Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Michael Sanford Lifson, M.D.

Gynecology Physician in Dillon, MT · enumerated 2006.

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

National Provider Identifier

1053423798

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Registry record

Entity type Individual (Type 1)

Name Dr. Michael Sanford Lifson

Credential M.D.

Sex Male

Practice address 30 Mt Highway 91 S, Dillon, MT, 59725

Phone (406) 683-3009

Fax (410) 832-5560

Enumeration date Aug 31, 2006

Last updated in NPPES Apr 13, 2026

Taxonomy & licenses

207VG0400X Gynecology Physician Allopathic & Osteopathic Physicians · License 10696 (MT) Primary

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

What is the NPI number for Michael Lifson?

The National Provider Identifier (NPI) for Michael Lifson is 1053423798, a Type 1 (individual) record in the CMS NPPES registry.

Where does Michael Lifson practice?

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

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