591 Addiction Medicine (Internal Medicine) providers practice across all 50 states and Washington DC, and 31% received drug or device company payments in 2025. California has the most at 72. Listings are drawn from federal public records and are not endorsements.
Industry payment share ranges from 43% in Ohio to 19% in Massachusetts, among states with 25 or more providers.
There are 591 Addiction Medicine (Internal Medicine) providers with active NPI records across all 50 states and Washington DC, according to federal NPPES data refreshed monthly. California has the most at 72.
183 of 591 Addiction Medicine (Internal Medicine) providers nationally (31%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program. The share is highest in Ohio at 43% and lowest in Massachusetts at 19%.
Provider counts 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.
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