Pharmacy Supervisors

Clinical Supervisors

Melissa Cwiklinski

Melissa Cwiklinski, PharmD, BCPPS

Melissa is the Clinical General Pediatrics Pharmacy Supervisor responsible for general pediatric patients at OHSU, which encompasses multiple disciplinary services. She has been a pediatric pharmacist at OHSU since 2010, and transitioned into the supervisor role in 2019.  Her professional interests include patient care and safety, transitions of care, process improvement, and pharmacy student/resident development.

Amber Diaz

Amber Diaz, Pharm.D., BCOP

Amber is the Clinical Oncology Pharmacy Supervisor responsible for Oncology Pharmacy Services at OHSU which encompasses both Adult and Pediatric Inpatient, Clinic, and Infusion services. She has been an oncology pharmacist at OHSU since 2012, and transitioned into the supervisor role in 2016. Amber currently serves as the Residency Program Coordinator for the PGY1 Pharmacy Practice Residency program. Her professional interests include hematologic malignancies and bone marrow transplantation, and pharmacy student/resident development. Amber is currently active in professional pharmacy association leadership at the state and national level.

James Lewis

James Lewis, Pharm.D., FIDSA

James Lewis is the Clinical Supervisor for Infectious Disease. His responsibilities include co-directing the OHSU antibiotic stewardship program and serving as the infectious diseases clinical pharmacist for OHSU. He is the co-chair of the antibiotic subcommittee of the Clinical Knowledge and Therapeutics Executive Committee (formerly Pharmacy and Therapeutics Committee) and also serves as the PGY-1 &2 ID rotation preceptor. James' professional interests are antibiotic susceptibility testing, antibiotic/antifungal utilization, and the optimal integration of rapid microbiology diagnostics in antibiotic stewardship. Dr. Lewis also currently serves as the co-chair of the breakpoint working group of the Clinical and Laboratory Standards Institute and is a member of the editorial board for Antimicrobial Agents and Chemotherapy.

Nathan Mah

Nathan Mah, PharmD

Nathan Mah is the Clinical Supervisor for Pharmacy Services in the Emergency Department at OHSU which encompasses both the Adult and Pediatric department. He has been an Emergency Department pharmacists at OHSU since 2011, and transitioned into the supervisor role in 2017. His professional interests include toxicology, research, pharmacy disaster planning, and pharmacy student/resident development. He serves as a PGY-1 and PGY-2 rotation preceptor.

Thuy Nguyen

Thuy Nguyen, Pharm.D.

Thuy is the Clinical Supervisor overseeing the in-patient Pediatric Pharmacotherapy Service. Thuy's responsibilities include advancing clinical pediatric practice and building collaborative research program with medicine faculty groups. Her interests focus in individualized pharmacotherapy for extremely low birth weight neonates and critically ill pediatric patients using pharmacokinetics, pharmacodynamics, and pharmacogenomics.

Renita Patel

Renita Patel, Pharm.D., BCPS 

Renita is the Clinical Pharmacy Supervisor for Surgery Services with responsibility overseeing pharmacists working on inpatient adult surgical floors as well as staffing a portion of her time in this area. She is also involved with policy and procedure development, clinical initiatives and practice changes, patient safety report review, and improvement projects related to clinical practice and medication use. Her professional interests include transitions of care, promoting interdisciplinary patient care and collaboration, medication safety, formulary management, and pharmacy resident and student precepting.


Jillian Paxton, PharmD, BCOP

Jillian is the Clinical Oncology Pharmacy Supervisor responsible for Oncology Pharmacy Services at OHSU which encompasses both Adult and Pediatric Inpatient, Clinic, and Infusion services. She has been an oncology pharmacist at OHSU since 2013, and transitioned into the supervisor role in 2019.  Currently she oversees the General Medical Oncology and Community Hematology Oncology clinical pharmacists.  Her professional interests includes specializing in solid tumor treatments, coordination with Via clinical pathways, and a focus on oncology patient safety concerns.

