Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Barbara Polstein, DO

Family Medicine Physician in Flagstaff, AZ · enumerated 2006.

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

National Provider Identifier

1316915069

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Registry record

Entity type Individual (Type 1)

Name Dr. Barbara Polstein

Credential DO

Sex Female

Practice address 824 S San Fransisco St, Bldg 25 Nau Campus, Flagstaff, AZ, 86011

Phone (928) 523-2131

Fax (928) 523-1102

Enumeration date Mar 9, 2006

Last updated in NPPES Mar 22, 2021

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 3437 (AZ) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Barbara Polstein practice?

The practice location on file with NPPES is in Flagstaff, AZ. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Barbara Polstein?

The National Provider Identifier (NPI) for Barbara Polstein is 1316915069, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-03-22.