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Donald J. Prolo, M.D., Inc.

Specialist in San Jose, CA · enumerated 2007 · authorized official Donald Prolo, M.D..

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

National Provider Identifier

1104037423

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Registry record

Entity type Organization (Type 2)
Legal business name Donald J. Prolo, M.D., Inc.
Practice address 203 Di Salvo Ave, San Jose, CA, 95128
Phone (408) 295-4022
Fax (408) 295-2562
Enumeration date May 25, 2007
Last updated in NPPES Jul 12, 2007

Taxonomy & classification

174400000X Specialist Other Service Providers · License G99280 (CA) Primary

Authorized official

Name Donald Prolo
Title M.D.
Phone (408) 295-4022

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

Who is the authorized official for Donald J. Prolo, M.D., Inc.?
NPPES lists Donald Prolo (M.D.) as the authorized official for this organization.
What is the NPI number for Donald J. Prolo, M.D., Inc.?
The NPI for Donald J. Prolo, M.D., Inc. is 1104037423, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-12.