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Emergency Medicine Providers in Riverside, CA

Browse 99 Emergency Medicine providers listed in NPPES with a practice address in Riverside, California.

99 Healthcare Providers

How Riverside compares with the U.S.

Riverside has 31 clinicians in Emergency Medicine per 100,000 residents, about 1.5 times the U.S. rate of 21.

That is 99 active clinicians in Emergency Medicine with a practice address in Riverside, for a population of 319,069.

The California rate is 20 per 100,000 residents.

What these numbers mean

Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.

A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.

City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places. Cities with hospitals or large medical centers often list more specialists than the number of residents alone would suggest, because patients also come from nearby areas.

97% of clinicians in Emergency Medicine in Riverside listed in the CMS Medicare file (56 of 58) accept Medicare assignment. That is similar to the California share of 97%.

What is Medicare assignment?

A clinician who accepts Medicare assignment agrees to take the Medicare-approved amount as full payment for services that Original Medicare covers. You usually still pay your deductible and coinsurance. This comes from the CMS Doctors and Clinicians file and applies to Original Medicare only. Medicare Advantage plans have their own provider networks. It does not show whether a clinician is taking new patients.

Some clinicians are listed as "may accept assignment," which means they can decide case by case. Clinicians without an assignment flag, or who are not in the CMS file, are not counted as accepting assignment. That does not mean they refuse Medicare. Ask the office before your visit.

2% of clinicians in Emergency Medicine in Riverside listed in the CMS Medicare file (1 of 58) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is similar to the California share of 5%.

About the telehealth indicator

The telehealth indicator comes from CMS. It marks clinicians whose recent paid Medicare claims include services delivered by telehealth. It means a clinician has provided some services by telehealth, not that every visit can be done online. A clinician without the indicator may still offer telehealth, for example to patients who are not on Medicare. Ask the office which visits can be done by video or phone.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com ยท Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Medicare assignment and telehealth indicators: CMS Doctors and Clinicians National Downloadable File. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Emergency Medicine Medicare (PECOS) Enrollment & Ordering Eligibility

Medicare enrollment and order/referring eligibility listed by CMS for Emergency Medicine practitioners in Riverside, CA

Source: CMS PECOS
PECOS Enrolled Specialists 87 In Riverside, CA
Part B Lab & Imaging Eligible 88 Diagnostic Referrals
DME Ordering Eligible 89 Durable Medical Equipment
Home Health Agency Referrals 88 HHA Ordering Eligible
Showing 1โ€“20 of 99 providers
With recent CMS data first, then Aโ€“Z

John Abdelshehid Abed

Emergency Medicine

Active NPI Status
3865 Jackson St, Riverside, CA 925033919
Phone: 3102007199
NPI Identifier 1891724316
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Dr. Adrian Zabdiel Agudelo , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
4445 Magnolia Ave, Riverside, CA 925014135
Phone: 9517883537
NPI Identifier 1649739772
View Full Profile

Dr. Jason K An , MD

Emergency Medicine

Active NPI Status
4445 Magnolia Ave, Riverside Community Hospital Dept Of Emergency Medicine, Riverside, CA 925014135
Phone: 9516843910
NPI Identifier 1851533905
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Nader Walid Badri

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
4445 Magnolia Ave, Riverside, CA 925014135
Phone: 9517883000
NPI Identifier 1861020711
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Dr. Oscar R. Benitez , MD

Emergency Medicine

Active NPI Status
10800 Magnolia Ave, Riverside, CA 925053043
Phone: 9093532000
NPI Identifier 1710035696
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Dr. Rebecca C. Bishop , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
4445 Magnolia Ave, Riverside, CA 925014135
Phone: 9517883000
NPI Identifier 1417488792
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Christine Mei Black

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
4445 Magnolia Ave, Riverside, CA 925014135
Phone: 9517883000
NPI Identifier 1881222792
View Full Profile

Dr. Barbara J. Blasko , MD

Emergency Medicine

Active NPI Status
10800 Magnolia Ave, Riverside, CA 925053043
Phone: 9093532000
NPI Identifier 1689741597
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Dr. Rishi Bommannan , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
4510 Brockton Ave Ste 223, Riverside, CA 925014020
Phone: 9517883536
NPI Identifier 1851040323
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Dr. Ryan L. Brenchley , MD

Emergency Medicine

Active NPI Status
4445 Magnolia Ave, Riverside, CA 925014135
Phone: 9097883000
NPI Identifier 1154437390
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Dr. Robert James Cannon , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
3865 Jackson St, Riverside, CA 925033919
Phone: 9513525666
NPI Identifier 1528097045
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Dr. Ryan Arvid Carlson , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
4445 Magnolia Ave, Riverside, CA 925014135
Phone: 9517883537
NPI Identifier 1144857368
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Brennan Chang

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
4445 Magnolia Ave, Riverside, CA 925014135
Phone: 9517883000
NPI Identifier 1306473343
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Dr. Daniel C Chang , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
19069 Van Buren Blvd, Ste 114-427, Riverside, CA 925089169
Phone: 9516966161
NPI Identifier 1639379233
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Dr. Kathy Lin Chuang , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
10800 Magnolia Ave, Emergency Department, Riverside, CA 925053043
Phone: 9513533970
NPI Identifier 1801024450
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Dr. Chad Leroy Clark , MD

Emergency Medicine

Active NPI Status
3865 Jackson St, Riverside, CA 925033919
Phone: 9513525666
NPI Identifier 1023052545
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Dr. Richard Arthur Clinton , MD

Emergency Medicine

Active NPI Status
10800 Magnolia Ave, Department Of Emergency Medicine, Riverside, CA 925053043
Phone: 9513533790
NPI Identifier 1912117813
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Dr. Michael Christopher Cordeiro , MD

Emergency Medicine

Active NPI Status
10800 Magnolia Ave, Emergency Medicine, Riverside, CA 925053043
Phone: 9513532000
NPI Identifier 1902048473
View Full Profile
Active NPI Status Accepts Medicare Assignment
4445 Magnolia Ave, Riverside, CA 925014135
Phone: 9517883000
NPI Identifier 1033640073
View Full Profile

Dr. Kenneth M Dale , DO

Emergency Medicine

Active NPI Status
4445 Magnolia Ave, Riverside, CA 92501
Phone: 9517883000
NPI Identifier 1932158771
View Full Profile

Frequently Asked Questions about Emergency Medicine in Riverside

How do I check a Emergency Medicine practitioner's license?

Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the California licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.

Why is a practitioner missing from this list?

This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.