Navigate Lancaster Primary Care, Urgent Care, Labs and Specialists From One Medical Hub
Lancaster High Desert Medical Group refers to the High Desert Medical Group campus at 43839 15th Street West in Lancaster. HDMG has served the Antelope Valley since 1981 and combines primary care with urgent care, diagnostic services, specialty access, senior-focused programs, health education and member support.
The most important thing to understand is that not every medical problem starts at the same desk. Your primary care provider handles routine care and referrals, the Lancaster Urgent Care handles many non-life-threatening problems seven days a week, the Geriatric Emergent Care Center provides a separate weekday senior pathway, and the 24-hour nurse line can help when you are unsure where to go.
This guide explains those pathways, current phone numbers, suites, insurance rules, portal access, records, referrals and practical Lancaster details before sending you to an outside portal for the final live action.
43839 15th Street West.
8 AM-5 PM, Monday-Friday.
8 AM-8 PM daily, 365 days.
Free 24/7 member advice.
August 10, 2026.
PCP, Lancaster Urgent Care or emergency room: where should you start?
HDMG says your PCP should be your first contact during normal business hours because that provider knows your medical history and coordinates your overall healthcare.
The Lancaster Urgent Care is available every day for problems that need prompt attention but do not appear to require emergency-room care.
Do not use urgent care merely because it may cost less when symptoms suggest a true emergency.
High Desert Medical Group Lancaster address, suites and phone numbers
Lancaster, CA 93534
Main Lancaster number: 661-945-5984
Suite 101
Lancaster, CA 93534
Current FAQ lists Monday-Friday, 8:30 AM-5 PM.
Suite 201
Lancaster, CA 93534
Main: 661-945-5984
Toll-free support: 800-266-4364
How to schedule the correct High Desert Medical Group visit
Why choosing the right HDMG primary care provider matters
High Desert Medical Group describes your PCP as the person who manages and coordinates your healthcare needs. That makes PCP selection more important than simply choosing the first available name.
A common choice for broad primary care across different adult and family health needs.
Focuses on adult primary care and can be especially useful for adults managing several chronic conditions.
Select a pediatric provider when the patient is a child and your health-plan assignment allows that option.
Use this five-point PCP test
Examples of Lancaster HDMG providers currently listed for new patients
HDMG’s directory actively shows whether a clinician is accepting new patients. This is more useful than an old static physician list because availability can change.
| Provider | Primary-care field | Current directory status | Practical note |
|---|---|---|---|
| Vincent Ho, MD | Internal Medicine | Accepting new patients | Listed with High Desert Medical Group in Lancaster. |
| Mihir Patel, MD | Internal Medicine | Accepting new patients | Verify health-plan participation before assignment. |
| Navid Mahabadi, DO | Internal Medicine | Accepting new patients | Current status should be rechecked when scheduling. |
| Qanwarpartap Sidhu, MD | Family Medicine | Accepting new patients | Listed with High Desert Medical Group in Lancaster. |
| Jackline Sutherland, DNP-FNP-C | Internal Medicine | Accepting new patients | Advanced-practice primary-care option. |
| Eric Warda, FNP-BC | Internal Medicine | Accepting new patients | Advanced-practice provider currently shown as open to new patients. |
| James Wong, PA-C | General Medicine | Accepting new patients | Current directory places this provider at HDMG Lancaster. |
High Desert Medical Group Lancaster Urgent Care: hours, walk-ins and conditions treated
43839 15th Street West, Suite 108, Lancaster, CA 93534.
8 AM-8 PM daily, 365 days a year.
Problems HDMG says Urgent Care can evaluate
Current holiday exception
HDMG’s current Urgent Care page continues to publish reduced hours of 8 AM-5 PM on Thanksgiving Day and Christmas Day. Other holiday hours are not listed there, so check the live page or call before relying on a holiday schedule.
Geriatric Emergent Care Center at the Lancaster campus
HDMG’s current FAQ lists a separate Geriatric Emergent Care Center intended for senior patients.
Suite 101 at 43839 15th Street West.
Monday through Friday.
8:30 AM-5 PM.
How the HDMG 24-hour Nurse Advice Line works
The Nurse Advice Line is one of the most useful HDMG services when a patient is unsure whether a problem can wait for the PCP, needs Urgent Care or may require an emergency department.
24 hours a day.
7 days a week, 365 days a year.
HDMG describes the call as free to members.
What the nurse can help with
Have two things ready before calling
The nurse asks for a number that can be used if the call is disconnected.
HDMG tells members to have their plan identification number available.
What services can be coordinated through the Lancaster HDMG network?
HDMG is a multi-specialty medical group rather than a single doctor’s office. The Lancaster campus and network are designed so primary care can connect with testing, specialty services and member programs.
Family medicine, internal medicine and pediatric provider options are searchable through the HDMG directory.
Laboratory services have historically operated within the Lancaster medical complex; confirm the current draw site and hours before traveling.
The Lancaster facility is designed to connect members with X-ray and diagnostic services when ordered.
Open daily for non-life-threatening illness and injury.
HDMG maintains a large specialist directory covering numerous medical and surgical disciplines.
HDMG maintains educational and disease-management resources for members.
The medical network has developed specialty and infusion-care capabilities for eligible patients.
Services include senior-focused urgent access, wellness and enrichment programs.
HDMG describes disease management, complex care, transitional care and care-navigation programs.
What the High Desert Medical Group patient portal can do
HDMG uses the NextGen Patient Portal as its secure online patient system.
Use secure portal communication for appropriate non-emergency patient questions.
HDMG lists appointment requests among portal capabilities.
