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Emergency Medicine Providers in Corona, CA

Browse 14 Emergency Medicine providers listed in NPPES with a practice address in Corona, California.

14 Healthcare Providers

How Corona compares with the U.S.

Corona has 8.8 clinicians in Emergency Medicine per 100,000 residents, about 42% of the U.S. rate of 21.

That is 14 active clinicians in Emergency Medicine with a practice address in Corona, for a population of 159,670.

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.

Too few clinicians in Emergency Medicine in Corona are listed in the CMS Medicare file to report Medicare assignment or telehealth shares.

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 Registry addresses can be out of date.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. 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 Corona, CA

Source: CMS PECOS
PECOS Enrolled Specialists 11 In Corona, CA
Part B Lab & Imaging Eligible 11 Diagnostic Referrals
DME Ordering Eligible 11 Durable Medical Equipment
Home Health Agency Referrals 11 HHA Ordering Eligible
Showing 1โ€“14 of 14 providers
With recent CMS data first, then Aโ€“Z

Dr. Charles Addo-Yobo , DO

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
800 S Main St, Corona, CA 928823420
Phone: 9517374343
NPI Identifier 1821625955
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Dr. Neil Ashvin Bhutwala , DO

Emergency Medicine

Active NPI Status
800 S Main St, Corona, CA 928823420
Phone: 9517374000
NPI Identifier 1316500408
View Full Profile

Dr. James Bernard Boyd , MD

Emergency Medicine

Active NPI Status
800 S Main St, Corona, CA 928823420
Phone: 9097366241
NPI Identifier 1184730855
View Full Profile

Dr. Joaquin Castillo Marroquin , DO

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
800 S Main St, Corona, CA 928823420
Phone: 9517374343
NPI Identifier 1316407323
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Dr. Louis T Chau , MD

Emergency Medicine

Active NPI Status
800 S Main St, Corona, CA 928823420
Phone: 9097366241
NPI Identifier 1225144918
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Dr. Tam Thanh Dang , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
800 S Main St, Corona, CA 928823420
Phone: 9517374343
NPI Identifier 1275824799
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Dr. Aakanksha Mehta Fenster , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
800 S Main St, Corona, CA 928823420
Phone: 9517366241
NPI Identifier 1659661163
View Full Profile

Dr. Taylor Noel Filler , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
800 S Main St, Corona, CA 928823420
Phone: 9517374343
NPI Identifier 1932762788
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Dr. Jason M Fisher , MD

Emergency Medicine

Active NPI Status
800 S Main St, Corona, CA 928823420
Phone: 9097366241
NPI Identifier 1124032248
View Full Profile

Dr. Yuna Park , MD

Emergency Medicine

Active NPI Status
800 S Main St, Corona, CA 928823420
Phone: 9517366241
NPI Identifier 1437785573
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Dr. David P Pham , DO

Emergency Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
308 W 6th St Ste 101, Corona, CA 928823349
Phone: 9517370910
NPI Identifier 1952403396
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Luis Villegas

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
800 S Main St, Corona, CA 928823420
Phone: 9517374343
NPI Identifier 1134507486
View Full Profile

Dr. David M Bear , MD

Emergency Medicine

Active NPI Status
800 S Main St, Corona, CA 928823420
Phone: 9097366241
NPI Identifier 1114033883
View Full Profile

Dr. Nancy Marie Chung , MD

Emergency Medicine

Active NPI Status
2815 S Main St Ste 110, Corona, CA 928822532
Phone: 9512788385
NPI Identifier 1275577447
View Full Profile

Frequently Asked Questions about Emergency Medicine in Corona

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.