What is Robert Grossman's NPI number?

Robert Grossman's National Provider Identifier (NPI) is 1609940881, 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 Specialist (Other Service Providers).

Where is Robert Grossman located?

Robert Grossman's practice location on file with NPPES is 45 Mount Pleasant Rd, Newtown, CT 06470-1530.

What is Robert Grossman's phone number?

The practice phone number listed in the NPPES registry for Robert Grossman is (203) 426-0662.

Is Robert Grossman's NPI active?

Yes — Robert Grossman's NPI (1609940881) is active in the NPPES registry as of the last update on 2025-09-11.

IndividualActive

Robert Grossman

NPI 1609940881 · Specialist · Newtown, CT

Robert Grossman is a Specialist provider in Newtown, CT (NPI 1609940881).

Provider details

NPI number: 1609940881
Entity type: Individual
Primary specialty: SpecialistOther Service Providers
Sex: Male
Sole proprietor: Yes
License: 09602 (CT)

Specialties & taxonomies

SpecialistPrimary174400000XLicense 09602 (CT)
Other Service Providers
Surgery Physician208600000XLicense 09602 (CT)
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

45 Mount Pleasant Rd

Newtown, CT 06470-1530

Phone: (203) 426-0662

Street-level locationGet directions

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Mailing address