NPI Portal NPI Lookup & Verification

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

Dr. Mark D. Winton, M.D.

Infectious Disease Physician in Bozeman, MT · enumerated 2005.

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

National Provider Identifier

1316943673

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Registry record

Entity type Individual (Type 1)
Name Dr. Mark D. Winton
Credential M.D.
Sex Male
Practice address Bozeman, MT, 59715
Enumeration date Jun 22, 2005
Last updated in NPPES May 21, 2018

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

Taxonomy & licenses

207RI0200X Infectious Disease Physician Allopathic & Osteopathic Physicians · License 36530 (MO) Secondary
207RI0200X Infectious Disease Physician Allopathic & Osteopathic Physicians · License 11649 (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
127617 Other MO GROUP HEALTH PLANS
24081 Other MO BLUE CROSS BLUE SHIELD
202030003 Other MO MISSOURI CARE
2443 Other MO HEALTHCARE USA
9204000 Other MO UNITED HEALTHCARE
470872293 Other MO TRICARE
A10703 Other MS MERCY
440003884 Other MO RAILROAD MEDICARE
202030003 Medicaid MO -
176373 Other MO HEALTHLINK

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

Is NPI 1316943673 active?
Yes, as of the latest NPPES snapshot, NPI 1316943673 is active (record last updated 2018-05-21).
How do I verify Mark Winton's NPI record?
Cross-check NPI 1316943673 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-05-21.