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Anesthesiology in West Allis, Wisconsin

Data updated monthly · Last refresh September 2026

29 Anesthesiology providers practice in West Allis, and 14% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.

Anesthesiology providers in West Allis

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. Abel Chinos, MD
West Allis, WI · No drug or device payments recorded (2025) · (414) 328-6000
Dr. Ayse Kula, M.D
West Allis, WI · No drug or device payments recorded (2025) · (414) 328-6000
Dr. Bret Borowski, M.D.
West Allis, WI · No drug or device payments recorded (2025) · (414) 328-6000
Dr. Catherine Kuo, M.D.
West Allis, WI · No drug or device payments recorded (2025) · (414) 805-8700
Dr. Chenyang Zhang, MD
West Allis, WI · $3,223 in drug and device payments (2025) · (414) 328-6000
Dr. Clifford Opatken, M.D.
West Allis, WI · No drug or device payments recorded (2025) · (414) 328-6000
Dr. Craig Pierstorff, M.D.
West Allis, WI · No drug or device payments recorded (2025) · (414) 443-2732
Dr. Daniel Hellman, M.D.
West Allis, WI · No drug or device payments recorded (2025) · (414) 321-7850
Dr. Daniel Smullen, M.D.
West Allis, WI · No drug or device payments recorded (2025) · (414) 329-4300
Dr. Eduards Vucins, M.D.
West Allis, WI · No drug or device payments recorded (2025) · (414) 328-6000
Dr. Eric Hoyme, MD
West Allis, WI · $164 in drug and device payments (2025) · (414) 329-4399
Dr. James Rusch, M.D.
West Allis, WI · No drug or device payments recorded (2025) · (414) 328-6000
Dr. John Amuzu, M.D.
West Allis, WI · No drug or device payments recorded (2025) · (414) 328-6000
Dr. Jon Brethauer, D.O.
West Allis, WI · No drug or device payments recorded (2025) · (414) 328-6000
Dr. Joshua White, M.D.
West Allis, WI · $1,517 in drug and device payments (2025) · (414) 328-6000
Dr. Katie Tuler, MD
West Allis, WI · No drug or device payments recorded (2025) · (414) 329-4300
Dr. Kirsten Simanonok, MD
West Allis, WI · No drug or device payments recorded (2025) · (414) 328-6000
Dr. Lily Qian, MD
West Allis, WI · No drug or device payments recorded (2025) · (414) 328-6000
Dr. Mark Nelson, M.D.
West Allis, WI · No drug or device payments recorded (2025) · (414) 328-6000
Dr. Mark Schaefer, M.D.
West Allis, WI · No drug or device payments recorded (2025) · (414) 329-4300
Dr. Mark Wilcox, M.D.
West Allis, WI · $26 in drug and device payments (2025) · (414) 328-6000
Dr. Michael Stanton
West Allis, WI · No drug or device payments recorded (2025) · (414) 328-6000
Dr. Nathan Gabler, M.D.
West Allis, WI · No drug or device payments recorded (2025) · (414) 328-6000
Dr. Nicholas Foster
West Allis, WI · No drug or device payments recorded (2025) · (414) 328-6000
Dr. Randall Yale, M.D.
West Allis, WI · No drug or device payments recorded (2025) · (414) 328-6000
Dr. Robert Olson
West Allis, WI · No drug or device payments recorded (2025) · (414) 328-6000
Dr. Robert O'quinn, M.D.
West Allis, WI · No drug or device payments recorded (2025) · (414) 328-6000
Dr. Thomas Langer, MD
West Allis, WI · No drug or device payments recorded (2025) · (414) 328-6000
Dr. Vera Slavic-svircev, M.D.
West Allis, WI · No drug or device payments recorded (2025) · (414) 328-6000

Common questions

How many Anesthesiology providers are in West Allis, Wisconsin?

There are 29 Anesthesiology providers with active NPI records practicing in West Allis, according to federal NPPES data refreshed monthly.

How many Anesthesiology providers in West Allis received drug or device company payments?

4 of 29 (14%) 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 West Allis Anesthesiology across Wisconsin

Try a city like Tucson, a zip like 85016, or a specialty like psychiatry. For a doctor by name, use the full search.
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.