HealthcareDiscovery.AI / Doctors / California / Medical Toxicology (Preventive Medicine)

Medical Toxicologists (Preventive Medicine) in California

Data updated monthly · Last refresh October 2026

5 Medical Toxicology (Preventive Medicine) providers practice in California. The largest concentration is in San Francisco. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.

5providers
San Franciscotop city

Medical Toxicology (Preventive Medicine) by city in California

Choose a city to see providers there.

Medical Toxicology (Preventive Medicine) in San Francisco2 providers
Medical Toxicology (Preventive Medicine) in Berkeley1 providers
Medical Toxicology (Preventive Medicine) in Stockton1 providers
Medical Toxicology (Preventive Medicine) in Ojai1 providers

Medical Toxicology (Preventive Medicine) providers in California

Listed by city, largest first. 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. Janet Weiss, MD
Berkeley, CA · No drug or device payments recorded (2025) · (510) 849-4237
Dr. Robin Bernhoft, MD
Ojai, CA · No drug or device payments recorded (2025) · (805) 640-0180
Dr. Christine Haller, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 206-3497
Dr. Thanjira Jiranantakan, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 533-1995
Dr. Natalie Rodriguez
Stockton, CA · No drug or device payments recorded (2025) · (209) 683-9300

Common questions

How many Medical Toxicology (Preventive Medicine) providers are in California?

There are 5 Medical Toxicology (Preventive Medicine) providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.

Which cities in California have the most Medical Toxicology (Preventive Medicine) providers?

San Francisco (2), Berkeley (1), Stockton (1) have the highest concentration of Medical Toxicology (Preventive Medicine) providers in California.

Where does this data come from?

Provider counts and profiles 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.

Related reading on HealthcareDiscovery.AI

Medical Toxicology (Preventive Medicine) in all 50 states Search all 5 in the directory Ask Zach for help choosing

Related

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. Are you a Medical Toxicology (Preventive Medicine) in California? Get featured.