Ross Hammerman
NPI 1396086930 · Obstetrics & Gynecology Physician · New York, NY
Ross Hammerman is a Obstetrics & Gynecology Physician provider in New York, NY (NPI 1396086930).
Provider details
- NPI number
- 1396086930
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- Yes
- License
- 204592 (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
13 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
- 2013-03-06
- Last updated
- 2013-03-06
Frequently asked questions
- What is Ross Hammerman's NPI number?
- Ross Hammerman's National Provider Identifier (NPI) is 1396086930, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ross Hammerman's specialty?
- Ross Hammerman is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Ross Hammerman located?
- Ross Hammerman's practice location on file with NPPES is 1175 York Ave, New York, NY 10065-7169.
- What is Ross Hammerman's phone number?
- The practice phone number listed in the NPPES registry for Ross Hammerman is (212) 980-7990.
- Is Ross Hammerman's NPI active?
- Yes — Ross Hammerman's NPI (1396086930) is active in the NPPES registry as of the last update on 2013-03-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.