HealthcareDiscovery.AI / Doctors / Wisconsin / Madison / Sleep Medicine (Internal Medicine)

Sleep Medicine (Internal Medicine) in Madison, Wisconsin

Data updated monthly · Last refresh September 2026

6 Sleep Medicine (Internal Medicine) providers practice in Madison. Listings are drawn from federal public records and are not endorsements.

Sleep Medicine (Internal Medicine) providers in Madison

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. Kenneth Casey, MD

Madison, WI · No drug or device payments recorded (2025) · (608) 232-3333

Dr. Mary Klink, MD

Madison, WI · No drug or device payments recorded (2025) · (608) 267-5950

Dr. Medhavani Chandra, MD

Madison, WI · $15 in drug and device payments (2025) · (608) 263-6400

Dr. Quinn Bongers, MD

Madison, WI · No drug or device payments recorded (2025) · (608) 263-6400

Dr. Shane Creado, M.D.

Madison, WI · $102 in drug and device payments (2025) · (608) 238-9354

Dr. Steven Barczi, MD

Madison, WI · No drug or device payments recorded (2025) · (608) 829-5201

Common questions

How many Sleep Medicine (Internal Medicine) providers are in Madison, Wisconsin?

There are 6 Sleep Medicine (Internal Medicine) providers with active NPI records practicing in Madison, according to federal NPPES data refreshed monthly.

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 Madison Sleep Medicine (Internal Medicine) across Wisconsin

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.