Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gwenn Santoro, M.D.

Pediatrics Physician in Tucson, AZ · enumerated 2017.

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

National Provider Identifier

1053847772

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Registry record

Entity type Individual (Type 1)

Name Gwenn Santoro

Credential M.D.

Sex Female

Practice address 1925 W Orange Grove Rd Ste 302, Tucson, AZ, 85704

Phone (520) 797-3888

Fax (520) 797-2196

Enumeration date May 2, 2017

Last updated in NPPES Dec 6, 2021

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 63219 (AZ) Primary

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 304857-01 (NY) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Gwenn Santoro's NPI record?

Cross-check NPI 1053847772 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1053847772 active?

Yes, as of the latest NPPES snapshot, NPI 1053847772 is active (record last updated 2021-12-06).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-06.