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
    • Quality committee
    • Finance committee
    • Provider Review Committee
    • Administrative team

Board of Managers

Brian Hall, MD

AHN Board Chair
Anesthesiology Associates

Jamie Grebosky, MD

Senior Vice President and Chief Medical and Quality Officer, Asante

Chris Morgan, MD

Asante Physician Partners, Internal Medicine and Pediatrics

Mel Castillo, MD

Oregon Surgical Specialists

Mary Strizzi, DO

Medford Women’s Clinic

Matt Hough, MD

Southern Oregon Pediatrics

Doug Ward

Vice President, Asante Physician Partners and Asante Health Network

Roy Vinyard

Interim CEO of Asante

Allison Loudermilk, MD
Vista Pathology
Mujahid Rizvi, MD
Hematology/Oncology Associates
Eric Loeliger, MD

Vice President Operations and Medical Officer, Asante Three Rivers Medical Center

Adam Mougey, MD

Gastroenterology Consultants

Quality Committee

Megan Frost, MD

AHN Committee Chair
Asante Physician Partners, General Surgery

Nichole Steidler, MD

Vista Pathology

Sue Hagar, MD

Asante Physician Partners, Family Medicine

Mark Miller, MD

Oregon ENT

Eric Chatfield, MD
Three Rivers Radiology

Mary Strizzi, DO

Medford Women’s Clinic

Minal Jaju, MD
Southern Oregon Hospitalists

Bill Edwards

Director Population Health, Asante Health Network

Cassy Leach, RN

Director Ambulatory Quality & Nursing, Asante Health Network

Cory Maukonen, RN

Clinical Integration Program Manager, Asante Health Network

Finance Committee

Amity Williamson
Southern Oregon Hospitalists

Doug Ward

Vice President, Asante Physician Partners and Asante Health Network

Joe Atzenbeck
Clinic for Dermatology & Wellness

Michelle Walkup

Hematology Oncology Associates

Mike Tripp
Three Rivers Radiology
Rachelle Sinclair
Southern Oregon Chiropractic

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

Asante Health Network Jamie Grebosky

Jamie Grebosky, MD

Senior Vice President and Chief Medical and Quality Officer, Asante

Heather Rowenhorst

Heather Rowenhorst

Senior Vice President and Chief Finance Officer

Doug Ward

Doug Ward

Vice President, Asante Physician Partners and Asante Health Network

Connor Ashmun

Connor Ashmun

Decision Support Analyst I

Photo coming soon

Bethany Coz

Operations Program Manager

Asante Health Network Bill Edwards

Bill Edwards

Director Population Health

Jared Hill

Jared Hill

Director Business Development

Cassey-Leach-AHN

Cassy Leach, RN

Director Ambulatory Quality & Nursing

Asante Health Network Cory Maukonen
Cory Maukonen, RN

Clinical Integration Program Manager

Asante Health Network Andrew Porter

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
Asante Health Network Brian Hall

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Our staff is happy to answer questions and provide additional information. Please contact us about any aspect of Asante Health Network.

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