Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Thomas Frederick Wold, M.D.

Specialist in Mather, CA · enumerated 2005.

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

National Provider Identifier

1598740763

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Registry record

Entity type Individual (Type 1)

Name Dr. Thomas Frederick Wold

Credential M.D.

Sex Male

Practice address 10535 Hospital Way, Mather, CA, 95655

Phone (916) 561-7485

Enumeration date Dec 10, 2005

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

174400000X Specialist Other Service Providers · License A44712 (CA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 1598740763 active?

Yes, as of the latest NPPES snapshot, NPI 1598740763 is active (record last updated 2007-07-08).

How do I verify Thomas Wold's NPI record?

Cross-check NPI 1598740763 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Harold Burger Infectious Disease Physician · Mather, CA NPI 1447251681 Aliya Akbar Family Medicine Physician · Mather, CA NPI 1467454934 Barbara Weiser Infectious Disease Physician · Mather, CA NPI 1164419784 Patricia Dalton Specialist · Mather, CA NPI 1003898750 Raymond Byun Infectious Disease Physician · Mather, CA NPI 1578545950 Randall Goethals Geriatric Medicine (Internal Medicine) Physician · Mather, CA NPI 1316920713 Edwin Horgan Otolaryngology Physician · Mather, CA NPI 1881677177 Martin Hoffman Physical Medicine & Rehabilitation Physician · Mather, CA NPI 1245213503

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.