Benjamin McMahon, MD
Psychiatry Physician · Washington, DC
Benjamin McMahon, MD is a psychiatry physician with a practice address in Washington, District of Columbia, and NPI 1639865421, issued on Apr 13, 2023. Check the license (District of Columbia MD600001876, as entered in NPPES) on the District of Columbia Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Benjamin McMahon
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- MD600001876 DC
Self-reported in NPPES; status is on the state search - Practice location
- 2150 Pennsylvania Ave NW, Washington, DC 20037
- Phone
- (202) 741-3000
- Enumerated
- Apr 13, 2023
- Record last updated
- Oct 17, 2024
- Medicare enrollment
- Enrolled (PECOS I20241105001327); accepts Medicare assignment
- Medical or professional school
- Tulane University School Of Medicine, 2023
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 474 in District of Columbia → Look up another NPI →
Also registered at 2150 Pennsylvania Ave NW
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Benjamin McMahon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDistrict of Columbia Board of Medicine
Search for license MD600001876Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average psychiatry physician in 2024
36 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Bills Medicare through one group practice
- Wisconsin Ave Psychiatric Center IncWashington, DC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Benjamin McMahon among 474 psychiatry physician records in District of Columbia
Benjamin McMahon, MD is one of 474 psychiatry physician records with a practice address in District of Columbia. 58% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 95% of them.
- NPI issued2023 · 95% of these records are older, 3% newer
- In a Medicare fileYes · 58% of these records are
- In the CMS Doctors and Clinicians fileYes · 26% of these records are
- Graduated2023 · median 2005 among the 124 with a school on file
- Record last updated2024 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X 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).
467 psychiatry physician records list a practice address in Washington
They are 467 of the 45,857 NPPES records with a practice address in Washington, and 474 psychiatry physician records in District of Columbia.
All 474 in District of Columbia → Every provider in Washington → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Jeffrey Akman, MDWashington, DC 200371811961691
- Benedicto Borja, M.D.Washington, DC 200371891716940
- Morris Chalick, M.D.Washington, DC 200371114949633
- Todd Cox, M.D.Washington, DC 200371770683369
- Sinan Duzyurek, M.D.Washington, DC 200371730198201
- Natalia Eisenberg, MDWashington, DC 200371790742419
- Lynne Gaby, MDWashington, DC 200371902870777
- Katina Hatten, MDWashington, DC 200371437210895
Common questions
What is Benjamin McMahon, MD's NPI number?
Benjamin McMahon, MD's National Provider Identifier (NPI) is 1639865421, issued on Apr 13, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Benjamin McMahon, MD located?
The NPPES record lists a practice address at 2150 Pennsylvania Ave NW, Washington, DC, 20037. Phone: (202) 741-3000. Providers update this record themselves, so call before visiting.
How can I verify Benjamin McMahon, MD's license?
NPPES lists District of Columbia license number MD600001876, 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 Benjamin McMahon, MD prescribe under Medicare Part D?
In 2024, Benjamin McMahon, MD had 36 Medicare Part D claims; the average among psychiatry physician prescribers was 1,000. 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.