Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

David M Williams, MD

Diagnostic Radiology Physician in Ann Arbor, MI · enumerated 2006.

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

National Provider Identifier

1679654669

Verified

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Registry record

Entity type Individual (Type 1)

Name David M Williams

Credential MD

Sex Male

Practice address 1500 East Medical Center Dr, B1 Floor University Hospital Recp C, Ann Arbor, MI, 48109

Phone (734) 936-4566

Enumeration date Oct 18, 2006

Last updated in NPPES Apr 13, 2012

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 4301042593 (MI) Primary

2085R0204X Vascular & Interventional Radiology Physician Allopathic & Osteopathic Physicians · License 4301042593 (MI) Secondary

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
1442482	Medicaid	MI	-

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

Where does David Williams practice?

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

What is the NPI number for David Williams?

The National Provider Identifier (NPI) for David Williams is 1679654669, 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 2012-04-13.