Gregory K. Kumkumian, M.D.
Clinical & Laboratory Immunology (Internal Medicine) Physician · Bethesda, MD
Gregory K. Kumkumian, M.D. is a clinical & laboratory immunology (internal medicine) physician with a practice address in Bethesda, Maryland, and NPI 1851336200, issued on Jun 19, 2006. Check the license (Maryland D0057032, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Gregory K. Kumkumian
- Credential
- M.D.
- Primary taxonomy
- Clinical & Laboratory Immunology (Internal Medicine) Physician 207RI0001X
- License number
- D0057032 MD
Self-reported in NPPES; status is on the state search - Practice location
- 6410 Rockledge Drive, Bethesda, MD 20817
- Phone
- (301) 897-5301
- Enumerated
- Jun 19, 2006
- Record last updated
- May 9, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (301) 897-9589
- Medicaid ID
- 809000900 MD
- Medicare enrollment
- Enrolled (PECOS I20040728000350); accepts Medicare assignment
- Medical or professional school
- George Washington University School Of Medicine, 1994
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
1 nearest clinical & laboratory immunology (internal medicine) physician record → All 2 in Maryland → Look up another NPI →
Also registered at 6410 Rockledge Drive
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Gregory K. Kumkumian in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0057032Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.1 times the Medicare Part D claims of the average clinical & laboratory immunology (internal medicine) physician in 2024
3,284 Medicare Part D claims for 534 beneficiaries, against an average of 1,540 among the 8 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Atorvastatin Calcium364 claims
- Metoprolol Succinate357 claims
- Rosuvastatin Calcium270 claims
- Eliquis255 claims
- Losartan Potassium210 claims
- Amlodipine Besylate204 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): 86.8 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $816.83
5 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 6 providers of this specialty with any payment received $1,373.56 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.
Bills Medicare through one group practice
- Johns Hopkins Community Physicians, IncLaurel, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Clinical & Laboratory Immunology (Internal Medicine) Physician providers in Maryland
There are 2 clinical & laboratory immunology (internal medicine) physician records in Maryland.
All 2 in Maryland → Every provider in Bethesda → Clinical & Laboratory Immunology (Internal Medicine) Physician nationwide →
The 1 clinical & laboratory immunology (internal medicine) physician record with the nearest ZIP codes
- Michael Goldman, M.D.Baltimore, MD 212871437103892
Common questions
What is Gregory K. Kumkumian, M.D.'s NPI number?
Gregory K. Kumkumian, M.D.'s National Provider Identifier (NPI) is 1851336200, issued on Jun 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory K. Kumkumian, M.D. located?
The NPPES record lists a practice address at 6410 Rockledge Drive, Bethesda, MD, 20817. Phone: (301) 897-5301. Providers update this record themselves, so call before visiting.
How can I verify Gregory K. Kumkumian, M.D.'s license?
NPPES lists Maryland license number D0057032, 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 Gregory K. Kumkumian, M.D. prescribe under Medicare Part D?
In 2024, Gregory K. Kumkumian, M.D. had 3,284 Medicare Part D claims for 534 beneficiaries; the average among clinical & laboratory immunology (internal medicine) physician prescribers was 1,540. Part D covers Medicare prescriptions only.
What is Gregory K. Kumkumian, M.D.'s MIPS final score?
The 2023 MIPS final score is 86.8 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.