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Geriatric Medicine Doctors (Family Medicine) in Wisconsin

Data updated monthly · Last refresh October 2026

16 Geriatric Medicine (Family Medicine) providers practice in Wisconsin, including 4 (25%) offering telehealth. The largest concentration is in Appleton. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.

16providers
4telehealth
Appletontop city

Geriatric Medicine (Family Medicine) by city in Wisconsin

Choose a city to see providers there.

Geriatric Medicine (Family Medicine) in Appleton2 providers
Geriatric Medicine (Family Medicine) in Fond Du Lac2 providers
Geriatric Medicine (Family Medicine) in Two Rivers1 providers
Geriatric Medicine (Family Medicine) in Marinette1 providers
Geriatric Medicine (Family Medicine) in Spooner1 providers
Geriatric Medicine (Family Medicine) in Fitchburg1 providers
Geriatric Medicine (Family Medicine) in Janesville1 providers
Geriatric Medicine (Family Medicine) in Monroe1 providers
Geriatric Medicine (Family Medicine) in Milwaukee1 providers
Geriatric Medicine (Family Medicine) in Sun Prairie1 providers
Geriatric Medicine (Family Medicine) in Menasha1 providers
Geriatric Medicine (Family Medicine) in West Bend1 providers
Geriatric Medicine (Family Medicine) in Hartford1 providers
Geriatric Medicine (Family Medicine) in Waupaca1 providers

Where Geriatric Medicine Doctors (Family Medicine) in Wisconsin practice

From CMS Medicare enrollment records covering 9 of the 16 providers listed here (56%). Providers who do not bill Medicare are not included in these figures.

Largest practice groups

Group (as registered with Medicare)Geriatric Medicine Doctors (Family Medicine)All clinicians in groupMain city
Thedacare, Inc.orporated3654Appleton
Mercy Health System Corp.oration2749Janesville

Hospitals where they hold privileges

HospitalCityOwnershipCMS star ratingGeriatric Medicine Doctors (Family Medicine) affiliated
Thedacare Regional Med Ctr - NeenahNeenahNonprofit4 of 52
Mercy Health System Corp.JanesvilleNonprofit3 of 52
Thedacare Medical Center - ShawanoShawanoNonprofit4 of 52

Sources: CMS Doctors and Clinicians (August 2026) and Facility Affiliation files (August 2026); hospital ownership type and overall star rating from CMS Hospital General Information (July 2026). A clinician in several groups is counted once, in the largest group they bill through. Ownership type is what the hospital reports to CMS; it does not show private equity or other investor ownership. How we build this directory.

Geriatric Medicine (Family Medicine) providers in Wisconsin

Listed by city, largest first. 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. Abisoye Adebayo, MD
Appleton, WI · No drug or device payments recorded (2025) · (920) 225-7875
Dr. Shayna Kamin, DO
Appleton, WI · No drug or device payments recorded (2025) · (920) 225-7875
Dr. Irene Hamrick, MD
Fitchburg, WI · $33 in drug and device payments (2025) · (608) 241-9020
Dr. Gay Trepanier, MD
Fond Du Lac, WI · No drug or device payments recorded (2025) · (920) 929-8120
Dr. Marcie Janz, APNP
Fond Du Lac, WI · No drug or device payments recorded (2025) · (920) 929-8120
Dr. Monica Stout, M.D.
Hartford, WI · No drug or device payments recorded (2025) · Telehealth · (877) 279-5960
Dr. Arthur Altbuch, M.D.
Janesville, WI · No drug or device payments recorded (2025) · (608) 755-7960
Dr. Sarwat Jabeen, M.D.
Marinette, WI · No drug or device payments recorded (2025) · (715) 732-2299
Dr. John Barkmeier, MD
Menasha, WI · No drug or device payments recorded (2025) · (920) 832-8500
Dr. John Trimberger, M.D.
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 672-1353
Dr. David Rebedew, MD
Monroe, WI · No drug or device payments recorded (2025) · (608) 324-2000
Dr. Mark Van Etten
Spooner, WI · No drug or device payments recorded (2025) · (715) 635-2151
Dr. Melissa Ricker-bouche, MD
Sun Prairie, WI · No drug or device payments recorded (2025) · Telehealth · (608) 837-2206
Dr. Tracy Sherman, M.D.
Two Rivers, WI · $66 in drug and device payments (2025) · Telehealth · (920) 793-2281
Dr. Ellen Wenberg, M.D.
Waupaca, WI · $21 in drug and device payments (2025) · Telehealth · (715) 258-1160
Dr. Jean Frizzell
West Bend, WI · No drug or device payments recorded (2025) · (262) 334-3451

Common questions

How many Geriatric Medicine (Family Medicine) providers are in Wisconsin?

There are 16 Geriatric Medicine (Family Medicine) providers with active NPI records practicing in Wisconsin, according to federal NPPES data refreshed monthly.

Do Geriatric Medicine (Family Medicine) providers in Wisconsin offer telehealth?

Yes. 4 of the 16 Geriatric Medicine (Family Medicine) providers in Wisconsin (about 25%) report offering telehealth services in CMS data.

Which cities in Wisconsin have the most Geriatric Medicine (Family Medicine) providers?

Appleton (2), Fond Du Lac (2), Two Rivers (1) have the highest concentration of Geriatric Medicine (Family Medicine) providers in Wisconsin.

Where does this data come from?

Provider counts and profiles 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.

Which hospitals do Geriatric Medicine Doctors (Family Medicine) in Wisconsin work at?

According to CMS facility affiliation records, the Wisconsin hospitals where the most Geriatric Medicine Doctors (Family Medicine) hold privileges are Thedacare Regional Med Ctr - Neenah in Neenah; Mercy Health System Corp. in Janesville; Thedacare Medical Center - Shawano in Shawano.

Related reading on HealthcareDiscovery.AI

Geriatric Medicine (Family Medicine) in all 50 states Search all 16 in the directory Ask Zach for help choosing

Related

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. Are you a Geriatric Medicine (Family Medicine) in Wisconsin? Get featured.