Karen Grace Zeman, MD
Hematology & Oncology Physician · Bethesda, MD
Karen Grace Zeman, MD is a hematology & oncology physician with a practice address in Bethesda, Maryland, and NPI 1518195965, issued on Jun 24, 2009. Check the license on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Karen Grace Zeman
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 0101248000 VA
Self-reported in NPPES; status is on the state search - Practice location
- National Naval Medical Ctr, Bethesda, MD 20889
- Phone
- (301) 319-4790
- Enumerated
- Jun 24, 2009
- Record last updated
- Feb 15, 2024
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 317 in Maryland → Look up another NPI →
Also registered at National Naval Medical Ctr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Karen Grace Zeman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of PhysiciansCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $703.16
26 payments; by number, the most common kind was food and beverage; the largest payer was Genzyme Corporation. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Karen Grace Zeman among 317 hematology & oncology physician records in Maryland
Karen Grace Zeman, MD 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 2009, is newer than 63% of them.
- NPI issued2009 · 63% of these records are older, 32% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- Record last updated2024 · 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.
All 317 in Maryland → Every provider in Bethesda → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Wendy Bernstein, MDBethesda, MD 208891679548432
- Gideon Blumenthal, M.D.Bethesda, MD 208891427242635
- Corey Carter, M.D.Bethesda, MD 208891831162833
- Alden Chiu, MDBethesda, MD 208891992894067
- James Driscoll, MDBethesda, MD 208891801081096
- J. Hamilton, M.D.Bethesda, MD 208891649386129
- Erin Larkins, MDBethesda, MD 208891386724532
- Dean Park, MDBethesda, MD 208891205983004
Common questions
What is Karen Grace Zeman, MD's NPI number?
Karen Grace Zeman, MD's National Provider Identifier (NPI) is 1518195965, issued on Jun 24, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Karen Grace Zeman, MD located?
The NPPES record lists a practice address at National Naval Medical Ctr, Bethesda, MD, 20889. Phone: (301) 319-4790. Providers update this record themselves, so call before visiting.
How can I verify Karen Grace Zeman, MD's license?
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.
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.