Independent US Healthcare Provider Directory & Public Medical Database Patient Guides
Medical Specialty Listing

Emergency Medicine Providers in San Leandro, CA

Browse 59 Emergency Medicine providers listed in NPPES with a practice address in San Leandro, California.

59 Healthcare Providers

How San Leandro compares with the U.S.

San Leandro has 67 clinicians in Emergency Medicine per 100,000 residents, 3.2 times the U.S. rate of 21.

That is 59 active clinicians in Emergency Medicine with a practice address in San Leandro, for a population of 87,826.

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.

100% of clinicians in Emergency Medicine in San Leandro listed in the CMS Medicare file (36 of 36) 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.

14% of clinicians in Emergency Medicine in San Leandro listed in the CMS Medicare file (5 of 36) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is higher than 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 San Leandro, CA

Source: CMS PECOS
PECOS Enrolled Specialists 52 In San Leandro, CA
Part B Lab & Imaging Eligible 52 Diagnostic Referrals
DME Ordering Eligible 53 Durable Medical Equipment
Home Health Agency Referrals 52 HHA Ordering Eligible
Showing 1โ€“20 of 59 providers
With recent CMS data first, then Aโ€“Z

Dr. Rabiatu Abdullah , MD

Emergency Medicine

Active NPI Status
2500 Merced St, San Leandro, CA 945774201
Phone: 5104541000
NPI Identifier 1497833248
View Full Profile

Dr. Edris M Afzali , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
13855 E 14th St, San Leandro, CA 945782611
Phone: 5106674545
NPI Identifier 1265661813
View Full Profile

Dr. Marc James Andrews , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
2500 Merced St, San Leandro, CA 945774201
Phone: 5104541000
NPI Identifier 1588743637
View Full Profile

Dr. Ted Apstein , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
2500 Merced St, San Leandro, CA 945774201
Phone: 5107366767
NPI Identifier 1447647664
View Full Profile

Dr. Reza Sam Borhani , DO

Emergency Medicine

Active NPI Status
2500 Merced St, San Leandro, CA 945774201
Phone: 5104541000
NPI Identifier 1699827402
View Full Profile

Dr. Allison Boyd , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
2500 Merced St, San Leandro, CA 945774201
Phone: 5104541000
NPI Identifier 1033479894
View Full Profile

Dr. Adam Brown , DO

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
2500 Merced St, San Leandro, CA 945774201
Phone: 5104541000
NPI Identifier 1306208855
View Full Profile

Dr. George Francis Brown , MD

Emergency Medicine

Active NPI Status
2500 Merced St, San Leandro, CA 945774201
Phone: 5104541000
NPI Identifier 1174601660
View Full Profile

Dr. Aaron Allan Burchfield , MD

Emergency Medicine

Active NPI Status
13855 E 14th St, San Leandro, CA 945782611
Phone: 2093422300
NPI Identifier 1255312237
View Full Profile

Dr. Vanessa Yasmin Calderon , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
13855 E 14th St, Emergency Department, San Leandro, CA 945782611
Phone: 5106674545
NPI Identifier 1275854820
View Full Profile

Dr. Quan Chen , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
2500 Merced St, San Leandro, CA 945774201
Phone: 5104541000
NPI Identifier 1174086029
View Full Profile

Emily Chien

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
2500 Merced St, San Leandro, CA 945774201
Phone: 7182454798
NPI Identifier 1548750474
View Full Profile

Joel Chiu

Emergency Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
13855 E 14th St, San Leandro, CA 945782611
Phone: 2093422300
NPI Identifier 1295726446
View Full Profile

Dr. Calder Bryce Conner , MD

Emergency Medicine

Active NPI Status
2587 Merced St, San Leandro, CA 945774207
Phone: 5103513553
NPI Identifier 1770537433
View Full Profile

Dr. Sarabeth Copos , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
2500 Merced St, San Leandro, CA 945774201
Phone: 5104541000
NPI Identifier 1861851206
View Full Profile

Dr. Brian Joseph Cutcliffe , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
2500 Merced St, San Leandro, CA 945774201
Phone: 5104541000
NPI Identifier 1679652721
View Full Profile

Rogelio Sebastian Dawkins

Emergency Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
13855 E 14th St, San Leandro, CA 945782611
Phone: 2093422300
NPI Identifier 1467443234
View Full Profile

Dr. Benjamin Anthony Feldman , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
2500 Merced St, San Leandro, CA 94577
Phone: 5104541000
NPI Identifier 1831501741
View Full Profile

Chin-Hsiang Feng

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
2500 Merced St, San Leandro, CA 945774201
Phone: 5105185598
NPI Identifier 1013370931
View Full Profile

Dr. Aaron Scott Goldfarb , DO

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
2500 Merced St, San Leandro, CA 945774201
Phone: 5104241000
NPI Identifier 1780736587
View Full Profile

Frequently Asked Questions about Emergency Medicine in San Leandro

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.