1,330 Clinical Pathology/Laboratory Medicine providers practice across all 50 states and Washington DC, and 15% received drug or device company payments in 2025. California has the most at 131. Listings are drawn from federal public records and are not endorsements.
Industry payment share ranges from 33% in Arizona to 5% in Wisconsin, among states with 25 or more providers.
There are 1,330 Clinical Pathology/Laboratory 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 131.
205 of 1,330 Clinical Pathology/Laboratory Medicine providers nationally (15%) 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 Arizona at 33% and lowest in Wisconsin at 5%.
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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