Clinic Locations


  • 1110 Seventh Avenue
    Cumberland, Wisconsin 54829
Main: (715) 822-7200
Toll-free: (800) 694-0972
Fax: (715) 822-7201
Office Hours: 8 am - 5 pm
24/7 Emergency Room


Clinic - Cumberland

  • 1110 Seventh Avenue
    Cumberland, WI 54829
Main: (715) 822-7500
Toll-free: (800) 924-6715
Office Hours: Monday - Friday: 8am - 5pm
Saturday: 8am - 11:30am


Clinic - Turtle Lake

  • 632 US Highway 8
    PO Box 175
    Turtle Lake, WI 54889
Main: (715) 986-2022
Office Hours:
Monday - Friday: 8am - 5pm


Emergency Medicine

Gregory Leitheiser, MD

Family Practice
Appointment Information
(715) 822-7500; Accepting New Patients
MD: Medical College of Wisconsin, Wauwatosa, WI. 1982
Residency: Charleston Naval Hospital Family Practice Residency, 1987
Board Certification - Family Practice
Patient Testimonials

“I have had Dr. Leitheiser as my main doctor for approximately 20 years with no complaints whatsoever! The whole staff is great!”

"Dr. Leitheiser is a very good listener."

"Dr. Leitheiser's dedication to his craft for the last 25 years has been very admirable."

"Dr. Leitheiser is always willing to take the time to teach by explaining important concepts and disease processes."

"Dr. Leitheiser was very thorough and very kind.  He answered all my questions and even sat down with my son to watch football on TV while we waited for the ultrasound tech."

"Dr. Leitheiser as always was wonderful and caring. He cares for you as a person and not just a patient."