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Emergency Medicine in Roseville, California

Data updated monthly · Last refresh September 2026

57 Emergency Medicine providers practice in Roseville, and 11% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.

Emergency Medicine providers in Roseville

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. Samuel Johnson, D.O.
Roseville, CA · No drug or device payments recorded (2025) · (916) 865-1400
Dr. Spencer Kozik, MD
Roseville, CA · No drug or device payments recorded (2025) · (916) 784-4050
Dr. Susan Hedrick, MD
Roseville, CA · No drug or device payments recorded (2025) · (916) 781-1811
Dr. Terrence Horan, M.D.
Roseville, CA · No drug or device payments recorded (2025) · (916) 784-4000
Dr. Whitney Knott, M.D.
Roseville, CA · No drug or device payments recorded (2025) · (916) 784-4000
Dr. Wilson Smith, MD
Roseville, CA · No drug or device payments recorded (2025) · (916) 784-4000
Dr. Zinmar Ma, MD
Roseville, CA · $25 in drug and device payments (2025) · (916) 772-6337

Common questions

How many Emergency Medicine providers are in Roseville, California?

There are 57 Emergency Medicine providers with active NPI records practicing in Roseville, according to federal NPPES data refreshed monthly.

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

6 of 57 (11%) 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 Roseville 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.