Amber Diaz, Pharm.D., BCOP

Amber is the Clinical Oncology Pharmacy Supervisor responsible for Adult Hematology, Stem Cell Transplant, and Cellular Therapy at OHSU which encompasses Inpatient, Clinic, and Infusion services. She has been an oncology pharmacist at OHSU since 2012 and transitioned into the oncology leadership team in 2016. Amber is a member of the Oncology Subcommittee of the Clinical Knowledge and Therapeutics Executive Committee, and a founding member of the multidisciplinary Oncology Stewardship Committee. Amber’s professional interests include cellular therapy optimization, safety in transitioning chemotherapy regimens to ambulatory settings, and development of an ethical decision-making framework in antineoplastic shortage or scarcity settings through the multidisciplinary stewardship process. Amber is currently active in professional pharmacy association leadership at the state and national level.

Savanah Norman, PharmD

Savanah is the Pharmacy Automation and Technology Supervisor for Ambulatory Pharmacy Services. She oversees all automation and technology within the ambulatory setting, including automated dispensing cabinets, anesthesia workstations, and IV room systems. She also manages and optimizes inventory processes to support safe and efficient medication use. Savanah joined OHSU in 2023, where she completed both her PGY1 Pharmacy Residency and PGY2 Pharmacy Informatics Residency. Her experience spans inpatient and outpatient care, with projects focused on compounding and repackaging, medication safety, and clinical decision support.

Sheila McCollam, PharmD, BCOP

Shiela McCollam is the Clinical Oncology Pharmacy Supervisor responsible for Medical Oncology, primarily supporting solid tumor pharmacy services in ambulatory infusion and clinics. She has been with OHSU Pharmacy Department since 2008, starting as an inpatient pharmacy technician. She completed her PGY1 Pharmacy Residency at OHSU in 2018, and recently transitioned to the pharmacy leadership team in 2025. Shiela serves a chair for the Infusion Plan Committee. She also supports adult non-oncology infusion through the Community Referral Ambulatory Consult Pharmacist Services. Her professional interests include optimizing patient care and safety, advancing pharmacy clinical practice and scope, supporting the pharmacy department and her team, and all things erythropoietin stimulating agents.

Aaron Pham, Pharm.D., BCOP

Aaron Pham is a Clinical Education Supervisor and oncology pharmacist. He completed both his PGY1 Pharmacy and PGY2 Oncology Pharmacy residencies at OHSU in 2014 and 2015, respectively. Although his primary expertise is in hematologic malignancies and bone marrow transplantation, he considers himself a generalist. In his current role, Aaron supports pharmacist credentialing and privileging, preceptor development, continuing education, and onboarding. His work focuses on expanding the pharmacist’s clinical footprint and strengthening clinical training for pharmacy learners. He is committed to advancing clinical pharmacy practice through data-driven initiatives that improve patient outcomes.

Katie Chavez, Pharm.D., BCPS

Katie Chavez serves as the Student Education Supervisor and the Pharmacy Internship Program Director at OHSU. In collaboration with the Oregon State University College of Pharmacy’s Office of Student Success and Experiential Education, she helps ensure high-quality learning experiences for pharmacy students. Katie is also actively involved in supporting preceptor development initiatives to enhance experiential education across OHSU.

Mark Roska, BS, MS, RPh, BCSCP

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 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, compounding automation, environmental monitoring and control, hazardous drug management, and comprehensive staff training.

Steven Tran, Pharm. D, BCGP

Steven oversees all pharmacy services within the Hemostasis & Thrombosis Center (HTC), a highly specialized program caring for patients with bleeding and clotting disorders. The HTC’s clinical pharmacists participate directly in interdisciplinary patient visits and provide complex medication management, procedural planning, patient education, and access to specialized therapies. Steven has expanded and continues to advance the HTC’s pharmacy program, developing practice models that strengthen pharmacists’ role in comprehensive, patient-centered care. His responsibilities also include pharmacy operations, financial stewardship and program sustainability, workforce strategy, 340B compliance, and policy development. He works closely with HTC leadership, institutional and external partners, and regional collaborators through the Mountain States Hemostasis Network. Steven’s professional interests include teaching and patient advocacy.   