Routine refill requests can be initiated through the patient system when appropriate.
HDMG describes 24-hour portal access to patient medical records.
Portal login troubleshooting
How to transfer or access High Desert Medical Group medical records
HDMG’s FAQ says you can obtain the required authorization form through High Desert Medical Group or through your previous physician’s office.
After the authorization is completed, the previous records can be sent to the new physician or medical group.
Enroll in the NextGen Patient Portal for access to available medical-record information online.
If you need a complete formal record set for another organization, ask HDMG which release process is required rather than assuming portal screenshots are sufficient.
Make a transfer easier
How specialist referrals work at High Desert Medical Group
HDMG identifies the PCP as the central coordinator for referrals to specialists and other medical services. Referral and authorization requirements can also depend on your health plan.
Before ending a referral call, get these details
High Desert Medical Group insurance plans and 2026 verification
HDMG’s health-plan page separates coverage by line of business, including Commercial, Senior, Exchange, Medi-Cal and Medi-Medi. That is why seeing an insurer’s logo does not guarantee that every product from that insurer participates.
Listed in the current HDMG health-plan matrix for selected lines of business.
Currently included for selected HDMG products.
Senior-plan participation is shown in HDMG’s current matrix.
Blue Shield of California and related products appear in current plan information.
Listed for selected coverage categories.
HDMG’s matrix shows participation across multiple lines of business.
Senior and selected dual-related participation is shown.
Listed across several government-sponsored coverage categories.
Appears in HDMG’s current senior plan information.
Listed for selected Commercial and Senior products.
Shown for selected Senior and dual-related coverage.
HDMG works with Medicare and government-sponsored programs, but exact plan assignment still matters.
What HDMG Member Services can actually help with
Member Services can help with PCP-selection questions.
Use Member Services when your coverage or eligibility is unclear.
Representatives can help explain where a referral stands or where to direct a referral concern.
Member Services can help route questions about a bill you received.
The Lancaster FAQ also describes Member Services helping patients with appointment questions.
HDMG states that Spanish-speaking personnel are available.
Monday-Friday, 8 AM-5 PM. Confidential voicemail is available after hours.
Suite 201 at the main Lancaster facility is listed for Member Services.
Need transportation to HDMG care?
The current Lancaster Urgent Care page tells patients who need transportation assistance to call 800-266-4364 so HDMG can help coordinate a ride.
Interpreter and TDD/TTY services for HDMG members
HDMG states that language-assistance and interpreter services are available at no cost to members with limited English proficiency.
Ask the physician or HDMG staff for language-assistance support when needed.
HDMG publishes 800-735-2922 for deaf, hard-of-hearing and speech-impaired members.
Practical Lancaster High Desert Medical Group shortcuts
That is the published Lancaster Urgent Care suite.
That is the Geriatric Emergent Care Center listed in the current FAQ.
Member Services is listed there when you need in-person navigation help.
The free 24/7 line can help determine whether you need urgent or emergency care.
HDMG specifically lists medication refills among normal primary-care responsibilities.
The Nurse Advice Line asks members to have their health-plan identification available.
Do not rely on an old doctor list; HDMG actively updates provider availability.
Make sure the referral, authorization and correct office have been identified first.
HDMG announced that the pharmacy location inside the Lancaster campus closed in 2023.
What to do when the normal HDMG process stalls
High Desert Medical Group and Heritage Health Care are related but use different locations
Lancaster, CA 93534
Palmdale, CA 93552
Lancaster High Desert Medical Group FAQs
1. Where is High Desert Medical Group in Lancaster?
The main facility is at 43839 15th Street West, Lancaster, CA 93534. The main Lancaster number is 661-945-5984.
2. What are the normal Lancaster clinic hours?
HDMG publishes main clinic hours of 8 AM to 5 PM Monday through Friday. Urgent Care uses a separate schedule.
3. What are Lancaster Urgent Care hours?
The current HDMG schedule is 8 AM to 8 PM daily, 365 days a year. Thanksgiving and Christmas currently show reduced 8 AM to 5 PM hours.
4. Does HDMG Urgent Care accept walk-ins?
Yes. HDMG says walk-ins and virtual urgent-care appointments are accepted. Call 661-949-3512 for current scheduling information.
5. Is there a 24-hour nurse number?
Yes. HDMG members can call 800-424-2273 free of charge 24 hours a day, seven days a week.
6. What can I do through the HDMG patient portal?
The NextGen portal can be used for secure physician communication, appointment requests, prescription-refill requests and 24-hour access to available medical-record information.
7. How do I find a High Desert Medical Group primary-care doctor?
Use HDMG’s provider finder and search by name, location or Family Medicine, Internal Medicine or Pediatrics. Check the live new-patient status before choosing a doctor.
8. What insurance does HDMG accept?
HDMG’s current matrix includes multiple Aetna, Anthem, Alignment, Astiva, Blue Shield, Cigna, Health Net, Humana, Molina, SCAN, UnitedHealthcare and Wellcare lines. Participation varies by exact product and coverage category.
9. Does Lancaster HDMG have urgent care specifically for seniors?
The current HDMG FAQ lists a Geriatric Emergent Care Center in Suite 101, Monday-Friday from 8:30 AM to 5 PM. Verify availability before traveling.
10. How do I transfer my medical records to HDMG?
Complete a medical-record authorization obtained from HDMG or your previous physician. Once completed, the records can be sent to the new physician or medical group. Current HDMG patients can also use the NextGen portal for available record access.
Official High Desert Medical Group tools
The core Lancaster process is explained above. Use these official tools when you are ready to perform a live search, schedule an appointment, sign into your record or verify a current plan.