What is Gianna Gransasso's NPI number?

Gianna Gransasso's National Provider Identifier (NPI) is 1720918394, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Gianna Gransasso's specialty?

Gianna Gransasso is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).

Where is Gianna Gransasso located?

Gianna Gransasso's practice location on file with NPPES is 219 Springmeadow Dr Unit F, Holbrook, NY 11741-4124.

What is Gianna Gransasso's phone number?

The practice phone number listed in the NPPES registry for Gianna Gransasso is (631) 813-7810.

Is Gianna Gransasso's NPI active?

Yes — Gianna Gransasso's NPI (1720918394) is active in the NPPES registry as of the last update on 2026-05-22.

IndividualActive

Gianna Gransasso

NPI 1720918394 · Specialist · Holbrook, NY

Gianna Gransasso is a Specialist provider in Holbrook, NY (NPI 1720918394).

Provider details

NPI number: 1720918394
Entity type: Individual
Primary specialty: SpecialistOther Service Providers
Sex: Female
Sole proprietor: Yes

Specialties & taxonomies

SpecialistPrimary174400000X
Other Service Providers

Profile Score

Basic profile(46/100 index)

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

Registry tenure38% of score
Under 1 yr in registry
Profile completeness38% of score
83% 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

219 Springmeadow Dr Unit F

Holbrook, NY 11741-4124

Phone: (631) 813-7810

Street-level locationGet directions

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Mailing address