Team

At Aspen Orthopedic Specialists, our team of specialty-trained doctors, physician assistants, and staff is dedicated to providing our patients with the compassionate, experienced bone, joint, and muscle care they deserve, every step of the way.

Our Doctors

Retired Doctors

  • Photo: Susan M. Larson, M.D.

    Susan M. Larson, M.D., Emeritus

  • Photo: James P. Wood, M.D.

    James P. Wood, M.D., Emeritus

Our Physician Assistants

Joel J. Dreier, P.A.-C.

  • Bachelor of Science in Kinesiology: University of Wisconsin – Madison, Madison, WI
  • Master of Science in Educational Administration and Policy Analysis: University of Wisconsin – Madison, Madison, WI
  • Bachelor of Science, Physician Assistant Program: University of Wisconsin – Madison, Madison, WI
  • Board Certification: National Commission on Certification of Physician Assistants
  • Board Certification: National Athletic Trainers' Association
  • American Academy of Physician Assistants

Margaret R. Rangel, P.A.-C.

  • Bachelor of Business Administration in Marketing: University of Wisconsin, Madison, WI
  • Bachelor of Science, Physician Assistant: University of Wisconsin, Madison, WI
  • Board Certification: National Commission on Certification of Physician Assistants
  • American Academy of Physician Assistants

Cori G. Welch, P.A.-C.

  • Bachelor of Arts in Kinesiology With Emphasis in Athletic Training and Minor in Biology: University of Northern Colorado, Greeley, CO
  • Master of Science in Physician Assistant Studies: Finch University of Health Sciences/Chicago Medical School, North Chicago, IL
  • Board Certification: National Commission on Certification of Physician Assistants
  • American Academy of Physician Assistants