Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ronald J Ruff, M.D.

Diagnostic Radiology Physician in Murray, UT · enumerated 2006 · practices at Mountain Medical Physician Specialists PC.

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

National Provider Identifier

1740220755

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Registry record

Entity type Individual (Type 1)

Name Ronald J Ruff

Credential M.D.

Sex Male

Practice address 5334 S Woodrow St Ste 100, Murray, UT, 84107

Phone (801) 713-0600

Fax (801) 713-0601

Enumeration date Jun 7, 2006

Last updated in NPPES Apr 28, 2026

Taxonomy & licenses

2085R0204X Vascular & Interventional Radiology Physician Allopathic & Osteopathic Physicians · License 168937-1205 (UT) Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License M-8435 (ID) Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 168937-1205 (UT) 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
07250	Medicaid	UT	-

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 this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Ronald Ruff?

Ronald Ruff is registered in NPPES with the primary taxonomy of Diagnostic Radiology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-28.