NPPES file of Aug 9, 2026

Hwang Hyun Junn, M.D.

General Practice Physician · Annandale, VA

Hwang Hyun Junn, M.D. is a general practice physician with a practice address in Annandale, Virginia, and NPI 1659539195, issued on May 31, 2008. Check the license (Virginia 0101242585, as entered in NPPES) on the Virginia Department of Health Professions; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1659539195
Name
Hwang Hyun Junn
Credential
M.D.
Primary taxonomy
General Practice Physician 208D00000X
License numbers
0101242585 VA
A 103692 CA
Self-reported in NPPES; status is on the state search
Practice location
4216 Evergreen LN, Annandale, VA 22003
Phone
(703) 468-4462
Enumerated
May 31, 2008
Record last updated
Apr 8, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(703) 256-4680
Medicare enrollment
Enrolled (PECOS I20091008000046); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 4216 Evergreen LN

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. John Durr, D.D.S, J.DGeneral Practice Dentistry1356580708

Verify Hwang Hyun Junn in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersVirginia Department of Health Professions
    Search for license 0101242585
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Virginia license search

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70% more Medicare Part D claims than the average general practice physician in 2024

5,160 Medicare Part D claims for 303 beneficiaries, against an average of 3,030 among the 8,395 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.

  1. Hwang Junn5,160
  2. Specialty average3,030

Most prescribed

  1. Atorvastatin Calcium463 claims
  2. Losartan Potassium282 claims
  3. Amlodipine Besylate264 claims
  4. Rosuvastatin Calcium253 claims
  5. Fluticasone Propionate243 claims
  6. Montelukast Sodium219 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score100.0
  2. Costout of 100 · 30%100.0
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $86.07

4 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 4,259 providers of this specialty with any payment received $1,273.40 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Hwang Junn$86.07
  2. Specialty average$1,273.40

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Hwang Hyun Junn among 400 general practice physician records in Virginia

Hwang Hyun Junn, M.D. is one of 400 general practice physician records with a practice address in Virginia. 34% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 32% of them.

  • NPI issued2008 · 32% of these records are older, 64% newer
  • In a Medicare fileYes · 34% of these records are
  • In the CMS Doctors and Clinicians fileYes · 17% of these records are
  • Graduated1979 · median 2002 among the 68 with a school on file
  • Record last updated2015 · 39% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208D00000X and a Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

General Practice Physician providers in Virginia

There are 400 general practice physician records in Virginia.

The 8 general practice physician records with the nearest ZIP codes

  1. Shadi Ayyas, MDFairfax, VA 220301629490172
  2. Thanh Do, D.O.Fairfax, VA 220311902854250
  3. Hoda Makkawi, M.D.Fairfax, VA 220311144265216
  4. Jay Feder, MDFairfax, VA 220331417989682
  5. Neil Huckstep, MDFairfax, VA 220331881388148
  6. Anoushirvan Sarraf, MDFairfax, VA 220331134303423
  7. Mohammad Islam, MDFalls Church, VA 220411265060875
  8. Segundo Morillo, MDFalls Church, VA 220411194915488

Common questions

What is Hwang Hyun Junn, M.D.'s NPI number?

Hwang Hyun Junn, M.D.'s National Provider Identifier (NPI) is 1659539195, issued on May 31, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Hwang Hyun Junn, M.D. located?

The NPPES record lists a practice address at 4216 Evergreen LN, Annandale, VA, 22003. Phone: (703) 468-4462. Providers update this record themselves, so call before visiting.

How can I verify Hwang Hyun Junn, M.D.'s license?

NPPES lists Virginia license number 0101242585, as entered by the provider. Search the Virginia Department of Health Professions at https://dhp.virginiainteractive.org/lookup/index. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Hwang Hyun Junn, M.D. prescribe under Medicare Part D?

In 2024, Hwang Hyun Junn, M.D. had 5,160 Medicare Part D claims for 303 beneficiaries; the average among general practice physician prescribers was 3,030. Part D covers Medicare prescriptions only.

What is Hwang Hyun Junn, M.D.'s MIPS final score?

The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.