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Medical Toxicology (Emergency Medicine) in San Diego, California

Data updated monthly · Last refresh September 2026

3 Medical Toxicology (Emergency Medicine) providers practice in San Diego. Listings are drawn from federal public records and are not endorsements.

Medical Toxicology (Emergency Medicine) providers in San Diego

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. Christian Tomaszewski, MD

San Diego, CA · $3,178 in drug and device payments (2025) · (562) 809-3525

Dr. Justin Seltzer, MD

San Diego, CA · $3,178 in drug and device payments (2025) · Telehealth · (800) 926-8273

Dr. Mark Simon, MD

San Diego, CA · No drug or device payments recorded (2025) · (800) 926-8273

Common questions

How many Medical Toxicology (Emergency Medicine) providers are in San Diego, California?

There are 3 Medical Toxicology (Emergency Medicine) providers with active NPI records practicing in San Diego, according to federal NPPES data refreshed monthly.

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 San Diego Medical Toxicology (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.