Robert John Hohenstein, PHD

Robert John Hohenstein is a Clinical Psychologist provider (Psychologist) practicing in Brea, CA, registered in the NPPES registry with NPI 1336131416 since 2005. The credential PHD stands for Doctor of Philosophy.

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NPI	1336131416
Entity type	Individual (Type 1)
Name	Robert John Hohenstein
Credential	PHD
Sex	Male
Practice address	3350 E BIRCH ST, SUITE 100, Brea, CA, 92821
Phone	7145289335
Fax	7145289630
Enumeration date	2005-08-16
Last updated in NPPES	2007-07-08

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
103TC0700X	Clinical Psychologist	Primary	PSY9792	CA

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

Copy-ready billing details

Provider: Robert Hohenstein, PHD
NPI: 1336131416
Taxonomy: 103TC0700X (Clinical Psychologist)
Address: 3350 E BIRCH ST, SUITE 100, Brea, CA, 92821

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1518959162	Charles Malinick	Individual	Child & Adolescent Psychiatry Physician	Brea, CA
1508998329	Gregg Sentenn	Individual	Psychiatry Physician	Brea, CA
1396297313	Marcia Taborga	Individual	Clinical Psychologist	Brea, CA

Verify this record

Cross-check NPI 1336131416 against the authoritative CMS record: view Robert John Hohenstein on the official NPPES registry .

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. Read the full guide or validate an NPI number.

Frequently asked questions

What specialty is Robert Hohenstein?

Robert Hohenstein is registered in NPPES with the primary taxonomy of Clinical Psychologist. 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.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.