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Froedtert & the Medical College of Wisconsin health network is pleased to welcome Drs. Eric Boehmer, Sonya Hollingsworth, Mary Gentine, Steve Staehling, Xia Vang and Katelin Krystowiak to our health network starting Monday, Nov.1. Also joining will be advanced practice providers (APPs) Colleen Gumm, Courtney Johnson, Melissa Krause, Carmen Ruiz, Dana Waters, Angela David and Noah Slife.

These providers have practiced in the Sheboygan area for many years and bring with them vast experience in primary care and family medicine. They will see patients at new locations in the area, with plans to return to the Sheboygan area in 2023. Their addition will complement and grow the Froedtert & MCW health network's presence in the greater-Sheboygan community, which currently includes a Froedtert & MCW FastCare® health clinic.


These providers will begin seeing patients on Nov. 8. Scheduling is now available. To schedule call 414-805-6644.

Location and Provider Information

Sheboygan West Bend Manitowoc Mequon Port Washington
(opening early 2022)
(opening early 2022)
Eric D. Boehmer, MD, PhD Returning in 2023   X X X  
Mary Gentine, MD   X X X  
Sonya Hollingsworth, MD   X      
Katelin Krystowiak, MD   X   X  
Xia Vang, MD   X      
Melissa Krause, APP X          
Colleen Gumm, APP X          
Carmen Ruiz, APP X          
Courtney Johnson, APP X          
Steve Staehling, MD   X X X X Returning in 2023
Dana Waters, APP X         X

Angela David and Noah Slife, both advanced practice providers, will begin practicing at Froedtert & MCW Urgent Care locations in November and December, respectively.

Accepted Insurance Plans

Froedtert & the Medical College of Wisconsin health network accepts most insurances. It is important to verify coverage with your insurance company prior to having any service, treatment or procedure at one of our hospitals, health centers or clinics. View a list of accepted plans here.

Medical Records Transfer

If you plan to be a new patient to the Froedtert & Medical College of Wisconsin health network, we recommend that you arrange for your medical record to be sent to us ahead of time. You can do this by requesting a copy from your previous provider, and then sending it to us once received. Send it to Froedtert HIM, Hartford Health Center, Hartford, WI 53027. If preferred, records can also be faxed to 262-836-8498, attn: Froedtert HIM.

New Sheboygan Health Center

Check back for more information regarding the new Froedtert & MCW health center opening in Sheboygan in 2023!