What is Vincent Defina's NPI number?

Vincent Defina's National Provider Identifier (NPI) is 1326350596, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Vincent Defina's specialty?

Vincent Defina is listed in the NPPES registry with a primary specialty of Dentist (Dental Providers).

Where is Vincent Defina located?

Vincent Defina's practice location on file with NPPES is 4 Dearfield Dr, Greenwich, CT 06831-5351.

What is Vincent Defina's phone number?

The practice phone number listed in the NPPES registry for Vincent Defina is (203) 629-9009.

Does Vincent Defina accept Medicare?

Vincent Defina is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Vincent Defina's NPI active?

Yes — Vincent Defina's NPI (1326350596) is active in the NPPES registry as of the last update on 2011-10-24.

IndividualActiveAccepts Medicare

Vincent Defina, DMD

NPI 1326350596 · Dentist · Greenwich, CT

Vincent Defina, DMD is a Dentist provider in Greenwich, CT (NPI 1326350596).

Provider details

NPI number: 1326350596
Entity type: Individual
Primary specialty: DentistDental Providers
Credential: DMD
Sex: Male
Sole proprietor: Yes
License: 010457 (CT)

Practice location

4 Dearfield Dr

Suite 202

Greenwich, CT 06831-5351

Phone: (203) 629-9009

Fax: (203) 629-0039

Street-level locationGet directions

More CT providers

Mailing address

4 Dearfield Dr

Greenwich, CT 06831-5351

Specialties & taxonomies

DentistPrimary122300000XLicense 010457 (CT)
Dental Providers

Enrolled with Medicare as Order and Referring Only - Dentist · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Detailed profile(84/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
16 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.

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.

Drug	Part D claims (2024)	Beneficiaries
Amoxicillin	16	13

Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do not include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.

Enumerated: 2010-07-05
Last updated: 2011-10-24

Frequently asked questions

What is Vincent Defina's NPI number?: Vincent Defina's National Provider Identifier (NPI) is 1326350596, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Vincent Defina's specialty?: Vincent Defina is listed in the NPPES registry with a primary specialty of Dentist (Dental Providers).
Where is Vincent Defina located?: Vincent Defina's practice location on file with NPPES is 4 Dearfield Dr, Greenwich, CT 06831-5351.
What is Vincent Defina's phone number?: The practice phone number listed in the NPPES registry for Vincent Defina is (203) 629-9009.
Does Vincent Defina accept Medicare?: Vincent Defina is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Vincent Defina's NPI active?: Yes — Vincent Defina's NPI (1326350596) is active in the NPPES registry as of the last update on 2011-10-24.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

What this provider prescribes (Medicare Part D)

Registry dates

Frequently asked questions

Specialties & taxonomies

Profile Score

What this provider prescribes (Medicare Part D)

Frequently asked questions