Visiting Specialists

For your convenience, the following specialty providers see and treat patients at Glacial Ridge Health System.

Allergy and Immunology
Dr. Brian Brennan specializes in the diagnosis and treatment of allergies, asthma, and related disorders of adults and children. 

Cardiology
The following physicians specialize in the diagnosis and treatment of heart and circulatory problems:

  • Richard Backes, M.D.
  • Jacob Dutcher, M.D.
  • Richard Jolkovsky, M.D.
  • John Mahowald, M.D.
  • Mark Martone, M.D.
  • Joe Nguyen, M.D.
  • Jamie Pelzel, M.D.
  • Wade Schmidt, M.D.
  • Timothy Schuchard, M.D.
  • Howard Zimring, M.D.

Dermatology
Dr. Rachel Schuneman specializes in treating conditions that affect the skin, hair, and nails.

Diagnostic Radiology
The following physicians specialize in the interpretation of X-Rays, CT Scans, MRI, Ultrasound and Nuclear Medicine:

  • Kamran Khaghany, M.D.
  • Tom Larson, M.D.
  • James A. Matter, M.D.
  • Vali Orandi, M.D.

ENT
Dr. Martin Janning specializes in the diagnosis and treatment including surgery of ear, nose, throat, face, or neck conditions.

Interventional Pain & Physical Medicine
The following physicians specialize in the diagnosis and treatment of acute and chronic pain conditions:

  • Thomas Kowalkowski, D.O., FIPP
  • John Husted, PhD, L.P.

Neurology
Dr. Kathleen Rieke specializes in the diagnosis and treatment of neurological problems.

Oncology
Dr. Girum Lemma specializes in the diagnosis and treatment of cancer.

Ophthalmology
Dr. John Dvorak specializes in the diagnosis and treatment of eye problems and performs surgical repair of the eye, including cataract surgery.

Orthopedics
The following physicians specialize in the care of the musculoskeletal system (bones, joints, muscles, tendons & ligaments) including surgery:

  • Patrick Hurley, D.O.
  • Eric Nelson, M.D.

Pathology
The following physicians specialize in the interpretation of laboratory tissue and bodily fluid analysis:

  • Lee Cafferty, M.D.
  • Kent Donelan, M.D.
  • Patricia Hoeft, M.D.
  • Steven Vanderwerf, M.D.

Podiatry (Foot, Ankle and Toes)
The following physicians specialize in the disease and ailments of the foot, ankle and toes including surgery:

  • Kevin Holton, D.P.M.

Sleep Studies
Dr. Martin Janning specializes in the diagnosis and treatment of sleep disorders. Dr. Janning is an ENT specialist.

Urology
Dr. Kurt Hansberry specializes in the treatment of the kidney, bladder and associated structures diseases including surgery.

To schedule an appointment with a specialist, call 320.634.4521.