NPPES file of Aug 9, 2026

Jihyun Ann Jun, DO

Family Medicine Physician · Hyattsville, MD

Jihyun Ann Jun, DO is a family medicine physician with a practice address in Hyattsville, Maryland, and NPI 1639607773, issued on Jun 2, 2017. Check the license (Maryland H89323, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1639607773
Name
Jihyun Ann Jun
Credential
DO
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
H89323 MD
Self-reported in NPPES; status is on the state search
Practice location
6525 Belcrest RD, Hyattsville, MD 20782
Phone
(703) 359-7878
Enumerated
Jun 2, 2017
Record last updated
Jun 30, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20200917000230); accepts Medicare assignment
Medical or professional school
At Still University Of Health Sciences, College Of Osteo Med, Kirksville, 2017
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 6525 Belcrest RD

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

  1. Olubunmi Adeyemo, PHARMDPharmacist1477894228
  2. Temitope Awofeso, PHARMD, BCPSAmbulatory Care Pharmacist1518317833
  3. Kim Barry, MSW, LICSW, LCSW-CClinical Social Worker1306060447
  4. Arden BronsteinGeneral Practice Dentistry1538352406
  5. Brittany Carroll, PHARMDAmbulatory Care Pharmacist1306325709
  6. Edward Cartwright, M.D.Obstetrics & Gynecology Physician1548395866

Verify Jihyun Ann Jun in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license H89323
    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 Maryland license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Most of these Medicare Part D claims are vaccines, 51% of the cost of the top drugs

3,388 Medicare Part D claims for 354 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 13 claims were for opioids.

  1. Jihyun Jun3,388
  2. Specialty average3,544

Most prescribed

Pharmacies often give vaccines under a standing order that names one clinician, and CMS counts every such claim under that clinician's NPI. These claims are therefore not a measure of this clinician's own prescribing.

  1. Atorvastatin Calcium411 claims
  2. Amlodipine Besylate239 claims
  3. Lisinopril168 claims
  4. Losartan Potassium164 claims
  5. Metformin Hcl131 claims
  6. Arexvy118 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.

Bills Medicare through one group practice

  1. Kaiser Foundation Health Plan OF The Mid Atlantic States, IncLargo, MD

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Jihyun Ann Jun among 1,912 family medicine physician records in Maryland

Jihyun Ann Jun, DO is one of 1,912 family medicine physician records with a practice address in Maryland. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 82% of them.

  • NPI issued2017 · 82% of these records are older, 16% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2017 · median 2004 among the 1,141 with a school on file
  • Record last updated2021 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

24 family medicine physician records list a practice address in Hyattsville

They are 24 of the 2,196 NPPES records with a practice address in Hyattsville, and 1,912 family medicine physician records in Maryland.

The 8 family medicine physician records with the nearest ZIP codes

  1. Ellen Finkelman, MDHyattsville, MD 207821134287030
  2. Rachel Gougian, DOUniversity Park, MD 207821528420387
  3. Joshua Holloway, MDHyattsville, MD 207821003981952
  4. Heather Kearney, M.D.Hyattsville, MD 207821447483821
  5. Lonnie Lee, MDHyattsville, MD 207821992866271
  6. Anne-Marie McCabe, M.D.Hyattsville, MD 207821538212451
  7. Patricia O Hora, MDHyattsville, MD 207821659436822
  8. Chioma Ohalete, DOHyattsville, MD 207821851561286

Common questions

What is Jihyun Ann Jun, DO's NPI number?

Jihyun Ann Jun, DO's National Provider Identifier (NPI) is 1639607773, issued on Jun 2, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Jihyun Ann Jun, DO located?

The NPPES record lists a practice address at 6525 Belcrest RD, Hyattsville, MD, 20782. Phone: (703) 359-7878. Providers update this record themselves, so call before visiting.

How can I verify Jihyun Ann Jun, DO's license?

NPPES lists Maryland license number H89323, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Jihyun Ann Jun, DO prescribe under Medicare Part D?

In 2024, Jihyun Ann Jun, DO had 3,388 Medicare Part D claims for 354 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

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.