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Nelson Bonheim, MD
NPI 1366514549 · Gastroenterology Physician · Greenwich, CT
Nelson Bonheim, MD is a Gastroenterology Physician provider in Greenwich, CT (NPI 1366514549).
Provider details
- NPI number
- 1366514549
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 017080 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
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
500 W Putnam Ave
Suite 100
Greenwich, CT 06830-6086
Phone: (203) 863-2900
Fax: (203) 863-2901
Street-level locationGet directions
Mailing address
500 W Putnam Ave
Greenwich, CT 06830-6086
Registry dates
- Enumerated
- 2006-11-14
- Last updated
- 2010-09-24
Frequently asked questions
- What is Nelson Bonheim's NPI number?
- Nelson Bonheim's National Provider Identifier (NPI) is 1366514549, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nelson Bonheim's specialty?
- Nelson Bonheim is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Nelson Bonheim located?
- Nelson Bonheim's practice location on file with NPPES is 500 W Putnam Ave, Greenwich, CT 06830-6086.
- What is Nelson Bonheim's phone number?
- The practice phone number listed in the NPPES registry for Nelson Bonheim is (203) 863-2900.
- Is Nelson Bonheim's NPI active?
- Yes — Nelson Bonheim's NPI (1366514549) is active in the NPPES registry as of the last update on 2010-09-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.