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

MARIAH ELIZABETH DIAZ CPNP
NPI 1285541201
Nurse Practitioner - Pediatrics in Cambridge, MA

Q: What is Mariah Diaz's NPI number?

The NPI number for Mariah Diaz is 1285541201. It was assigned to this individual provider in the NPPES registry on August 25, 2026.

Q: What is Mariah Diaz's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Pediatrics, with taxonomy code 363LP0200X.

Q: When was this NPI record last updated?

The NPPES record for Mariah Diaz was last updated on August 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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 August 25, 2026

205 MOUNT AUBURN ST APT 1A, CAMBRIDGE, MA 02138(484) 553-1005 Get Directions Write a Review

NPPES record added: August 25, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

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About Mariah Elizabeth Diaz Cpnp NPPES

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

MARIAH ELIZABETH DIAZ CPNP (NPI 1285541201) is an individual pediatrics provider in Cambridge, Massachusetts, licensed in Massachusetts (10008956) and active in the NPI registry since August 2026.

NPPES Registry Identity

NPI1285541201

Entity TypeIndividualFemale

Primary Taxonomy363LP0200X

Provider Legal NameMARIAH ELIZABETH DIAZCredential: CPNP

Location Address205 MOUNT AUBURN ST APT 1ACambridge, MA 02138-4880

Mailing Address205 Mount Auburn St Apt 1aCambridge, MA 02138-4880 · (484) 553-1005

Phone(484) 553-1005

Sole ProprietorNo

Enumeration DateAugust 25, 2026

NPPES CertifiedAugust 25, 2026

✔ NPI 1285541201 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

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

Taxonomy Code363LP0200X

License✔ Licensed in MA · 10008956

205 MOUNT AUBURN ST APT 1A, Cambridge, MA 02138

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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 Mariah Diaz's NPI number?

The NPI number for Mariah Diaz is 1285541201. It was assigned to this individual provider in the NPPES registry on August 25, 2026.

Where is Mariah Diaz located?

Mariah Diaz practices at 205 Mount Auburn St Apt 1A, Cambridge, MA 02138. The listed phone number is (484) 553-1005.

What is Mariah Diaz's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Pediatrics, with taxonomy code 363LP0200X.

When was this NPI record last updated?

The NPPES record for Mariah Diaz was last updated on August 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.