IndividualActive
Robert Grossman, M.D.
NPI 1801963913 · Internal Medicine Physician · Danbury, CT
Robert Grossman, M.D. is a Internal Medicine Physician provider in Danbury, CT (NPI 1801963913).
Provider details
- NPI number
- 1801963913
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 43879 (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
24 Hospital Ave
Danbury, CT 06810-6099
Phone: (203) 739-6959
Street-level locationGet directions
Mailing address
24 Hospital Ave
Danbury, CT 06810-6099
Registry dates
- Enumerated
- 2006-11-30
- Last updated
- 2007-07-08
Frequently asked questions
- What is Robert Grossman's NPI number?
- Robert Grossman's National Provider Identifier (NPI) is 1801963913, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Grossman's specialty?
- Robert Grossman is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Grossman located?
- Robert Grossman's practice location on file with NPPES is 24 Hospital Ave, Danbury, CT 06810-6099.
- What is Robert Grossman's phone number?
- The practice phone number listed in the NPPES registry for Robert Grossman is (203) 739-6959.
- Is Robert Grossman's NPI active?
- Yes — Robert Grossman's NPI (1801963913) 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.