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Donald J Williams, M.D.

Nephrology Physician in Glendale, CA · enumerated 2007.

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

National Provider Identifier

1619164720

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Registry record

Entity type Individual (Type 1)
Name Donald J Williams
Credential M.D.
Sex Male
Practice address 1505 Wilson Ter, Suite 155, Glendale, CA, 91206
Phone (818) 500-4087
Fax (818) 500-4065
Enumeration date Oct 2, 2007
Last updated in NPPES Sep 9, 2014

Taxonomy & licenses

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License G41754 (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

What is the NPI number for Donald Williams?
The National Provider Identifier (NPI) for Donald Williams is 1619164720, a Type 1 (individual) record in the CMS NPPES registry.
Where does Donald Williams practice?
The practice location on file with NPPES is in Glendale, CA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-09-09.