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Internal Medicine Providers in Annandale, VA

Browse 18 Internal Medicine providers listed in NPPES with a practice address in Annandale, Virginia.

18 Healthcare Providers

How Annandale compares with the U.S.

Annandale has 43 clinicians in Internal Medicine per 100,000 residents, close to the U.S. rate of 44.

That is 18 active clinicians in Internal Medicine with a practice address in Annandale, for a population of 41,705.

That is close to the Virginia rate of 41.

What these numbers mean

Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.

A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.

City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places.

86% of clinicians in Internal Medicine in Annandale listed in the CMS Medicare file (12 of 14) accept Medicare assignment. That is lower than the Virginia share of 97%.

What is Medicare assignment?

A clinician who accepts Medicare assignment agrees to take the Medicare-approved amount as full payment for services that Original Medicare covers. You usually still pay your deductible and coinsurance. This comes from the CMS Doctors and Clinicians file and applies to Original Medicare only. Medicare Advantage plans have their own provider networks. It does not show whether a clinician is taking new patients.

Some clinicians are listed as "may accept assignment," which means they can decide case by case. Clinicians without an assignment flag, or who are not in the CMS file, are not counted as accepting assignment. That does not mean they refuse Medicare. Ask the office before your visit.

79% of clinicians in Internal Medicine in Annandale listed in the CMS Medicare file (11 of 14) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is higher than the Virginia share of 32%.

About the telehealth indicator

The telehealth indicator comes from CMS. It marks clinicians whose recent paid Medicare claims include services delivered by telehealth. It means a clinician has provided some services by telehealth, not that every visit can be done online. A clinician without the indicator may still offer telehealth, for example to patients who are not on Medicare. Ask the office which visits can be done by video or phone.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com ยท Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Medicare assignment and telehealth indicators: CMS Doctors and Clinicians National Downloadable File. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Internal Medicine Medicare (PECOS) Enrollment & Ordering Eligibility

Medicare enrollment and order/referring eligibility listed by CMS for Internal Medicine practitioners in Annandale, VA

Source: CMS PECOS
PECOS Enrolled Specialists 15 In Annandale, VA
Part B Lab & Imaging Eligible 15 Diagnostic Referrals
DME Ordering Eligible 15 Durable Medical Equipment
Home Health Agency Referrals 15 HHA Ordering Eligible
Showing 1โ€“18 of 18 providers
With recent CMS data first, then Aโ€“Z

Dr. Nana Osei Amoah , MD, FACP

Internal Medicine

Active NPI Status Telehealth Services Available
6715 Little River Tpke, Suite 205, Annandale, VA 220033546
Phone: 7039427339
NPI Identifier 1962646596
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Dr. Jennifer Gorrelick , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
3301 Woodburn Rd, Annandale, VA 220031229
Phone: 7033497434
NPI Identifier 1457399230
View Full Profile

Dr. Mark J Granada , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
3289 Woodburn Rd Ste 350, Annandale, VA 220037357
Phone: 7036418616
NPI Identifier 1467642504
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Dr. Tony Yu Lea Hsiao , MD

Internal Medicine

Active NPI Status
7507 Little River Turnpike, #103, Annandale, VA 22003
Phone: 7032561335
NPI Identifier 1952517971
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Sonia Ayisi Johnson , NP-C

Internal Medicine

Active NPI Status Accepts Medicare Assignment
6715 Little River Tpke Ste 205, Annandale, VA 220033546
Phone: 7039427339
NPI Identifier 1205320116
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Dr. John K. Kim , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
7700 Little River Tpke Ste 102, Annandale, VA 220032400
Phone: 7037524623
NPI Identifier 1053472159
View Full Profile

Dr. Connie Diem Khanh Le , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
4208 Evergreen Ln Ste 214, Annandale, VA 220033254
Phone: 7036426633
NPI Identifier 1891886909
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Dr. Martha Marie Maturi , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
7601 Little River Tpke, Suite 100, Annandale, VA 220032601
Phone: 7036421004
NPI Identifier 1508982414
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Dr. Ngoc-Ha T. Nguyen , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
7202-C Poplar St, Annandale, VA 22003
Phone: 7036423220
NPI Identifier 1750346870
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Dr. Quang H. Pham , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
7617 Little River Tpke Ste 600, Annandale, VA 220032603
Phone: 5716656636
NPI Identifier 1326484221
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Maziar Sadri

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
7501 Little River Tpke Ste 303, Annandale, VA 220032923
Phone: 7032564141
NPI Identifier 1922487198
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Dr. Roya Sedghi , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
7501 Little River Tpke, Ste 303, Annandale, VA 220032923
Phone: 7032564141
NPI Identifier 1871517037
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Dr. Julia Stanford , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
3301 Woodburn Rd Ste 306, Annandale, VA 220037307
Phone: 7038107166
NPI Identifier 1235170853
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Dr. Chad J Zik , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
7617 Little River Tpke Ste 850, Annandale, VA 220032618
Phone: 5716656620
NPI Identifier 1134509359
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Dr. Kristi Ngo , MD

Internal Medicine

Active NPI Status
7617 Little River Tpke Ste 850, Annandale, VA 220032673
Phone: 5716656620
NPI Identifier 1083111504
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Dr. Phong Dong Nguyen , MD

Internal Medicine

Active NPI Status
6800 Little River Turnpike, Annandale, VA 22003
Phone: 7033544501
NPI Identifier 1659424836
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Dr. Quan Quoc Nguyen , MD

Internal Medicine

Active NPI Status
4217 Evergreen Ln, Annandale, VA 220033210
Phone: 7033542629
NPI Identifier 1780686444
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Dr. Lubna Varcie Zahir , MD

Internal Medicine

Active NPI Status
3301 Woodburn Rd, Suite 202, Annandale, VA 220031229
Phone: 7032084040
NPI Identifier 1538190566
View Full Profile

Frequently Asked Questions about Internal Medicine in Annandale

How do I check a Internal Medicine practitioner's license?

Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the Virginia licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.

Why is a practitioner missing from this list?

This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.