Members of the Morris Hospital Medical Staff are highly educated and trained providers that have completed an extensive credentialing and privileging process confirming their competence and professionalism. Providers are then continuously evaluated through extensive monitoring and compliance audits in order to ensure that the patient care provided at Morris Hospital is and remains Excellent. Many members of the Medical Staff also participate in indirect patient care processes providing their medical expertise to several committees, process improvement efforts and long-term planning for the service area.
2026 Medical Staff Officers:

John Williamson, D.O.
President

Ian Best, M.D.
Vice President

Robert MacNab, D.P.M.
Secretary/Treasurer

Mary Fitzgibbon, M.D.
Immediate Past President
2026 Medical Staff Department/Committee Chiefs:
- Department/Committee of Emergency Medicine – John Thompson, M.D.
- Department/Committee of Pediatrics –
Melissa Hill, M.D. - Department/Committee of Medicine –
David Vermillion, M.D. - Department/Committee of Obstetrics & Gynecology – Andrea Chen, M.D.
- Department/Committee of Radiology and Pathology – Michael Jachec, M.D.
- Department/Committee of Surgery and Anesthesia –Mir Ali, M.D.
2026 Medical Staff Committee Chairpersons:
- Bylaws Committee – Kyle Pearson, D.P.M.
- Cardiology Committee –Mostafa Ghanim, M.D.
- Code Blue Committee – David Vermillion, M.D.
- Endoscopy Committee – Afreen Hyder, M.D.
- Ethics Committee – Michael Jachec, M.D.
- Immediate Care/Occupational Medicine – Anthony Leazzo, D.O.
- Infection Control Committee – John Bolden, M.D.
- Medical Records/Utilization Review Committee – Ian Best, M.D.
- Nominating Committee – Mary Fitzgibbon, M.D.
- Pharmacy & Therapeutics Committee – Richard Johnson, M.D.
- Physician Assistance Committee – Leticia Setrini-Best, M.D.
- Professional Practice Evaluation (Peer Review) Committee – Stephen Treacy, M.D.
- Quality Committee – Farrukh Aijaz, M.D.
- Stroke Committee – John Thompson, M.D.
Credentialing
Morris Hospital & Healthcare Centers’ Medical Staff Office offers this online primary source verification service to other hospitals, health care organizations and credentialing agents.
Note: This service is for our Illinois facilities only and is not intended for use by patients or other visitors.
For further assistance, contact our medical staff office at 815-705-7222.