Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Robert Yost-Arch Amrine, MD

Sports Medicine (Family Medicine) Physician in Missoula, MT · enumerated 2007.

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

National Provider Identifier

1366640484

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Registry record

Entity type Individual (Type 1)

Name Robert Yost-Arch Amrine

Credential MD

Sex Male

Practice address 2360 Mullan Rd Ste C, Missoula, MT, 59808

Phone (406) 721-4436

Fax (406) 721-6053

Enumeration date Jul 10, 2007

Last updated in NPPES Dec 2, 2019

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License MR-0925 (ID) Secondary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License M-10516 (ID) Secondary

207QS0010X Sports Medicine (Family Medicine) Physician Allopathic & Osteopathic Physicians · License 12629 (MT) Primary

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

Other identifiers

Identifier	Type	State	Issuer
807771700	Medicaid	ID	-
1196275	Other	ID	MEDICARE PTAN

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 Robert Amrine's NPI record?

Cross-check NPI 1366640484 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1366640484 active?

Yes, as of the latest NPPES snapshot, NPI 1366640484 is active (record last updated 2019-12-02).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-12-02.