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Cytopathology Providers in the United States

Data updated monthly · Last refresh September 2026

531 Cytopathology providers practice across all 50 states and Washington DC, and 11% received drug or device company payments in 2025. California has the most at 76. Listings are drawn from federal public records and are not endorsements.

531providers
36states
11%with industry payments

Industry payment share ranges from 21% in Texas to 4% in Pennsylvania, among states with 25 or more providers.

Cytopathology providers by state

StateProvidersReceived payments
Cytopathology in California769%
Cytopathology in New York557%
Cytopathology in Texas3821%
Cytopathology in Massachusetts336%
Cytopathology in Florida2818%
Cytopathology in Pennsylvania274%
Cytopathology in Illinois2615%
Cytopathology in Michigan23not reported
Cytopathology in New Jersey17not reported
Cytopathology in Ohio16not reported
Cytopathology in Washington16not reported
Cytopathology in Maryland15not reported
Cytopathology in Colorado13not reported
Cytopathology in Virginia12not reported
Cytopathology in Connecticut11not reported
Cytopathology in Wisconsin10not reported
Cytopathology in North Carolina10not reported
Cytopathology in Louisiana10not reported
Cytopathology in Tennessee10not reported
Cytopathology in Minnesota9not reported
Cytopathology in Georgia9not reported
Cytopathology in Missouri8not reported
Cytopathology in Kentucky8not reported
Cytopathology in Washington DC6not reported
Cytopathology in Iowa5not reported
Cytopathology in New Mexico5not reported
Cytopathology in Arizona5not reported
Cytopathology in Mississippi4not reported
Cytopathology in Utah4not reported
Cytopathology in South Carolina4not reported
Cytopathology in Rhode Island3not reported
Cytopathology in Oregon3not reported
Cytopathology in Hawaii3not reported
Cytopathology in Oklahoma3not reported
Cytopathology in Nevada3not reported
Cytopathology in Arkansas3not reported

Common questions

How many Cytopathology providers are there in the United States?

There are 531 Cytopathology providers with active NPI records across all 50 states and Washington DC, according to federal NPPES data refreshed monthly. California has the most at 76.

What share of Cytopathology providers received drug or device company payments?

58 of 531 Cytopathology providers nationally (11%) 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 Texas at 21% and lowest in Pennsylvania at 4%.

Where does this data come from?

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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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.