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Emergency Medicine Providers in La Mesa, CA

Browse 42 Emergency Medicine providers listed in NPPES with a practice address in La Mesa, California.

42 Healthcare Providers

How La Mesa compares with the U.S.

La Mesa has 69 clinicians in Emergency Medicine per 100,000 residents, 3.3 times the U.S. rate of 21.

That is 42 active clinicians in Emergency Medicine with a practice address in La Mesa, for a population of 60,797.

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 La Mesa listed in the CMS Medicare file (26 of 26) 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.

None of the 26 clinicians in Emergency Medicine in La Mesa listed in the CMS Medicare file have a CMS telehealth indicator. Some may still offer telehealth; ask the office.

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 La Mesa, CA

Source: CMS PECOS
PECOS Enrolled Specialists 30 In La Mesa, CA
Part B Lab & Imaging Eligible 29 Diagnostic Referrals
DME Ordering Eligible 31 Durable Medical Equipment
Home Health Agency Referrals 29 HHA Ordering Eligible
Showing 1โ€“20 of 42 providers
With recent CMS data first, then Aโ€“Z

Dr. Christa Ann Landowska Arefieva , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
5555 Grossmont Center Dr, La Mesa, CA 919423019
Phone: 6197406000
NPI Identifier 1033776075
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Dr. Brook Darrett Beall , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
5555 Grossmont Center Dr, Grossmont Hospital Emergency Department, La Mesa, CA 919423019
Phone: 6197403958
NPI Identifier 1508803529
View Full Profile

Dr. Andre Boustani , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
5555 Grossmont Center Dr, La Mesa, CA 919423019
Phone: 6197406000
NPI Identifier 1386938397
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Dr. Brent A Butcher , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
5555 Grossmont Center Dr, La Mesa, CA 919423019
Phone: 6196444401
NPI Identifier 1861413700
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Dr. Daniel Chang , DO

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
5525 Grossmont Center Dr, La Mesa, CA 919423009
Phone: 8008274277
NPI Identifier 1619265675
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Dr. Danielle Jacqueline Douglas , MD

Emergency Medicine

Active NPI Status
5555 Grossmont Center Dr, La Mesa, CA 919423019
Phone: 6197404401
NPI Identifier 1336358977
View Full Profile

Dr. Eric Einstein , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
5555 Grossmont Center Dr, La Mesa, CA 919423019
Phone: 6197404405
NPI Identifier 1154683787
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Dr. Paul Narayan Hein , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
5555 Grossmont Center Dr, La Mesa, CA 919423019
Phone: 6197406000
NPI Identifier 1124524228
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Dr. James Hsiao , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
5555 Grossmont Center Dr, La Mesa, CA 919423019
Phone: 4102066613
NPI Identifier 1306022959
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Dr. Steven M Jaeger , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
6136 Lake Murray Blvd, La Mesa, CA 919422502
Phone: 6193030550
NPI Identifier 1548270564
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Joshua Kamnetz

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
5555 Grossmont Center Dr, La Mesa, CA 91942
Phone: 6197406000
NPI Identifier 1912392846
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Dr. Jonathan Hollander Kaplan , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
5555 Grossmont Center Dr, La Mesa, CA 919423019
Phone: 6194650711
NPI Identifier 1821451089
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Dr. Ashraf S Kasto , DO

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
5555 Grossmont Center Dr, La Mesa, CA 919423019
Phone: 5598363474
NPI Identifier 1629116058
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Kevin M. Kelly

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
5555 Grossmont Center Drive, La Mesa, CA 919423019
Phone: 6196444401
NPI Identifier 1811924764
View Full Profile

Dr. Blake Lopez , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
5555 Grossmont Center Dr, La Mesa, CA 919423019
Phone: 6194650711
NPI Identifier 1962908111
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Dr. David Miles , DO

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
5555 Grossmont Center Dr, La Mesa, CA 919423019
Phone: 6197406000
NPI Identifier 1043606916
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Dr. Jolene Miller , DO

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
5555 Grossmont Center Dr, La Mesa, CA 919423019
Phone: 8585311528
NPI Identifier 1649552621
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Dr. David Peter Neison , MD

Emergency Medicine

Active NPI Status
5555 Grossmont Center Dr, La Mesa, CA 919423019
Phone: 6197404405
NPI Identifier 1316120918
View Full Profile

Dr. Yenisleidy Paez Perez , DO

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
5555 Grossmont Center Dr, La Mesa, CA 919423019
Phone: 6107406000
NPI Identifier 1578947420
View Full Profile

Dr. Eleni Pentheroudakis , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
5555 Grossmont Center Dr, Emergency Department, La Mesa, CA 919423019
Phone: 6197404402
NPI Identifier 1952349987
View Full Profile

Frequently Asked Questions about Emergency Medicine in La Mesa

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.