Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. James W Williams, M.D.

Anatomic Pathology & Clinical Pathology Physician in Scottsdale, AZ · enumerated 2005.

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

National Provider Identifier

1336121771

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Registry record

Entity type Individual (Type 1)

Name Dr. James W Williams

Credential M.D.

Sex Male

Practice address 13400 E Shea Blvd, Scottsdale, AZ, 85259

Phone (480) 301-8000

Enumeration date Nov 18, 2005

Last updated in NPPES Oct 31, 2007

Taxonomy & licenses

207ZP0102X Anatomic Pathology & Clinical Pathology Physician Allopathic & Osteopathic Physicians · License 10542 (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
86080015085259A260	Other	AZ	TRIWEST
331158	Medicaid	AZ	-

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

Where does James Williams practice?

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

What is the NPI number for James Williams?

The National Provider Identifier (NPI) for James Williams is 1336121771, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-10-31.