NPPES file of Aug 9, 2026

James Jinwook Chun, D.M.D

General Practice Dentistry · Gaithersburg, MD

James Jinwook Chun, D.M.D is a general practice dentistry with a practice address in Gaithersburg, Maryland, and NPI 1982852612, issued on Sep 6, 2008. Check the license with the Maryland board that licenses this profession; 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
1982852612
Name
James Jinwook Chun
Credential
D.M.D
Primary taxonomy
General Practice Dentistry 1223G0001X
License number
0401411022 VA
Self-reported in NPPES; status is on the state search
Practice location
120 Ellington Blvd, Gaithersburg, MD 20878
Phone
(301) 987-0600
Enumerated
Sep 6, 2008
Record last updated
May 15, 2026
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify James Jinwook Chun in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Maryland board licenses this professionCheck 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
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45% fewer Medicare Part D claims than the average general practice dentistry in 2024

46 Medicare Part D claims for 32 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D.

  1. James Chun46
  2. Specialty average83

Most prescribed

  1. Amoxicillin29 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.

James Jinwook Chun among 2,408 general practice dentistry records in Maryland

James Jinwook Chun, D.M.D is one of 2,408 general practice dentistry records with a practice address in Maryland. 62% 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 55% of them.

  • NPI issued2008 · 55% of these records are older, 40% newer
  • In a Medicare fileYes · 62% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2026 · 72% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

68 general practice dentistry records list a practice address in Gaithersburg

They are 68 of the 2,580 NPPES records with a practice address in Gaithersburg, and 2,408 general practice dentistry records in Maryland.

The 8 general practice dentistry records with the nearest ZIP codes

  1. Attieh Arefian, DMDGaithersburg, MD 208781568607091
  2. Claire Clarke, DDSNorth Potomac, MD 208781215067897
  3. Chitra Ghafari, DDSGaithersburg, MD 208781437303450
  4. Leonard Gordon, D.D.S.Gaithersburg, MD 208781467554121
  5. Holly Griffin, DDSGaithersburg, MD 208781700856564
  6. Jennifer Joobbani, DDSNorth Potomac, MD 208781831419571
  7. Gloria Lee, DDSNorth Potomac, MD 208781467644047
  8. Farnoush Mirmiran, DDSGaithersburg, MD 208781962587063

Common questions

What is James Jinwook Chun, D.M.D's NPI number?

James Jinwook Chun, D.M.D's National Provider Identifier (NPI) is 1982852612, issued on Sep 6, 2008. An NPI identifies a provider in billing; it is not a license.

Where is James Jinwook Chun, D.M.D located?

The NPPES record lists a practice address at 120 Ellington Blvd, Gaithersburg, MD, 20878. Phone: (301) 987-0600. Providers update this record themselves, so call before visiting.

How can I verify James Jinwook Chun, D.M.D's license?

Search the Maryland board that licenses this profession; the NPPES record confirms identity only.

How much does James Jinwook Chun, D.M.D prescribe under Medicare Part D?

In 2024, James Jinwook Chun, D.M.D had 46 Medicare Part D claims for 32 beneficiaries; the average among general practice dentistry prescribers was 83. 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.