Medical Staff Leadership

Alex W. Johnson, MD
Richard R. Randall, MD
Vice Chair
Suresh Karne, MD

Medical Executive Committee

  • Alex W. Johnson, MD, Chair
  • Richard R. Randall, MD, Vice-Chair
  • Suresh Karne, MD, Secretary
  • Joseph W. Clark, MD, Orthopedic Surgery Services
  • Lon Haskell, MD, Department of Family Medicine
  • Darrin L. Johnson, MD, Department of Radiology
  • Jeffery S. Johnson, MD, Madison Hospital
  • Michael McFadden, MD, Department of Surgery
  • Sudheer R. Kantharajpur, MD, Hospitalist Services
  • Jason Smith, MD, Department of Medicine
  • Scariya Kumaramangalam, MD, Department of Psychiatry
  • Lee D. Morris, MD, Department of Pediatrics
  • L. Allen Perkins, MD, Department of Pathology
  • Jeffory J. Prylinski, DO, Department of Anesthesiology
  • Helen Robinson, MD, Department of Emergency Medicine
  • John David Wheeler, MD, Department of Obstetrics and Gynecology

Institutional Review Committee

The Institutional Review Committee is a committee of the Health Care Authority of the City of Huntsville. It is empowered by the Authority to review, evaluate, approve or disapprove any and all drugs, devices, procedures or studies for use on human subjects, which are considered to be experimental. It is also the responsibility of the Committee to provide administrative oversight to insure that procedures designed for the protection of patient rights are being effectively applied.

The Institutional Review Committee is comprised of 12 members (and alternatives) of various backgrounds and disciplines, including lay members from the community, medical staff physicians and hospital employees.

For further information regarding the Institutional Review Committee, please contact Allison Greene, IRC Coordinator, at (256) 265-6990 or email This email address is being protected from spambots. You need JavaScript enabled to view it..

Committee Members

  • Joe Campbell, Hospital Counsel
  • James Chambers, MD, Family Practice
  • Robert W. Chappell, Jr., MD, Chief Medical Officer/Chief Quality Officer
  • John B. Cox, MD, Chair, Ophthalmologist
  • Frank Franz, PhD, Former President, UA Huntsville
  • James C. Gilbert, MD, Pediatric Surgeon
  • W. Herbert Haught, MD, Cardiologist, Heart Center, Inc.
  • Gregg Knowles, PharmD, Pharmacy
  • Peggy Matzkiw, RN, Nursing Administration
  • Marshall Schreeder, MD, Hematologist/Medical Oncologist, Clearview Cancer Institute
  • Rev. Murray Wilton, PhD, Clergy
  • Charles Wyman, PhD, Consultant, Electrical Engineer


  • Marcia Dupree, RN, Nursing Administration
  • Matthew Eckley, PharmD, Pharmacy
  • Kenneth Graves, Vice President, Legal Services and Corporate Compliance