Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

PETER MAZZARO CNP
NPI 1922928233
Nurse Practitioner - Family in East Boston, MA

Q: What is Peter Mazzaro's NPI number?

The NPI number for Peter Mazzaro is 1922928233. It was assigned to this individual provider in the NPPES registry on July 16, 2026.

Q: What is Peter Mazzaro's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Q: When was this NPI record last updated?

The NPPES record for Peter Mazzaro was last updated on July 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 51 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since July 16, 2026

40 E PIER DR APT 2121, EAST BOSTON, MA 02128(207) 939-7950 Get Directions Write a Review

NPPES record added: July 16, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

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About Peter Mazzaro Cnp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

PETER MAZZARO CNP (NPI 1922928233) is an individual family provider in East Boston, Massachusetts, licensed in Massachusetts (RN10014711) and active in the NPI registry since July 2026.

NPPES Registry Identity

NPI1922928233

Entity TypeIndividualMale

Primary Taxonomy363LF0000X

Provider Legal NamePETER MAZZAROCredential: CNP

Location Address40 E PIER DR APT 2121East Boston, MA 02128-2946

Mailing Address40 E Pier Dr Apt 2121East Boston, MA 02128-2946 · (207) 939-7950

Phone(207) 939-7950

Sole ProprietorNo

Enumeration DateJuly 16, 2026

NPPES CertifiedJuly 12, 2026

✔ NPI 1922928233 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LF0000X

License✔ Licensed in MA · RN10014711

40 E PIER DR APT 2121, East Boston, MA 02128

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Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Peter Mazzaro's NPI number?

The NPI number for Peter Mazzaro is 1922928233. It was assigned to this individual provider in the NPPES registry on July 16, 2026.

Where is Peter Mazzaro located?

Peter Mazzaro practices at 40 E Pier Dr Apt 2121, East Boston, MA 02128. The listed phone number is (207) 939-7950.

What is Peter Mazzaro's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

When was this NPI record last updated?

The NPPES record for Peter Mazzaro was last updated on July 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 51 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.