What is Katelyn Mazzaro's NPI number?

Katelyn Mazzaro's National Provider Identifier (NPI) is 1407708928, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Katelyn Mazzaro's specialty?

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

Where is Katelyn Mazzaro located?

Katelyn Mazzaro's practice location on file with NPPES is 41 Parnell Dr, Smithtown, NY 11787-2427.

What is Katelyn Mazzaro's phone number?

The practice phone number listed in the NPPES registry for Katelyn Mazzaro is (516) 477-8837.

Is Katelyn Mazzaro's NPI active?

Yes — Katelyn Mazzaro's NPI (1407708928) is active in the NPPES registry as of the last update on 2026-02-10.

IndividualActive

Katelyn Mazzaro

NPI 1407708928 · Specialist · Smithtown, NY

Katelyn Mazzaro is a Specialist provider in Smithtown, NY (NPI 1407708928).

Provider details

NPI number: 1407708928
Entity type: Individual
Primary specialty: SpecialistOther Service Providers
Sex: Female
Sole proprietor: No
License: 2764627

Specialties & taxonomies

SpecialistPrimary174400000XLicense 2764627
Other Service Providers

Profile Score

Established profile(53/100 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
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

41 Parnell Dr

Smithtown, NY 11787-2427

Phone: (516) 477-8837

Street-level locationGet directions

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Mailing address