Our Staff




Shannon Dieffenderfer - Physician Associate

Degree(s): Bachelor of Science – Biology, Master of Physician Assistant Studies
College: Georgia State University, Philadelphia College of Osteopathic Medicine PA Program
Specialty: Family Medicine, Urgent Care
With CRMC: Since May 2021

Robin Morris - Physician Assistant

Degree(s): Bachelor of Clinical Health service and Physiican Assistant Studies
College: University of Washington, MEDEX Nortthwest Physician Assistant Program
Specialty: Urgent Care, Family Pracitce, Hospital Medicine
With CRMC: Since April 2021

Morgan Iwema - Physician Assistant

Degree(s): BS Biology, Master of Science in Medicine
College: Trevecca Nazarene University PA Program
Specialty: Family Practice
Special Clinical Interests: Patient Education, Preventative Medicine
With CRMC: Since 2020

Delta Junction

John Fraley - Physician Assistant

Degree(s): BA in English Education, Physician Assistant Certificate
College(s): Cedarville University, Kettering College of Medical Arts
Specialty: Emergency Medicine
Special clinical interests: Trauma
Spoken language(s): English
With IAMC: Since September 2014

Sean Richardson - DO

Degree(s): Doctorate of Osteopathic Medicine, Bachelors of Science in Biochemistry
Undergraduate: Washington State University
Graduate School: Pacific Northwest University College of Osteopathic Medicine
Board Certified: Family Medicine
Specialty Interests: Broad spectrum and holistic medicine
With IAMC: Since 2018

Verna Schad - Nurse Practitioner

Degree(s): Certified Nurse Practitioner
College: South Dakota State University
Specialty: Family Practice
Special clinical interests: Mental Health, Women’s Health, Urgent Care, Pediatrics
With IAMC: Since August 2016

North Country

Dede Duntze - Nurse Practitioner

Degree(s): MSN, BSN
College: University of Alaska, Anchorage
Specialty: Rural health
Special clinical interests: Family medicine
With CRMC: From 1986-1999 as RN, since 2001 as an ANP