Nicholas Mahan, MD
NPI 1881157923 · Psychiatry Physician · Brooklyn, NY
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nicholas Mahan, MD is a Psychiatry Physician provider in Brooklyn, NY (NPI 1881157923).
Provider details
- NPI number
- 1881157923
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD048694 (DC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-04-06
- Last updated
- 2025-08-25
- Certified
- 2025-08-25
Frequently asked questions
- What is Nicholas Mahan's NPI number?
- Nicholas Mahan's National Provider Identifier (NPI) is 1881157923, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nicholas Mahan's specialty?
- Nicholas Mahan is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Nicholas Mahan located?
- Nicholas Mahan's practice location on file with NPPES is 920 48th St, Brooklyn, NY 11219-2918.
- What is Nicholas Mahan's phone number?
- The practice phone number listed in the NPPES registry for Nicholas Mahan is (718) 283-1955.
- Does Nicholas Mahan accept Medicare?
- Nicholas Mahan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nicholas Mahan's NPI active?
- Yes — Nicholas Mahan's NPI (1881157923) is active in the NPPES registry as of the last update on 2025-08-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.