Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mr. Thomas James Mcdonald, M.D.

Orthopaedic Hand Surgery Physician in Sonora, CA · enumerated 2005.

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

National Provider Identifier

1073504320

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Registry record

Entity type Individual (Type 1)

Name Mr. Thomas James Mcdonald

Credential M.D.

Sex Male

Practice address Sonora, CA, 95370

Phone (209) 532-0126

Fax (209) 532-2950

Enumeration date Nov 3, 2005

Last updated in NPPES Oct 10, 2018

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License A88661 (CA) Secondary

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 01064795A (IN) Secondary

207XS0106X Orthopaedic Hand Surgery Physician Allopathic & Osteopathic Physicians · License A88661 (CA) 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
4405104	Other	IN	CIGNA
200917390	Medicaid	IN	-
000000585039	Other	IN	ANTHEM TRADITIONAL ACCESS & PREFERRED
9362175	Other	IN	AETNA
P00703265	Other	IN	RR MEDICARE

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

What specialty is Thomas Mcdonald?

Thomas Mcdonald is registered in NPPES with the primary taxonomy of Orthopaedic Hand Surgery 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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Stephen Hopkins Surgery Physician · Sonora, CA NPI 1265498539

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-10-10.