Sandra Rowe

Sandra Rowe, Pharm.D., BCCCP

Sandi Rowe is the Critical Care Clinical Supervisor for Inpatient Pharmacy Services, the PGY-2 Critical Care Residency Director, and a Critical Care Pharmacist. Her interests include patient care and safety; sepsis, infectious diseases, and acute kidney injury;and teaching and mentoring resident and student learners.

Jackie Sharpe

Jackie Sharpe, Pharm.D., BCPS

Jackie Sharpe is the Clinical Supervisor for Medicine with responsibilities for clinical initiatives over the inpatient medicine service and medicine pharmacist team. Her interests are in transitions of care, addictions medicine, diabetes, and geriatrics, as well as teaching resident and student learners.

Kate Pape

Kate Pape, PharmD, BCPS, BCCCP

Kate Pape is the Clinical Supervisor for Cardiology, responsible for clinical initiatives and the pharmacy team treating inpatient adult cardiology patients at OHSU. Her interests include anticoagulation, transitions of care, medication safety, and pharmacy resident and student education. 

Retail/Infusion Pharmacy Supervisors

Jenn Boyer

Jenn Boyer, PharmD, BCPS, BCPPS 

Jenn is the supervisor for Doernbecher infusion pharmacy and pediatric oncology of Ambulatory Pharmacy Services.  Jenn has been a pediatric pharmacist at OHSU since 2009.  Jenn's professional interests include providing innovative medications such as gene therapy, optimizing medication management in pediatric oncology patients, and improving medication safety.

Jennifer Chen

Jennifer Chen, RPh, ND, MAc

Jennifer is the Supervisor of Pharmacy Services for the Knight Cancer Institute Community Hematology Oncology Clinics. Her responsibilities include oversight of telepharmacy, clean room operations, medication distribution, medication safety, operational efficiency, and optimizing the patient experience. Her other areas of professional interest includes complementary and integrative medicine with an emphasis in naturopathic medicine and acupuncture.

Shawn Colwell

Shawn Colwell R.Ph

Shawn is the Supervisor at the Center for Health &Healing II (CHH2) outpatient pharmacy. CHH2 is located on South Waterfront across from CHH and provides prescriptions to OHSU employees and customers. The pharmacy works with the oncology department to provide medication therapy and specialty billing to its patients. CHH2 also provides med to beds service, offering a coordination of care to increase efficiency and convenience thereby improving the patient experience at discharge. Additionally, CHH2 will partner with Tuality Health to offer Durable Medical Equipment, with services that include devise fitting and insurance billing. Shawn brings over 20 years of retail management to OHSU with a strong background in customer service and workflow integration. His professional interests include pharmacy safe practices, patient compliance through MTM's, team building strategies, administrative compliance, and providing each patient with an exceptional experience.

Mitch Hoel

Mitch Hoel, Pharm.D.

Mitch is a Supervisor for Ambulatory Pharmacy Services responsible for the Center for Health &Healing (CHH) Infusion Pharmacy as well as the Doernbecher Children's Hospital Infusion Pharmacy. Together these pharmacies provide services to infusion clinics at CHH Adult Oncology, Pediatric Oncology, the Center for Hematologic Malignancies, and Rheumatology. In addition, pharmacy services are provided to CHH Outpatient Surgery and several physician clinics. Mitch's administrative interests include medication safety and employee recruitment and development.

Mark Roska

Mark Roska, BS, MS, RPh

Mark is the Supervisor for Compounding Pharmacy Services with responsibility for the daily supervision of the sterile and non-sterile compounding pharmacy. He serves as co-chair of OHSU's Pharmacy Compounding Committee which is responsible for formula review and development. Mark is focused on providing safe compounded products for the entire OHSU system. He is interested in compounding best practice, sterile compounding automation, environmental monitoring and control, hazardous drug management, and comprehensive staff training.

Matt Spinar

Matt Spinar, Pharm.D.

Matt Spinar is the Pharmacy Supervisor of the Physicians Pavilion Outpatient Pharmacy. This pharmacy is located on the Marquam Hill campus serving as the main location for employee and patient prescriptions, same day Specialty Pharmacy services, and production for the Meds to Bed pharmacy service for the OHSU Hospital. Matt joined OHSU in 2017 with extensive experience in retail pharmacy management and compliance. His professional interests include workflow optimization, production management, informatics and pharmacy technology, and medication safety and compliance procedures.

Ron Kuiper

Ron Kuiper, B.S. RPh

Ron Kuiper is the supervisor at Creekside pharmacy.  Creekside pharmacy provides the convenience of mailed prescriptions to both patients and employees with emphasis on specialty medications. Ron joined OHSU in 2019, after a long career in retail pharmacy management.  Ron’s professional interests include work flow optimization, customer service, and team building. 

Information Management and Medication Safety Supervisors

Rebecca Britton

Rebecca Britton, Pharm.D., BCPS

Rebecca Britton is the Clinical Supervisor for Drug Information/Drug Policy. Her responsibilities include oversight over all the OHSU Drug Information Service and Drug Policy at OHSU. She is the secretary of the Clinical Knowledge and Therapeutics Executive Committee (formerly Pharmacy and Therapeutics Committee). She is also the PGY1 Pharmacy Residency Program Director. Rebecca's professional interests are drug information, drug utilization, precepting and training of residents and students. She is passionate about collaborating with all members of the health care team to improve utilization of pharmacy resources to provide better value to the patient care experience.

Van Do

Van Do, Pharm.D.

Van is the Informatics Pharmacist Supervisor for Inpatient Pharmacy Services. He is responsible for the maintenance, integration, and development of the Electronic Health Record and ancillary systems to support the medication use process at OHSU. His professional interests include clinical decision support, information and knowledge management, human factors engineering, and automation.

Lindsey Eick

Lindsey Eick, Pharm.D., BCPS

Lindsey Eick is the Medication Safety Supervisor at OHSU. Her responsibilities include oversight of the Pediatric Medication Safety Committee as well as integrating safe medication practices at OHSU. Lindsey has been at OHSU since 2007, serving as a critical care and informatics pharmacist before transitioning to medication safety in 2018. Her professional interests include standardization, workflow optimization, just culture, critical care and implementing and maintaining safe medication use processes. She serves as a PGY-1 and PGY-2 rotation preceptor.

Ryan Markham

Ryan Markham, Pharm.D.

Ryan is the Informatics Pharmacist Supervisor for Ambulatory Pharmacy Services responsible for supporting and developing the medication use processes unique to oncology, outpatient infusion services, research studies and investigational medications. His professional interests include workflow and dose standardization.

Inpatient Supervisors

Tiffany Arianne Josef

Tiffany Arianne Josef, CPhT

Tiffany is an Inpatient Pharmacy Technician Supervisor with the responsibility of maintaining departmental daily pharmacy activities, monitor and prioritizes workflow, and onboarding new Pharmacy Technicians. Tiffany works in collaboration with the Inpatient Pharmacy Technician Leadership Team in ensuring training validation documents adhere to the departmental policies and procedures and comply with state and federal regulatory requirements. Her professional interests include providing exceptional patient care, process improvement, and advocating for building team dynamics for diversity and inclusion culture with a high standard of camaraderie. Outside of work, she spends time with family, arts and crafts, and baking.

Cassy Robertson profile

Cassy Robertson, PharmD, MBA

Cassy Robertson is the Inpatient Pharmacy Operations Supervisor responsible for overseeing Nonsterile, Sterile, and Hazardous drug compounding operations for the adult and pediatric inpatient populations of OHSU and Doernbecher Children’s Hospital.  Her professional interests include human-factors engineering, employee engagement, workflow and training effectiveness, and continual process improvement.  Beyond her Supervisory duties, Cassy is engaged in developing learners, within the OHSU residency and intern programs, and through participation in events with the Oregon State University College of Pharmacy and her pharmacy school alma mater, Shenandoah University in Virginia.  She is also actively engaged in the Vizient Pharmacy Network Programming, Innovation, and Engagement Committee.