Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Watson Mark Gutowski, M.D., F.A.A.P., FACS

Otolaryngology Physician in Sidney, MT · enumerated 2006.

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

National Provider Identifier

1639256688

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Registry record

Entity type Individual (Type 1)

Name Dr. Watson Mark Gutowski

Credential M.D., F.A.A.P., FACS

Sex Male

Practice address 214 14th Ave Sw, Sidney, MT, 59270

Phone (406) 488-2100

Fax (406) 488-2261

Enumeration date Nov 1, 2006

Last updated in NPPES Apr 30, 2020

Taxonomy & licenses

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License 86559 (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.

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Frequently asked questions

How do I verify Watson Gutowski's NPI record?

Cross-check NPI 1639256688 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1639256688 active?

Yes, as of the latest NPPES snapshot, NPI 1639256688 is active (record last updated 2020-04-30).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-04-30.