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Dr. John Farnen, MD

Dr. John Farnen, MD

Age 66 Hematology M
(2) 2 reviews
Accepting New Patients


Dr. John Farnen, MD is a hematology specialist in La Crosse, WI. Dr. Farnen completed a residency at Tulane University Hospital and Clinics. He currently practices at Gundersen Health System and is affiliated with Crossing Rivers Health Medical Center. Dr. Farnen is board certified in Hematology.


  • University of Michigan Hospitals, Fellowship Hospital
  • Tulane University Hospital and Clinics, Residency Hospital — 1986
  • Creighton U, Internship Hospital — 1983
  • Creighton University School of Medicine, Medical School — 1982

Insurance Accepted

  • Anthem
  • Blue Cross Blue Shield of Minnesota
  • CareFirst Blue Cross Blue Shield

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These providers are on the medical staff of Mayo.

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Frequently Asked Questions

Dr. Farnen frequently treats Erythropoietin Test, Anemia and Iron Deficiency Screening, and Non-Hodgkin's Lymphoma.  

Find contact information here to make an appointment.

Hospital Affiliations

  • Crossing Rivers Health Medical Center
  • Gundersen Lutheran Medical Center
  • Gundersen Palmer Lutheran Hospital And Clinics
  • Vernon Memorial Hospital


  1. Gundersen Health System

    1. 1
      Gundersen Health System
      1836 South Ave, La Crosse, WI 54601 (651) 565-4531
  1. Gundersen Hlth Sys Tomah Clin

    1. 2
      Gundersen Tomah Clinic
      1910 S Avenue, Tomah, WI 54660 (608) 372-4111
  1. Gundersen Hlth System Neph

    1. 3
      Gundersen Air
      1900 South Ave, La Crosse, WI 54601 (507) 895-6610
  1. Gundersen Lutheran Viroqua Clinic

    1. 4
      Gundersen Lutheran Viroqua Clinic
      407 S Main St, Viroqua, WI 54665 (608) 637-3195