Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

David A Williamson, M.D.

Diagnostic Radiology Physician in Jackson, MI · enumerated 2005.

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

National Provider Identifier

1013918127

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Registry record

Entity type Individual (Type 1)

Name David A Williamson

Credential M.D.

Sex Male

Practice address 205 N East Ave, Imaging Department, Jackson, MI, 49201

Phone (517) 783-2612

Fax (517) 783-5991

Enumeration date Aug 10, 2005

Last updated in NPPES Jan 10, 2017

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 4301052819 (MI) 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
4301052819	Other	MI	STATE OF MICHIGAN MEDICAL LICENSE
300020176	Other	-	RAILROAD MEDICARE
3103801401	Other	MI	BCBS OF MICHIGAN
1915052	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

Is NPI 1013918127 active?

Yes, as of the latest NPPES snapshot, NPI 1013918127 is active (record last updated 2017-01-10).

How do I verify David Williamson's NPI record?

Cross-check NPI 1013918127 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-01-10.