Alan Mendelsohn, MD
NPI 1891916110 · Developmental - Behavioral Pediatrics Physician · New York, NY
Enrolled with Medicare as Order and Referring Only - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alan Mendelsohn, MD is a Developmental - Behavioral Pediatrics Physician provider in New York, NY (NPI 1891916110).
Provider details
- NPI number
- 1891916110
- Entity type
- Individual
- Primary specialty
- Developmental - Behavioral Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 187673 (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
- 2007-05-02
- Last updated
- 2007-07-08
Frequently asked questions
- What is Alan Mendelsohn's NPI number?
- Alan Mendelsohn's National Provider Identifier (NPI) is 1891916110, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alan Mendelsohn's specialty?
- Alan Mendelsohn is listed in the NPPES registry with a primary specialty of Developmental - Behavioral Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Alan Mendelsohn located?
- Alan Mendelsohn's practice location on file with NPPES is 550 1st Ave, New York, NY 10016-6402.
- What is Alan Mendelsohn's phone number?
- The practice phone number listed in the NPPES registry for Alan Mendelsohn is (212) 562-6342.
- Does Alan Mendelsohn accept Medicare?
- Alan Mendelsohn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alan Mendelsohn's NPI active?
- Yes — Alan Mendelsohn's NPI (1891916110) 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.