Better Health, AmeriHealth Caritas, Keystone First, Medicaid/Access Card, Oscar, Humana, Tufts, Cigna Connect and UnitedHealthcare Community Plan are among the exclusions.
Insurance lists change. Verify the specific provider, office, department and service with both Stoll Medical Group and the insurer before care.
Read the full plan name
Include the product, employer group and network shown on the card.
Name the exact clinician
Participation can differ among providers within a multispecialty group.
Give the Philadelphia address
Verify coverage at 1528 Walnut Street, Suite 950.
Describe the service
Ask separately about office visits, allergy testing, procedures, injections, laboratory work and cosmetic care.
Confirm referral and authorization
Ask who submits approval and obtain a call-reference number.
Insurance-verification script
“I plan to see [provider] in Stoll Medical Group’s [department] at 1528 Walnut Street, Suite 950. Is the provider, location and planned service in network? Do I need PCP selection, referral or authorization, and what copay, deductible or coinsurance applies?”
Stoll Medical Group billing and online payment
At the appointment
Stoll collects applicable copays and coinsurance at the time of service.
Accepted office methods
The insurance page lists cash, credit cards, debit cards and checks.
Online payment
Advocare provides a secure online bill-payment route linked from the Stoll website.
Match the practice and patient
Confirm that the statement identifies Advocare Stoll Medical Group and the correct patient.
Compare the statement with the EOB
Review the service date, provider, billed amount, allowed amount and patient responsibility.
Check for separate charges
Laboratory, pathology, procedure-facility and medication charges may arrive separately.
Call before paying a disputed amount
Use the telephone number on the statement or call the practice for billing routing.
Protect financial information
Start from the official Stoll or Advocare payment page rather than an unsolicited text or email.
Billing-question script
“I received a statement for service date [date] from [provider or department]. Please explain the charge, insurance payment, adjustment and remaining balance. Does the claim need corrected insurance, referral, authorization or coding information?”
How to request Stoll Medical Group medical records
Choose the request type
Select records from a specific location or provider, or records from all Advocare locations and providers.
Prepare identification
The online process requires a valid email address and government-issued ID.
Identify the patient and date range
Use the legal name, birth date and precise treatment dates when known.
Select the records needed
Request office notes, test results, billing records, immunizations or the complete available chart.
Upload representative documents
A legal healthcare representative may need an advance directive, healthcare power of attorney or conservatorship document.
Consent to status notifications
Email and text updates make it easier to track progress.
Allow five to seven business days
Advocare lists this as the general turnaround for an electronic request.
Sharecare record support
Use for request-status and online record-service support.
In-person request
Complete Advocare’s authorization for use or disclosure of protected health information and return it to the Stoll care center.
Who can sign: The patient, parent or legal guardian, or legally authorized healthcare representative must sign the release.
Medical-record status script
“I submitted a medical-record request on [date] for records from [date range]. Please confirm whether my identification and authorization are complete, whether an invoice is due and the expected release date.”
Common Stoll Medical Group problems and the fastest correction
You reached the building but cannot find the practice
Use Suite 950 and allow time for the elevator and building directory.
You scheduled the wrong department
Call before the appointment so staff can determine whether the visit should be moved.
The online scheduler shows no appointment
Call 267-273-1196 because not every provider and visit type is available online.
You are more than 15 minutes late
Call immediately; the office may offer another provider, work you into the schedule or reschedule.
The portal cannot find the patient
Ask Stoll to verify the legal name, email, telephone number and practice connection.
A refill is delayed
Check whether the request needs three to five days for insurance prior authorization.
A laboratory bill looks unfamiliar
Check whether Labcorp or Quest processed the specimen and contact the laboratory shown.
The specialist requires a referral
Ask the PCP and insurer which party must submit it before care.
The insurance company name appears accepted but the claim denied
Verify the exact product and whether the specific provider or procedure participates.
You need the complete chart
Use Sharecare rather than relying only on Healow portal documents.
Stoll Medical Group Philadelphia frequently asked questions
Where is Stoll Medical Group in Philadelphia?
The office is at 1528 Walnut Street, Suite 950, Philadelphia, PA 19102. Call 267-273-1196.
What are the Philadelphia office hours?
Monday through Thursday from 8:30 a.m. to 7:30 p.m. and Friday from 8:30 a.m. to 4:30 p.m. The office is closed on weekends.
Is Stoll accepting new patients?
Yes. Provider, department and insurance availability should be confirmed before scheduling.
What specialties are available?
Stoll offers primary care, dermatology, orthopedics, allergy and immunology, gastroenterology and neurology.
How do I schedule an appointment?
Call 267-273-1196 or use an official online booking button when available. All office visits are appointment-only.
What portal does Stoll use?
The practice uses Advocare’s eClinicalWorks portal and Healow mobile application.
How long does a prescription refill take?
Allow two to three business days for a routine refill and at least three to five days when prior authorization is needed.
Can I have blood drawn in the office?
Yes. Stoll performs on-site blood draws, with Labcorp and Quest processing the specimens.
How do I request medical records?
Submit an online Sharecare request through Advocare or return a signed release form to the care center. Electronic requests generally take five to seven business days.
What should I do after the office closes?
Call the regular number for the on-call physician when the concern is urgent. Refills and referrals are not handled after hours. Call 911 for an emergency.
Official Stoll Medical Group and Advocare patient tools
The important procedures are explained above. Use these official systems when ready to complete a live appointment, portal, payment, form or record request.