What is Isabel Fay's NPI number?

Isabel Fay's National Provider Identifier (NPI) is 1619608254, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Isabel Fay's specialty?

Isabel Fay is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).

Where is Isabel Fay located?

Isabel Fay's practice location on file with NPPES is 15 S Flagg St, Worcester, MA 01602-1821.

What is Isabel Fay's phone number?

The practice phone number listed in the NPPES registry for Isabel Fay is (973) 865-7202.

Is Isabel Fay's NPI active?

Yes — Isabel Fay's NPI (1619608254) is active in the NPPES registry as of the last update on 2026-04-16.

IndividualActive

Isabel Fay, RD

NPI 1619608254 · Registered Dietitian · Worcester, MA

Isabel Fay, RD is a Registered Dietitian provider in Worcester, MA (NPI 1619608254).

Provider details

NPI number: 1619608254
Entity type: Individual
Primary specialty: Registered DietitianDietary & Nutritional Service Providers
Credential: RD
Sex: Female
Sole proprietor: No
License: 5502-NU-NI (MA)

Specialties & taxonomies

Registered DietitianPrimary133V00000XLicense 5502-NU-NI (MA)
Dietary & Nutritional Service Providers

Profile Score

Established profile(60/100 index)

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

Registry tenure38% of score
4 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

15 S Flagg St

Worcester, MA 01602-1821

Phone: (973) 865-7202

Street-level locationGet directions

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Mailing address