Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Katelyn Michelle Graff

Physician Assistant in Chester, MT · enumerated 2020.

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

National Provider Identifier

1528686631

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Registry record

Entity type Individual (Type 1)

Name Katelyn Michelle Graff

Sex Female

Practice address Chester, MT, 59522

Phone (406) 945-8055

Enumeration date Jul 6, 2020

Last updated in NPPES Jul 20, 2023

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA61360188 (WA) 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

Is NPI 1528686631 active?

Yes, as of the latest NPPES snapshot, NPI 1528686631 is active (record last updated 2023-07-20).

How do I verify Katelyn Graff's NPI record?

Cross-check NPI 1528686631 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-07-20.