The Pharmacy and Therapeutics (P&T) Committee

The purpose of the P&T Committee is to evaluate the relative safety, efficacy, and effectiveness of prescription drugs within a class of drugs and make recommendations to the state on the development of the Washington State Preferred Drug List. The committee also serve as the Medicaid Drug Utilization Review (DUR) Board as required by federal law.

P&T Committee/Medicaid DUR Board members

Laura Beste, PharmD, BCGP

(Term 2022 - 2024)

Laura Beste is a clinical pharmacist at MultiCare Health systems in Tacoma providing care for the community at Allenmore Hospital. Laura is a board-certified geriatric pharmacist as well as a Clinical Assistant Professor with the University of Washington School of Pharmacy and a preceptor for Washington State University School of Pharmacy. She is a member of the American Society of Health-System Pharmacists.

Virginia Buccola, DNP, ARNP

(Term 2018 - 2023)

Dr. Virginia Buccola-Tournay is a Family Psychiatric Mental Health Nurse Practitioner at Greater Lakes Mental Health Care in Lakewood where she provides psychiatric medication management for children and adults and serves as the Manager of Medical Services. She has a specialty focus in Perinatal and Early Childhood Mental Health. She has many years of nursing experience in Community Health, Maternal-Child Health, and Adult Inpatient Mental Health. She is an adjunct faculty with the University of Washington School of Nursing and active with AAPPN, the professional organization for psychiatric nurse practitioners.

Leah Marcotte, MD

(Term 2020-2022)

Dr. Leah Marcotte is the associate medical director of population health at UW Medicine, clinical assistant professor in the Department of Medicine at the University of Washington, and a primary care physician at the UW General Internal Medicine Center.  

Michael Corsilles, PA-C

(Term 2021-2024)

Dr. Corsilles practices family medicine at Vida Integrated Health in Bellevue. He is a naturopathic physician and a physician assistant practicing functional medicine in primary care. He is also a preceptor for the University of Washington's physician assistant program and an attending physician for Bastyr University's residency program at Vida Integrated Health.  

Susan Flatebo, PharmD, BCOP

(Term 2017 - 2022)

Susan Flatebo is a board certified oncology pharmacist at MultiCare Regional Cancer Center (MRCC) in Puyallup. She is involved with reviewing MRCC guidelines, and updates chemotherapy regimens within the Beacon/Epic software system. She is an affiliate faculty member with the University of Washington school of pharmacy.

Kavita Chawla, MD, FACP, MHA

(Term 2021-2024)

Dr. Chawla is a practicing internist at Virginia Mason Franciscan Health. She leads Virginia Mason Education Committee for ongoing, evidence-based clinical education for all Primary Care Providers. She is a faculty member for Virginia Mason Internal Medicine residents and Clinical Instructor for University of Washington medical students. She has a special interest in promoting and practicing equitable, high-value, cost-effective and evidence-informed care.


Jon MacKay, PharmD

(Term 2022 - 2024)

Dr. MacKay is a Board Certified Ambulatory Care Pharmacist and Pharmacy Director for the Native Project, an Urban Indian Health Clinic in Spokane.  His practice experience includes working in ambulatory care with indigenous populations in rural and urban locations in the Northwest as well as Federally Qualified Community Health Centers.  He is also a current voting P&T member for the Texas Association of Community Health Centers (TACHC), a Group Purchasing Organization.  He has a special interest working with underserved and indigenous communities in the Northwest.

Alexander Park, MD (Vice-Chair)

(Term 2018 - 2023)

Dr. Park is the Associate Medical Director for Care Management of the US Family Health Plan at Pacific Medical Centers (Seattle WA), where he is also a board-certified practicing internist. As a certified physician builder in the Epic EMR, he has led quality improvement initiatives at Pacific Medical Centers promoting the accuracy of medication reconciliation for patient safety. He teaches medical students and residents from the University of Washington and is active on the clinical faculty of the UW School of Medicine Division of General Internal Medicine.

Diane Schwilke, PharmD, BCACP

(Term 2017 - 2022)

Diane Schwilke is a board certified ambulatory care specialist pharmacist at Columbia Valley Community Health in Wenatchee, where she also serves as the Pharmacy Supervisor for the organization outpatient pharmacy. Her clinical roles include anticoagulation management as well as patient care through collaborative practice agreement. She is a member of the American Society of Health-System Pharmacists.

Jordan Storhaug, MD (Committee Chair)

(Term 2017 - 2022)

Jordan Storhaug is a board certified family medicine physician and faculty member at Family Medicine Residency of Spokane. He continues to see patients during pregnancy, delivery, inpatient medicine and outpatient care to a broad diversity of patients. He is currently serving as President of the Inland Northwest Academy of Family Physicians and the East Side Trustee for the Washington Academy of Family Physicians.