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Emergency Medicine in Lancaster, California

Data updated monthly · Last refresh September 2026

26 Emergency Medicine providers practice in Lancaster, and 4% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.

Emergency Medicine providers in Lancaster

Listed alphabetically. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.

Dr. Andrew Lesser, M.D.
Lancaster, CA · No drug or device payments recorded (2025) · (661) 945-5984
Dr. Anna Law, M.D.
Lancaster, CA · No drug or device payments recorded (2025) · (661) 948-8581
Dr. Bing Hui, M.D.
Lancaster, CA · No drug or device payments recorded (2025) · (661) 471-4020
Dr. Chin-yu Lo, MD
Lancaster, CA · No drug or device payments recorded (2025) · (661) 940-1421
Dr. Christopher Spencer, MD
Lancaster, CA · No drug or device payments recorded (2025) · (661) 949-5000
Dr. Daniel Khodabakhsh
Lancaster, CA · No drug or device payments recorded (2025) · (661) 726-6225
Dr. Diane Kehrli, NP
Lancaster, CA · No drug or device payments recorded (2025) · (661) 949-5000
Dr. Frank Detrana, MD
Lancaster, CA · No drug or device payments recorded (2025) · (661) 949-5000
Dr. Frederic Auerbach, MD
Lancaster, CA · No drug or device payments recorded (2025) · (661) 949-5000
Dr. Jake Wilson
Lancaster, CA · No drug or device payments recorded (2025) · (661) 949-5000
Dr. Jennifer Termeer, MD
Lancaster, CA · $387 in drug and device payments (2025) · (661) 949-5115
Dr. John Zambetti, M.D.
Lancaster, CA · No drug or device payments recorded (2025) · (661) 945-5984
Dr. Joseph Hwang, M.D.
Lancaster, CA · No drug or device payments recorded (2025) · (661) 948-4781
Dr. Joshua Ireland, PA
Lancaster, CA · No drug or device payments recorded (2025) · (661) 949-5000
Dr. Kelly Hall, DVM
Lancaster, CA · No drug or device payments recorded (2025) · (661) 729-1500
Dr. Kitcha Ranch, MD
Lancaster, CA · No drug or device payments recorded (2025) · (661) 940-1421
Dr. Lawrence Stock, MD
Lancaster, CA · No drug or device payments recorded (2025) · (661) 949-5000
Dr. Mark Brown, MD
Lancaster, CA · No drug or device payments recorded (2025) · (661) 949-5000
Dr. Mary Saputo, NP
Lancaster, CA · No drug or device payments recorded (2025) · (661) 949-5000
Dr. Matthew Richard, M.D.
Lancaster, CA · No drug or device payments recorded (2025) · (661) 949-5000
Dr. Michael Leidner, MD
Lancaster, CA · No drug or device payments recorded (2025) · (661) 949-5000
Dr. Nancy Ferrel, M.D.
Lancaster, CA · No drug or device payments recorded (2025) · (661) 948-8581
Dr. Robert Richardson, M.D.
Lancaster, CA · No drug or device payments recorded (2025) · (661) 942-2391
Dr. Thomas Lee, MD
Lancaster, CA · No drug or device payments recorded (2025) · (661) 949-5000
Dr. Travis Deuson, MD
Lancaster, CA · No drug or device payments recorded (2025) · (661) 949-5000
Dr. Trent Erney, M.D.
Lancaster, CA · No drug or device payments recorded (2025) · (661) 471-4020

Common questions

How many Emergency Medicine providers are in Lancaster, California?

There are 26 Emergency Medicine providers with active NPI records practicing in Lancaster, according to federal NPPES data refreshed monthly.

How many Emergency Medicine providers in Lancaster received drug or device company payments?

1 of 26 (4%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.

Where does this data come from?

Provider records come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.

All specialties in Lancaster Emergency Medicine across California

Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory.