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Emergency Medicine

Stephen C. Patterson, MD

Works at hospitals in Riverside, CA · Moreno Valley, CA · California

Summary

Stephen C. Patterson, MD (Emergency Medicine) is listed by Medicare at 2 hospitals in Riverside, CA and Moreno Valley, CA. NPI 1932124351. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Stephen C. Patterson, 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

Emergency MedicinePrimary specialty
YesAccepts Medicare assignment
27Years since medical school (graduated 1999)
University Of California, Irvine, California College Of MedicineMedical school
MaleGender (as listed)
Cep America - CaliforniaGroup practice

Quick answers

Which hospitals does Stephen C. Patterson work at?
Medicare's official clinician data lists Stephen C. Patterson at 2 hospitals: Riverside Community Hospital and Riverside University Health System-Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Stephen C. Patterson see patients?
Medicare's clinician data lists 1 practice location in Moreno Valley, CA. Call before your visit to confirm the address.
What is Stephen C. Patterson's specialty?
Medicare lists Emergency Medicine as the primary specialty.
Does Stephen C. Patterson accept Medicare assignment?
Yes. Medicare's clinician data says Stephen C. Patterson 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.
What is the phone number for Stephen C. Patterson?
(909) 486-5650, as listed in official Medicare / NPI Registry data.
What is Stephen C. Patterson's NPI number?
1932124351. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Stephen C. Patterson works

Medicare's Facility Affiliation Data lists Stephen C. Patterson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Stephen C. Patterson is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Stephen C. Patterson as a member of this group (CMS data updated 2026-10-02).

  • Cep America - California1,292 clinicians in the group

Specialties

Find other Emergency Medicine doctors in California →

Other emergency medicine doctors in Moreno Valley

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

All emergency medicine doctors in Moreno Valley →

Clinician information

CredentialMD
Medical schoolUniversity Of California, Irvine, California College Of Medicine
Graduation year1999
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1932124351
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. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians