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

Peter Barkett, MD

(Term 2023 - 2025)

Dr. Barkett is board certified in Internal Medicine and has practiced in the hospital, subacute and ambulatory settings. He sees patients at Kaiser Permanente in Kitsap County, has worked with the KPWA pharmacy and therapeutics committee and has served as chief of KPWA’s outpatient Internal Medicine department.

Laura Beste, PharmD, BCGP (Vice-chair)

(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.

Gregory Hudson, DNP, PMHNP-BC, BS

(Term 2024 - 2026)

Dr. Gregory Hudson is a board-certified Family Psychiatric Mental Health Nurse Practitioner at Community Health Care in Tacoma, WA. Following the completion of the Integrated Care Fellowship at the University of Washington AIMS center, Dr. Hudson helped establish collaborative psychiatric care at Community Health Care. Currently, he serves as the psychiatric consultant for both adults and children across three primary care clinics within the organization. In addition, he provides psychiatric teaching to medical and ARNP residents, and collaborates with Seattle University and Pacific Lutheran University to provide clinical experience for nursing students. He has an interest in improving access to equitable, high value, evidence based mental healthcare and reducing stigma of seeking treatment.

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.

Kavita Chawla, MD, FACP, MHA (Chair)

(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.



Kevin Flynn, PharmD, MBA, BCPS

(Term 2023 - 2025)

Kevin Flynn is the Director of Pharmacy Purchasing for UW Medicine. He is a Board Certified Pharmacotherapy Specialist and a member of the United States Army Reserves, where he serves as a Pharmacy Officer with the 396th Field Hospital. He is a member of the American Society of Health-System Pharmacists.

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.

Zoe Taylor, MD, MBA, FAAFP

(Term 2024 - 2026)

Dr. Taylor is a board certified family physician. She is the Director of Operations and Informatics at the Lummi Tribal Health Center on the Lummi reservation outside of Bellingham. She practices broad-spectrum outpatient family medicine and her clinical passions include caring for patients with substance use disorders, treating hepatitis C, and providing pregnancy and reproductive care. In her administrative role, she is a clinical informaticist and Epic Physician Builder, and she directs operational and quality improvement projects at LTHC. She is also the clerkship director for medical students rotating from UW and WSU. She was previously the Chief Resident for the University of Washington Family Medicine Residency in Seattle. 

Christy Weiland, PharmD, BCPS

(Term 2023 - 2025)

Christy Weiland is a faculty pharmacist at East Pierce Family Medicine Residency and serves as a coordinator to an ambulatory care pharmacy residency. Christy is a board-certified pharmacotherapy specialist and practices with collaborative practice agreements to manage chronic conditions within MultiCare Health system. Additionally, Christy is Clinical Assistant Professor with University of Washington (UW) School of Pharmacy and UW School of Medicine. Lastly, Christy has a passion for mentorship and chairs the mentorship committee for the UW Pharmacy Alumni Association.