Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William R Friese, MD

Surgery Physician in Glendale, AZ · enumerated 2005.

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

National Provider Identifier

1841299096

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Registry record

Entity type Individual (Type 1)

Name Dr. William R Friese

Credential MD

Sex Male

Practice address 5757 W Thunderbird Rd, Suite E265, Glendale, AZ, 85306

Phone (602) 843-8317

Fax (602) 843-9091

Enumeration date Jul 19, 2005

Last updated in NPPES Aug 5, 2015

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 29528 (AZ) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for William Friese?

The National Provider Identifier (NPI) for William Friese is 1841299096, a Type 1 (individual) record in the CMS NPPES registry.

Where does William Friese practice?

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

Other providers at this practice address

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Edward Charles Surgery Physician · Glendale, AZ NPI 1821097973 Caroline Finley Medical Physician Assistant · Glendale, AZ NPI 1235123720 Margaret Mills Pediatric Nurse Practitioner · Glendale, AZ NPI 1205821642 Annette Berka Hand Occupational Therapist · Glendale, AZ NPI 1437147774 Sivakami Moorthy Surgical Oncology Physician · Glendale, AZ NPI 1124019575 Ravi Agarwal Otolaryngology Physician · Glendale, AZ NPI 1588647424 Westside Ear Nose & Throat PC Otolaryngology Physician · Glendale, AZ NPI 1376528976 Cary Colter Anesthesiology Physician · Glendale, AZ NPI 1083693436

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-08-05.