Barnett S. Kramer, M.D.
Hematology & Oncology Physician · Rockville, MD
Barnett S. Kramer, M.D. is a hematology & oncology physician with a practice address in Rockville, Maryland, and NPI 1992821557, issued on Mar 22, 2007. Check the license (Maryland D0019932, as entered in NPPES) on the Maryland Board of Physicians; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Barnett S. Kramer
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- D0019932 MD
Self-reported in NPPES; status is on the state search - Practice location
- 6100 Executive Blvd, Rockville, MD 20852
- Phone
- (301) 496-1508
- Enumerated
- Mar 22, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (301) 480-7660
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 317 in Maryland → Look up another NPI →
Also registered at 6100 Executive Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Daniel Singer, M.D., M.P.H.Internal Medicine Physician1639309818
- Michael Weinrich, M.D.Neurology Physician1649302191
Verify Barnett S. Kramer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0019932Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Barnett S. Kramer among 317 hematology & oncology physician records in Maryland
Barnett S. Kramer, 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 not. Its NPI, issued in 2007, is newer than 42% of them.
- NPI issued2007 · 42% of these records are older, 44% newer
- In a Medicare fileNo · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- Record last updated2007 · 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. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 317 in Maryland → Every provider in Rockville → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Peter Bross, M.D.Rockville, MD 208521043305386
- Bindu George, MDRockville, MD 208521619978400
- Nelson Kalil, M.D.Rockville, MD 208521427074707
- Ronald Lieberman, M.D.Rockville, MD 208521306035662
- James Xu, M.D.Rockville, MD 208521104003342
- Farah Zia, MDRockville, MD 208521407011729
- Manish Agrawal, M.D.Rockville, MD 208501275614984
- Lisa Arsenault, PARockville, MD 208501841427804
Common questions
What is Barnett S. Kramer, M.D.'s NPI number?
Barnett S. Kramer, M.D.'s National Provider Identifier (NPI) is 1992821557, issued on Mar 22, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Barnett S. Kramer, M.D. located?
The NPPES record lists a practice address at 6100 Executive Blvd, Rockville, MD, 20852. Phone: (301) 496-1508. Providers update this record themselves, so call before visiting.
How can I verify Barnett S. Kramer, M.D.'s license?
NPPES lists Maryland license number D0019932, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.