Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Thomas F Ruhlen, M.D.

Anatomic Pathology & Clinical Pathology Physician in Sun City West, AZ · enumerated 2006.

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

National Provider Identifier

1508814336

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Registry record

Entity type Individual (Type 1)

Name Dr. Thomas F Ruhlen

Credential M.D.

Sex Male

Practice address 14502 W Meeker Blvd, Sun City West, AZ, 85375

Phone (602) 685-5211

Fax (602) 685-5325

Enumeration date May 4, 2006

Last updated in NPPES Aug 6, 2020

Taxonomy & licenses

207ZP0102X Anatomic Pathology & Clinical Pathology Physician Allopathic & Osteopathic Physicians · License 18577 (AZ) 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
1508814336	Other	-	NPI
AZ0182900	Other	AZ	BCBSAZ- PATH ASSOC
AZ0446480	Other	AZ	BCBSAZ-SUN CITY PATH
AX4478	Other	AZ	HEALTH NET AZ-PATH ASSOC
112071	Medicaid	AZ	-
30954	Other	AZ	AZ MEDICAL LICENSE

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 Thomas Ruhlen?

The National Provider Identifier (NPI) for Thomas Ruhlen is 1508814336, a Type 1 (individual) record in the CMS NPPES registry.

Where does Thomas Ruhlen practice?

The practice location on file with NPPES is in Sun City West, AZ. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-06.