Michael Nathanson, MD
NPI 1437132230 · Gastroenterology Physician · New Haven, CT
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Nathanson, MD is a Gastroenterology Physician provider in New Haven, CT (NPI 1437132230).
Provider details
- NPI number
- 1437132230
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 029365 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 4805 Nw 2nd AveBoca Raton, FL 33431-4141Phone: (561) 961-0208
Registry dates
- Enumerated
- 2005-11-25
- Last updated
- 2026-04-02
- Certified
- 2026-04-02
Frequently asked questions
- What is Michael Nathanson's NPI number?
- Michael Nathanson's National Provider Identifier (NPI) is 1437132230, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Nathanson's specialty?
- Michael Nathanson is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Nathanson located?
- Michael Nathanson's practice location on file with NPPES is 15 York St, New Haven, CT 06510-3221.
- What is Michael Nathanson's phone number?
- The practice phone number listed in the NPPES registry for Michael Nathanson is (203) 785-4138.
- Does Michael Nathanson accept Medicare?
- Michael Nathanson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Nathanson's NPI active?
- Yes — Michael Nathanson's NPI (1437132230) is active in the NPPES registry as of the last update on 2026-04-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.