Ralf Zimmermann, MD
NPI 1790846699 · Reproductive Endocrinology Physician · New York, NY
Ralf Zimmermann, MD is a Reproductive Endocrinology Physician provider in New York, NY (NPI 1790846699).
Provider details
- NPI number
- 1790846699
- Entity type
- Individual
- Primary specialty
- Reproductive Endocrinology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 1968831 (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
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
Mailing address
Registry dates
- Enumerated
- 2006-12-13
- Last updated
- 2007-07-08
Frequently asked questions
- What is Ralf Zimmermann's NPI number?
- Ralf Zimmermann's National Provider Identifier (NPI) is 1790846699, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ralf Zimmermann's specialty?
- Ralf Zimmermann is listed in the NPPES registry with a primary specialty of Reproductive Endocrinology Physician (Allopathic & Osteopathic Physicians).
- Where is Ralf Zimmermann located?
- Ralf Zimmermann's practice location on file with NPPES is 1790 Broadway, New York, NY 10019-1412.
- What is Ralf Zimmermann's phone number?
- The practice phone number listed in the NPPES registry for Ralf Zimmermann is (646) 756-8282.
- Is Ralf Zimmermann's NPI active?
- Yes — Ralf Zimmermann's NPI (1790846699) 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.