Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Rosemary Carolyn Mattaino, DO

Anatomic Pathology & Clinical Pathology Physician in Palo Alto, CA · enumerated 2020 · practices at Lucile Packard Stanford Children'S Hospital.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1184251886

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Registry record

Entity type Individual (Type 1)

Name Dr. Rosemary Carolyn Mattaino

Credential DO

Sex Female

Practice address 300 Pasteur Dr, Palo Alto, CA, 94304

Phone (650) 723-4000

Enumeration date Mar 24, 2020

Last updated in NPPES Jun 12, 2025

Taxonomy & licenses

207ZP0102X Anatomic Pathology & Clinical Pathology Physician Allopathic & Osteopathic Physicians · License 20A22551 (CA) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

How do I verify Rosemary Mattaino's NPI record?

Cross-check NPI 1184251886 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1184251886 active?

Yes, as of the latest NPPES snapshot, NPI 1184251886 is active (record last updated 2025-06-12).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-06-12.