Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Bryan K Flagg Jr.

Q: What is the NPI number for Bryan Flagg?

The National Provider Identifier (NPI) for Bryan Flagg is 1265129597, a Type 1 (individual) record in the CMS NPPES registry.

Peer Specialist in Rochester, NY · enumerated 2023 · practices at Families & Friends of the Mentally Ill.

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

National Provider Identifier

1265129597

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Registry record

Entity type Individual (Type 1)

Name Mr. Bryan K Flagg Jr.

Sex Male

Practice address 320 N Goodman St, Rochester, NY, 14607

Phone (585) 325-3145

Fax (585) 325-3188

Enumeration date Apr 18, 2023

Last updated in NPPES Apr 18, 2023

Taxonomy & licenses

175T00000X Peer Specialist Other Service Providers Primary

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 Bryan Flagg practice?

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

What is the NPI number for Bryan Flagg?

The National Provider Identifier (NPI) for Bryan Flagg is 1265129597, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-04-18.