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Clinical Psychologist

Ronald Offenstein

Sees patients in Riverside, CA · California

Summary

Ronald Offenstein (Clinical Psychologist) is enrolled with Medicare at 1 practice location in Riverside, CA. NPI 1811091978. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Ronald Offenstein, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Clinical PsychologistPrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
53Years since medical school (graduated 1973)
MaleGender (as listed)
Riverside Psychiatric Medical GroupGroup practice

Quick answers

Where does Ronald Offenstein see patients?
Medicare's clinician data lists 1 practice location in Riverside, CA. Call before your visit to confirm the address.
What is Ronald Offenstein's specialty?
Medicare lists Clinical Psychologist as the primary specialty.
Does Ronald Offenstein accept Medicare assignment?
Yes. Medicare's clinician data says Ronald Offenstein accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
Does Ronald Offenstein offer telehealth?
Medicare's clinician data says Ronald Offenstein offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Ronald Offenstein?
(951) 275-8500, as listed in official Medicare / NPI Registry data.
What is Ronald Offenstein's NPI number?
1811091978. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Ronald Offenstein is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Ronald Offenstein as a member of this group (CMS data updated 2026-10-02).

  • Riverside Psychiatric Medical Group8 clinicians in the group

Specialties

Find other clinicians: Clinical Psychologist, California →

Other clinical psychologists in Riverside

Clinicians with the same Medicare primary specialty in Riverside, CA — not a recommendation.

All clinical psychologists in Riverside →

Clinician information

Graduation year1973
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1811091978
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians