NPPES file of Aug 9, 2026

Yun W. Oh, M.D.

Hematology & Oncology Physician · Frederick, MD

Yun W. Oh, M.D. is a hematology & oncology physician with a practice address in Frederick, Maryland, and NPI 1194898791, issued on Nov 15, 2006. Check the license (Maryland D0067442, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1194898791
Name
Yun W. Oh
Credential
M.D.
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
D0067442 MD
Self-reported in NPPES; status is on the state search
Practice location
46B Thomas Johnson Dr Suite 200, Frederick, MD 21702
Phone
(301) 695-6777
Enumerated
Nov 15, 2006
Record last updated
Jan 23, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(301) 695-4852
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 Yun W. Oh in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D0067442
    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

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90% fewer Medicare Part D claims than the average hematology & oncology physician in 2024

89 Medicare Part D claims for 44 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims.

  1. Yun Oh89
  2. Specialty average877

Most prescribed

  1. Xarelto12 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): 80.3 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 score79.3
  2. Costout of 100 · 30%54.9
  3. Promoting interoperabilityout of 100 · 25%100.0
  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).

Yun W. Oh among 317 hematology & oncology physician records in Maryland

Yun W. Oh, M.D. is one of 317 hematology & oncology physician records with a practice address in Maryland. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.

  • NPI issued2006 · 9% of these records are older, 58% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileNo · 58% of these records are
  • Record last updated2012 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in Maryland

There are 317 hematology & oncology physician records in Maryland.

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Oscar Raymond Bascug, DOFrederick, MD 217021417484627
  2. Mouhamad Bazzi, MDFrederick, MD 217021265619878
  3. Kenneth Bertram, MDFrederick, MD 217021336227628
  4. Amr Hegazi, MDFrederick, MD 217021366443152
  5. Andrew Li, MDFrederick, MD 217021780189704
  6. Dongyan Liu, M.D.Frederick, MD 217021912391913
  7. Natalia Marina, M.D.Frederick, MD 217021891134466
  8. Saro Sarkisian, M.D.Frederick, MD 217021164735387

Common questions

What is Yun W. Oh, M.D.'s NPI number?

Yun W. Oh, M.D.'s National Provider Identifier (NPI) is 1194898791, issued on Nov 15, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Yun W. Oh, M.D. located?

The NPPES record lists a practice address at 46B Thomas Johnson Dr Suite 200, Frederick, MD, 21702. Phone: (301) 695-6777. Providers update this record themselves, so call before visiting.

How can I verify Yun W. Oh, M.D.'s license?

NPPES lists Maryland license number D0067442, 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 Yun W. Oh, M.D. prescribe under Medicare Part D?

In 2024, Yun W. Oh, M.D. had 89 Medicare Part D claims for 44 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.

What is Yun W. Oh, M.D.'s MIPS final score?

The 2023 MIPS final score is 80.3 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.