Gary Mazer, M.D.
NPI 1538337381 · Emergency Medicine Physician · New York, NY
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gary Mazer, M.D. is a Emergency Medicine Physician provider in New York, NY (NPI 1538337381).
Provider details
- NPI number
- 1538337381
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 236270 (NY)
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
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 210 Westchester AveWhite Plains, NY 10604-2901Phone: (844) 824-8963
Registry dates
- Enumerated
- 2008-02-14
- Last updated
- 2025-02-21
- Certified
- 2025-02-21
Frequently asked questions
- What is Gary Mazer's NPI number?
- Gary Mazer's National Provider Identifier (NPI) is 1538337381, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gary Mazer's specialty?
- Gary Mazer is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gary Mazer located?
- Gary Mazer's practice location on file with NPPES is 336 E 86th St, New York, NY 10028-4615.
- What is Gary Mazer's phone number?
- The practice phone number listed in the NPPES registry for Gary Mazer is (212) 772-3627.
- Does Gary Mazer accept Medicare?
- Gary Mazer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gary Mazer's NPI active?
- Yes — Gary Mazer's NPI (1538337381) is active in the NPPES registry as of the last update on 2025-02-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.