Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mr. Ronald Earl Offenstein, PHD

Individual provider Psychologist · NPI 1811091978

Mr. Ronald Earl Offenstein, PHD is a Clinical Psychologist in Riverside, California. Qualified in 1973, 53 years ago. Practices with Riverside Psychiatric Medical Group, an 8-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
53
Licensed in
CA
In the registry since
2006
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

5887 Brockton Ave Ste A Riverside Psychiatric Medical Group
Riverside, CA 92506
Phone: (951) 275-8500
Fax: (951) 275-8560
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence PSY6287 (CA)

Record details

NPI number1811091978
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedSeptember 11, 2006
Last updated in NPPESAugust 30, 2012
Mailing address5887 Brockton Ave, Suite A, Riverside, CA 92506

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 1973 (53 years in practice)
Group practice Riverside Psychiatric Medical Group — 8 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Riverside