Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Aaron D Williams, D.O.

Sports Medicine (Family Medicine) Physician in Medford, OR · enumerated 2006 · practices at Providence Health & Services - Oregon.

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

National Provider Identifier

1578541710

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Registry record

Entity type Individual (Type 1)

Name Dr. Aaron D Williams

Credential D.O.

Sex Male

Practice address 70 Bower Dr, Medford, OR, 97501

Phone (541) 732-8790

Fax (541) 732-3415

Enumeration date Jan 6, 2006

Last updated in NPPES Nov 29, 2023

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License DO172277 (OR) Secondary

207QS0010X Sports Medicine (Family Medicine) Physician Allopathic & Osteopathic Physicians · License DO172277 (OR) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
500687560	Medicaid	OR	-

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 specialty is Aaron Williams?

Aaron Williams is registered in NPPES with the primary taxonomy of Sports Medicine (Family Medicine) Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

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Shirley Malcolm Family Medicine Physician · Medford, OR NPI 1316951510 Brian Prestwich Family Medicine Physician · Medford, OR NPI 1922194174 Ahren Geilenfeldt Neuromuscular Medicine (Physical Medicine & Rehabilitation) Physician · Medford, OR NPI 1316384068 Carissa Bravo Clinical Psychologist · Medford, OR NPI 1538562749 Uzomechine Chiedozi Family Medicine Physician · Medford, OR NPI 1699160903 Jennifer Deltour Family Nurse Practitioner · Medford, OR NPI 1265813729 Providence Health & Services - Oregon Family Medicine Physician · Medford, OR NPI 1346619467 Aaron Dam Family Medicine Physician · Medford, OR NPI 1851826937

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-11-29.