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Transitional Year Residency Team

Program Leaders

Lori Weber

Lori Weber, MD - Program Director

Get to know Dr. Weber

Lori was born and raised in Wisconsin, receiving her medical degree from the University of Wisconsin School of Medicine. After training in pediatrics at San Antonio Uniformed Services Health Education Consortium-Wilford Hall Air Force Base, Lori fulfilled a Health Professions Scholarship Program commitment at Minot AFB, North Dakota. After completing this, she returned to Wisconsin to join Gundersen Health System in La Crosse in 2004.

After working at Gundersen for one year, Lori began her medical education career as director of the Third Year Medical Student Pediatric Clerkship. She initially thought that was all that she could contribute to medical education at Gundersen. Then, in 2014, Lori was offered an opportunity to become the program director of the Transitional Year Residency. She jumped at the chance to lead resident education and has never looked back. Lori truly enjoys her time at Gundersen, which is now divided between guiding residents, organizing medical students in Pediatrics and taking care of her pediatric patients.

Lori loves being active by maintaining her strength and health as she trains for triathlons and goes on walks with her family and their dog. She also enjoys traveling with her family on memorable trips to Europe, Alaska, Hawaii and Colorado.

John Conzemius, MD, FACP - Associate Program Director

Originally from central Minnesota, John has been at Gundersen for over 20 years. He completed his Internal Medicine Residency here at Gundersen in 2003 after graduating from the University of Minnesota School of Medicine. John has been involved in both inpatient and outpatient medical student and resident education throughout his entire career at Gundersen. John joined the Transitional Year Residency Program team as the Associate Program Director in 2021.

In addition to serving as the Associate Program Director for the Transitional Year Program, John maintains a busy Internal Medicine primary care practice, serves as a rotating attending for the Inpatient Internal Medicine teaching service and is an attending for the Internal Medicine Residency Continuity Clinic.

In his spare time, he enjoys all that the La Crosse area has to offer with hiking, biking, golfing, skiing, snowshoeing, boating, and attending theatre and musical productions. He also “enjoys” the endless home and property repair of the wear and tear incurred by his three children and 2 Labradors!

Johanna Berg

Johanna Berg
Program Coordinator
[email protected]

Program Overview

2021-2022 Residents

  • Ian Armstrong, M.D.

    Hometown: New York, New York

    Medical School: Albert Einstein College of Medicine

    Advanced Residency: Radiology – Massachusetts General Hospital

  • Michael Chmielewski, M.D.

    Hometown: Duluth, Minnesota

    Medical School: University of Vermont

    Advanced Residency: Dermatology – University of Minnesota

  • Jennifer Dens Higano, M.D.

    Hometown: Brainerd, Minnesota

    Medical School: Mayo Clinic School of Medicine

    Advanced Residency: Physical Medicine & Rehabilitation – Mayo Clinic

  • Andrew Ernst, M.D.

    Hometown: La Crosse, Wisconsin

    Medical School: Medical College of Wisconsin

    Advanced Residency: Physical Medicine & Rehabilitation – Stanford University

  • Kelsey Frechette, M.D.

    Hometown: Rochester, Minnesota and Minneapolis, Minnesota

    Medical School: Mayo Clinic School of Medicine

    Advanced Residency: Radiation Oncology – Mayo Clinic

  • Elijah Germo, M.D.

    Hometown: Mapleton, Minnesota

    Medical School: University of Minnesota

    Advanced Residency: Anesthesiology – Mayo Clinic

  • Brandon Johnson, M.D.

    Hometown: Indianola, Iowa

    Medical School: University of Iowa

    Advanced Residency: Physical Medicine & Rehabilitation – Mayo Clinic

  • Nathanial Johnson, M.D.

    Hometown: Indianola, Iowa

    Medical School: University of Iowa

    Advanced Residency: Physical Medicine & Rehabilitation – Mayo Clinic

  • Sara Kullberg, M.D.

    Hometown: Chanhassen, Minnesota

    Medical School: University of Minnesota

    Advanced Residency: Dermatology – University of Minnesota

  • Jacob Ryall, M.D.

    Hometown: Beaumont, Texas

    Medical School: McGovern Medical School - University of Texas Health Science Center

    Advanced Residency: Anesthesiology – Northwestern University

  • Blake Sarrazin, M.D.

    Hometown: Ozark, Missouri

    Medical School: University of Missouri - Columbia

    Advanced Residency: Radiology – University of Kansas

  • Jennifer Tran, M.D.

    Hometown: Dallas, Texas

    Medical School: University of Wisconsin - Madison

    Advanced Residency: Dermatology – University of Wisconsin - Madison

Meet Our Recent Graduates

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1900 South Ave.
La Crosse, WI 54601

(608) 782-7300

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