Brian P. Monahan, MD
Hematology & Oncology Physician · Washington, DC
Brian P. Monahan, MD is a hematology & oncology physician with a practice address in Washington, District of Columbia, and NPI 1912908120, issued on Aug 10, 2005. Check the license (District of Columbia MD039017, as entered in NPPES) on the District of Columbia Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Brian P. Monahan
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License numbers
- MD039017 DC
D0035835 MD
Self-reported in NPPES; status is on the state search - Practice location
- United States Congress H-166 US Capitol, Washington, DC 20515
- Phone
- (202) 225-5421
- Enumerated
- Aug 10, 2005
- Record last updated
- Nov 10, 2023
- Fax
- (202) 225-3396
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 81 in District of Columbia → Look up another NPI →
Verify Brian P. Monahan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDistrict of Columbia Board of Medicine
Search for license MD039017Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
67 Medicare Part D claims for 15 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D.
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.
Brian P. Monahan among 81 hematology & oncology physician records in District of Columbia
Brian P. Monahan, MD is one of 81 hematology & oncology physician records with a practice address in District of Columbia. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 88% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2023 · 70% 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 District of Columbia 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 District of Columbia
There are 81 hematology & oncology physician records in District of Columbia.
All 81 in District of Columbia → Every provider in Washington → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Anthony Arcenas, M.D.Washington, DC 204221821109547
- Joao Ascensao, M.D., PH.D.Washington, DC 204221144311143
- Maneesh Jain, M.D.Washington, DC 204221649447558
- Nancy Scher, M.D.Washington, DC 204221487746848
- Michael Doukas, M.D., M.P.A.Washington, DC 204201407968829
- Christopher Gallagher, M.D.Washington, DC 203071467430579
- Ahmed Ali, MDWashington, DC 200601275896318
- Mukhtar Hassan, MDWashington, DC 200601609929066
Common questions
What is Brian P. Monahan, MD's NPI number?
Brian P. Monahan, MD's National Provider Identifier (NPI) is 1912908120, issued on Aug 10, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Brian P. Monahan, MD located?
The NPPES record lists a practice address at United States Congress H-166 US Capitol, Washington, DC, 20515. Phone: (202) 225-5421. Providers update this record themselves, so call before visiting.
How can I verify Brian P. Monahan, MD's license?
NPPES lists District of Columbia license number MD039017, as entered by the provider. Search the District of Columbia Board of Medicine at https://dchealth.dc.gov/bomed. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Brian P. Monahan, MD prescribe under Medicare Part D?
In 2024, Brian P. Monahan, MD had 67 Medicare Part D claims for 15 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.