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

Dr. David R Zimmermann, PHD

Clinical Psychologist in San Antonio, TX · enumerated 2006.

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

National Provider Identifier

1003854894

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Registry record

Entity type Individual (Type 1)

Name Dr. David R Zimmermann

Credential PHD

Sex Male

Practice address San Antonio, TX, 78212

Phone (800) 257-8715

Fax (800) 819-1655

Enumeration date Jun 3, 2006

Last updated in NPPES Feb 17, 2010

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

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 23396 (TX) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Other identifiers

Identifier	Type	State	Issuer
620003797	Other	TX	RAILROAD
115667101	Medicaid	TX	-
86122A	Other	TX	BLUE CROSS BLUE SHIELD
115667102	Medicaid	TX	-
86044A	Other	TX	BLUE CROSS BLUE SHIELD
86147A	Other	TX	BLUE CROSS BLUE SHIELD
86383A	Other	TX	BLUE CROSS BLUE SHIELD

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 David Zimmermann?

The National Provider Identifier (NPI) for David Zimmermann is 1003854894, a Type 1 (individual) record in the CMS NPPES registry.

Where does David Zimmermann practice?

The practice location on file with NPPES is in San Antonio, TX. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-02-17.