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Gregory Sullivan, M.D.
NPI 1457437493 · Psychiatry Physician · New York, NY
Gregory Sullivan, M.D. is a Psychiatry Physician provider in New York, NY (NPI 1457437493).
Provider details
- NPI number
- 1457437493
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 198732 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
617 West End Ave
Suite 1b
New York, NY 10024-1607
Phone: (212) 579-0339
Fax: (212) 543-5437
Street-level locationGet directions
Mailing address
617 West End Ave
New York, NY 10024-1607
Registry dates
- Enumerated
- 2006-10-31
- Last updated
- 2007-07-08
Frequently asked questions
- What is Gregory Sullivan's NPI number?
- Gregory Sullivan's National Provider Identifier (NPI) is 1457437493, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Sullivan's specialty?
- Gregory Sullivan is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Sullivan located?
- Gregory Sullivan's practice location on file with NPPES is 617 West End Ave, New York, NY 10024-1607.
- What is Gregory Sullivan's phone number?
- The practice phone number listed in the NPPES registry for Gregory Sullivan is (212) 579-0339.
- Is Gregory Sullivan's NPI active?
- Yes — Gregory Sullivan's NPI (1457437493) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.