About Us
Governance
Asante Health Network’s governance structure includes a Board of Managers, a Quality Committee and a Finance Committee. Members of these committees reflect a blend of our independent and employed physicians and other health care leaders. They are recognized thought leaders who have a long-term vision for the health and prosperity of the communities we serve. There are ongoing opportunities for physicians and administrative leaders to participate in AHN governance.
AHN Governance Organizational Chart
Board of Managers
Brian Hall, MD
AHN Board Chair
Anesthesiology Associates
Senior Vice President and Chief Medical and Quality Officer, Asante
Asante Physician Partners, Internal Medicine and Pediatrics
Oregon Surgical Specialists
Mary Strizzi, DO
Medford Women’s Clinic
Southern Oregon Pediatrics
Doug Ward
Vice President, Asante Physician Partners and Asante Health Network
Roy Vinyard
Interim CEO of Asante
Vice President Operations and Medical Officer, Asante Three Rivers Medical Center
Adam Mougey, MD
Gastroenterology Consultants
Quality Committee
AHN Committee Chair
Asante Physician Partners, General Surgery
Nichole Steidler, MD
Vista Pathology
Asante Physician Partners, Family Medicine
Mark Miller, MD
Oregon ENT
Mary Strizzi, DO
Medford Women’s Clinic
Bill Edwards
Director Population Health, Asante Health Network
Cassy Leach, RN
Director Ambulatory Quality & Nursing, Asante Health Network
Clinical Integration Program Manager, Asante Health Network
Finance Committee
Doug Ward
Vice President, Asante Physician Partners and Asante Health Network
Michelle Walkup
Hematology Oncology Associates
Andrew Porter
Director Payer Strategy & Contracting, Asante Health Network
Bill Edwards
Director Population Health, Asante Health Network
Michael Crandell
Southern Oregon Cardiology
Kamee Wearden
Southern Oregon Neurosurgical & Spine Associates, PC
Provider Review Committee
Jamie Grebosky, MD
AHN Committee Chair
Senior Vice President and Chief Medical and Quality Officer, Asante
Mel Castillo, MD
Oregon Surgical Specialists
Eric Loeliger, MD
Vice President Operations and Medical Officer, Asante Three Rivers Medical Center
Allison Loudermilk, MD
Vista Pathology
Chris Morgan, MD
Asante Physician Partners, Internal Medicine and Pediatrics
AHN Administrative Team

Jamie Grebosky, MD
Senior Vice President and Chief Medical and Quality Officer, Asante

Heather Rowenhorst
Senior Vice President and Chief Finance Officer

Doug Ward
Vice President, Asante Physician Partners and Asante Health Network

Connor Ashmun
Decision Support Analyst I

Bethany Coz
Operations Program Manager

Bill Edwards
Director Population Health

Jared Hill
Director Business Development

Cassy Leach, RN
Director Ambulatory Quality & Nursing

Clinical Integration Program Manager

Andrew Porter
Director Payer Strategy & Contracting
“Participation in the Asante Health Network has opened up new opportunities to shape the direction of health care in Southern Oregon and beyond. I’m excited about the progress we’re making to engage with physicians on improving quality and lowering costs.”
– Brian Hall, MD, Anesthesiology, Anesthesia Associates, AHN Board of Managers
