Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Wyoming Cancer Specialists LLC

Medical Oncology Physician in Rock Springs, WY · enumerated 2007 · authorized official Keith Mills, Owner.

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

National Provider Identifier

1003952821

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Registry record

Entity type Organization (Type 2)

Legal business name Wyoming Cancer Specialists LLC

Practice address 400 2nd St, Suite D, Rock Springs, WY, 82901

Phone (307) 382-5116

Fax (307) 382-5118

Enumeration date Jan 29, 2007

Last updated in NPPES Nov 6, 2008

Taxonomy & classification

207RX0202X Medical Oncology Physician Allopathic & Osteopathic Physicians · License 6639A (WY) Primary

Authorized official

Name Keith Mills

Title Owner

Phone (307) 382-5116

Other identifiers

Identifier	Type	State	Issuer
122649500	Medicaid	WY	-
05922001	Other	WY	BCBS

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 current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2008-11-06. Verify at npiregistry.cms.hhs.gov.

Where is Wyoming Cancer Specialists LLC located?

The practice location on file with NPPES is in Rock Springs, WY.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-11-06.