Nicholas James Mahan, MD
Psychiatry Physician · Brooklyn, NY
Nicholas James Mahan, MD is a psychiatry physician with a practice address in Brooklyn, New York, and NPI 1881157923, issued on Apr 6, 2019. Check the license on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Nicholas James Mahan
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- MD048694 DC
Self-reported in NPPES; status is on the state search - Practice location
- 920 48TH St, Brooklyn, NY 11219
- Phone
- (718) 283-1955
- Enumerated
- Apr 6, 2019
- Record last updated
- Aug 25, 2025
- Fax
- (718) 213-4126
- Medicare enrollment
- Enrolled (PECOS I20240730000262); accepts Medicare assignment
- Medical or professional school
- Kansas City University Of Physicians And Surgeons, 2019
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 6,589 in New York → Look up another NPI →
Also registered at 920 48TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Anzhelika Avshalumov, LCSWClinical Social Worker1861695272
- Emily Beaudoin, PHDStudent in an Organized Health Care Education/Training Program1790650067
- Lauren Becker, PSY. D.Clinical Child & Adolescent Psychologist1174804405
Verify Nicholas James Mahan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the ProfessionsCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average psychiatry physician in 2024
15 Medicare Part D claims, against an average of 1,000 among the 35,054 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.
Bills Medicare through one group practice
- Maimonides Department OF Psychiatry FppBrooklyn, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nicholas James Mahan among 6,589 psychiatry physician records in New York
Nicholas James Mahan, MD is one of 6,589 psychiatry physician records with a practice address in New York. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 88% of them.
- NPI issued2019 · 88% of these records are older, 9% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 39% of these records are
- Graduated2019 · median 2002 among the 2,559 with a school on file
- Record last updated2025 · 65% 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 New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
559 psychiatry physician records list a practice address in Brooklyn
They are 559 of the 64,057 NPPES records with a practice address in Brooklyn, and 6,589 psychiatry physician records in New York.
All 6,589 in New York → Every provider in Brooklyn → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Basilio CordobaBrooklyn, NY 112191053323550
- Erlinda Dalao-Gagan, MDBrooklyn, NY 112191336219450
- Gabriel Ghitan, MDBrooklyn, NY 112191720152069
- Luz Green, MDBrooklyn, NY 112191497825525
- Seyed Hashemi, M.D.Brooklyn, NY 112191922189950
- Jonathan HertzBrooklyn, NY 112191881747152
- Sofya Kagan, M.D.Brooklyn, NY 112191518041243
- Andrew Kolodny, MDBrooklyn, NY 112191164592192
Common questions
What is Nicholas James Mahan, MD's NPI number?
Nicholas James Mahan, MD's National Provider Identifier (NPI) is 1881157923, issued on Apr 6, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Nicholas James Mahan, MD located?
The NPPES record lists a practice address at 920 48TH St, Brooklyn, NY, 11219. Phone: (718) 283-1955. Providers update this record themselves, so call before visiting.
How can I verify Nicholas James Mahan, MD's license?
Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Nicholas James Mahan, MD prescribe under Medicare Part D?
In 2024, Nicholas James Mahan, MD had 15 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.