Medical Specialty Listing

Emergency Medicine Providers in Lancaster, CA

Browse 26 Emergency Medicine providers listed in NPPES with a practice address in Lancaster, California.

26 Healthcare Providers

Paying without insurance? Prepare a cost-estimate request

How Lancaster compares with the U.S.

Lancaster has 15 clinicians in Emergency Medicine per 100,000 residents, about 73% of the U.S. rate of 21.

That is 26 active clinicians in Emergency Medicine with a practice address in Lancaster, for a population of 169,169.

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 Lancaster 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 Registry addresses can be out of date.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 · 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 Lancaster, CA

Source: CMS PECOS

PECOS Enrolled Specialists 15 In Lancaster, CA

Part B Lab & Imaging Eligible 15 Diagnostic Referrals

DME Ordering Eligible 15 Durable Medical Equipment

Home Health Agency Referrals 15 HHA Ordering Eligible

Showing 1–20 of 26 providers

With recent CMS data first, then A–Z

Dr. Mark Brown , MD

Emergency Medicine

Active NPI Status

1600 W Avenue J, Lancaster, CA 935342814

Phone: 6619495000

NPI Identifier 1336105675

Emergency Medicine Providers in Lancaster, CA

How Lancaster compares with the U.S.

Emergency Medicine Medicare (PECOS) Enrollment & Ordering Eligibility

Dr. Mark Brown , MD

Dr. Travis E Deuson , MD

Dr. Trent Erney , MD

Dr. Nancy Louise Ferrel , MD

Dr. Bing Hao Hui , MD

Dr. Joseph Hwang , MD

Joshua Ireland , PA

Diane L Kehrli , NP

Daniel Khodabakhsh

Dr. Thomas Lee , MD

Dr. Chin-Yu Jean Lo , MD

Dr. Matthew Richard , MD

Dr. Robert Alan Richardson , MD

Dr. Lawrence Stock , MD

Dr. Jennifer Leigh Termeer , MD

Jake Wilson

Dr. John Francis Zambetti , MD

Dr. Frederic S Auerbach , MD

Dr. Frank Detrana , MD

Kelly A Hall , DVM

Frequently Asked Questions about Emergency Medicine in Lancaster

Related Specialties in Lancaster

Other Specialties in Lancaster

Emergency Medicine Providers in Other California Cities