William Friedewald, M.D.
NPI 1245501030 · Internal Medicine Physician · New York, NY
William Friedewald, M.D. is a Internal Medicine Physician provider in New York, NY (NPI 1245501030).
Provider details
- NPI number
- 1245501030
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 180914 (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
14 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
- 2012-01-25
- Last updated
- 2012-01-25
Frequently asked questions
- What is William Friedewald's NPI number?
- William Friedewald's National Provider Identifier (NPI) is 1245501030, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Friedewald's specialty?
- William Friedewald is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Friedewald located?
- William Friedewald's practice location on file with NPPES is 722 W 168th St, New York, NY 10032-3727.
- What is William Friedewald's phone number?
- The practice phone number listed in the NPPES registry for William Friedewald is (212) 305-3017.
- Is William Friedewald's NPI active?
- Yes — William Friedewald's NPI (1245501030) is active in the NPPES registry as of the last update on 2012-01-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.