Our Physician Leadership

To best serve our patients and community, our team of chiefs of service, medical directors and medical officers bring guidance to our leadership team.

Drawn from all areas of practice and expertise, these teams ensure that organizational decisions are always in the best interests of our patients.

Medical Directors

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Sam D. Cloud, DO
Doctors, Physician Leadership, Medical Officers, Emergency Department, Executive Team
Chief Medical Officer
Attending Physician, Emergency Department
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Michael R. Cummings, MD
Doctors, Behavioral Health, Mental Health and Psychiatry, Physician Leadership, Chiefs of Service, Medical Officers, Medical Directors
Immediate Past President, Associate Medical Director
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Mandip Panesar, MD
Doctors, Physician Leadership, Medical Directors
Chief Medical Information Officer, Associate Medical Director
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Medical Officers

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Michael A. Manka Jr., MD
Doctors, Physician Leadership, Chiefs of Service, Medical Officers, Emergency Department
President Elect
Chief of Emergency Medicine
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Michael R. Cummings, MD
Doctors, Behavioral Health, Mental Health and Psychiatry, Physician Leadership, Chiefs of Service, Medical Officers, Medical Directors
Immediate Past President, Associate Medical Director
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James Lukan, MD, FACS
Doctors, Renal Care, Outpatient Specialty Clinics, Trauma Center and Emergency Care, Surgery, Surgical Clinics, Physician Leadership, Chiefs of Service, Medical Officers
Secretary, Medical Executive Committee, Surgical Director, Vascular Access
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Sam D. Cloud, DO
Doctors, Physician Leadership, Medical Officers, Emergency Department, Executive Team
Chief Medical Officer
Attending Physician, Emergency Department
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Chiefs of Service

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Jeffrey Brewer, MD
Doctors, Outpatient Specialty Clinics, Trauma Center and Emergency Care, Surgery, Surgical Clinics, Physician Leadership, Chiefs of Service
Chief of Service
Department of Surgery
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Michael A. Manka Jr., MD
Doctors, Physician Leadership, Chiefs of Service, Medical Officers, Emergency Department
President Elect
Chief of Emergency Medicine
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Michael R. Cummings, MD
Doctors, Behavioral Health, Mental Health and Psychiatry, Physician Leadership, Chiefs of Service, Medical Officers, Medical Directors
Immediate Past President, Associate Medical Director
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Thom R. Loree, MD, FACS
Doctors, Cancer, Breast Oncology, Head and Neck Oncology, Oral Oncology and Maxillofacial Prosthetics, Plastic and Reconstructive Surgery, Surgery, Physician Leadership, Chiefs of Service
Chief of Department, Head and Neck Surgery and Plastic and Reconstructive Surgery
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Thomas C. Mahl, MD
Doctors, Outpatient Specialty Clinics, Gastroenterology Clinic, Physician Leadership, Chiefs of Service
Chief of Service, Gastroenterology
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James Lukan, MD, FACS
Doctors, Renal Care, Outpatient Specialty Clinics, Trauma Center and Emergency Care, Surgery, Surgical Clinics, Physician Leadership, Chiefs of Service, Medical Officers
Secretary, Medical Executive Committee, Surgical Director, Vascular Access
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William Belles, MD
Doctors, Outpatient Specialty Clinics, Otolaryngology (ENT) Clinic, Plastic and Reconstructive Surgery, Physician Leadership, Chiefs of Service
Chief of Service, Otolaryngology (ENT)
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Philip M. Stegemann, MD
Doctors, Orthopaedics and Sports Medicine, Physician Leadership, Chiefs of Service, Orthopaedic Clinic, Board of Directors, Members
Chief of Service, Orthopedics
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Maureen Sullivan, DDS
Doctors, Outpatient Specialty Clinics, Dental Clinic, Oral Oncology and Maxillofacial Prosthetics, Physician Leadership, Chiefs of Service, Homepage, Maxillofacial Prosthetics Fellowship
Attending Dentist
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