Janna Mae Lamb, RN

Janna Mae Lamb is the Assistant Nurse Manager for OHSU Home Infusion. She brings more than a decade of nursing experience across oncology, infusion, care coordination, and nurse navigation. Her background includes roles at the Portland VA, MD Anderson Cancer Center, OHSU's 13K Medical-Surgical Oncology Unit, Home Infusion, Ambulatory Infusion, and the Knight Cancer Institute's Sarcoma and GIST programs. Janna is passionate about supporting patients through complex care journeys and is committed to fostering a collaborative, patient-centered environment for both patients and staff.

Jessica Rosales, MSN, RN CPN

Jessica Rosales is the Assistant Nurse Manager for Ambulatory Non-Oncology Infusion at Oregon Health & Science University (OHSU). With nearly 20 years of pediatric nursing experience, she has served in both inpatient and ambulatory settings, advancing from bedside nursing to clinical leadership.

Jessica is passionate about fostering collaborative teams, creating psychologically safe work environments, and delivering exceptional patient-centered care. She earned her Master of Science in Nursing Education from OHSU and is committed to mentoring future healthcare leaders. As a member of the Asian Pacific Islander Employee Resource Group leadership team, she advocates for inclusion, professional development, and community building across the organization.

Outside of work, Jessica enjoys running and spending time with her husband and two children. She values the balance of family, wellness, and service, bringing those principles into both her personal and professional life.

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.

Rebecca Britton, Pharm.D., FOSHP

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. Rebecca's professional interests are drug information, drug utilization and policy, and improving the quality of residency training on a national level. She is passionate about collaborating with all members of the health care team to improve utilization of resources to provide better value to the patient care experience.

Ryan Markham, Pharm.D.

Ryan serves as the Informatics Pharmacist Supervisor for Ambulatory and Outpatient Pharmacy Services, where his teams support medication use processes unique to prescriptions, clinics, oncology, outpatient infusion, home infusion, and research settings. His professional interests include investigational medications, workflow, and standardization.

Elisa Edwards, Pharm.D., BCPS, BCPPS

Elisa is the Clinical Supervisor for Pediatric Critical Care Pharmacy Services with responsibilities for pharmacy initiatives over the neonatal intensive care, pediatric intensive care and mother-baby units. She has been a pediatric critical care pharmacist since 2007 and joined OHSU in 2024. Her professional interests include pharmacotherapy in neonatal and pediatric critical care, medication safety, transitions of care, process improvement and pharmacy informatics. 

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.

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 an 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 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 chair of the Clinical and Laboratory Standards Institute antimicrobial susceptibility testing subcommittee and is a member of the editorial board for Antimicrobial Agents and Chemotherapy.

Jenny Radke, Pharm.D.

Jenny is the Pharmacy Automation and Technology Supervisor for Inpatient Pharmacy Services. Jenny is responsible for maintaining and optimizing inpatient pharmacy workflows related to pharmacy automation and electronic communication technology, including the use of automated dispensing cabinets, medication repackaging equipment, and computerized inventory systems. With a background in pharmacy informatics, she acts as the liaison between the inpatient pharmacy informatics team and central inpatient operations. Jenny’s professional interests include pharmacy informatics, workflow standardization, medication safety, cardiology, and clinical decision support.

Jesse Bierman, Pharm.D., BCCCP

Jesse Bierman is the Clinical Pharmacy Supervisor for adult critical care and the PGY2 Critical Care Residency director at OHSU. Jesse has been a critical care clinical pharmacist at OHSU since 2009. His responsibilities include clinical initiatives, quality improvement, and the critical care pharmacist team. His professional interests include improving medication safety, multidisciplinary collaboration, sepsis, and pulmonary hypertension.

Johanna Yabusaki, PharmD, MBA

Johanna serves as the Clinical Pharmacy Supervisor for the Pediatric Ambulatory team and as the PGY1 Pharmacy Residency Program Coordinator. She completed a combined PGY1/PGY2 Health-System Pharmacy Administration and Leadership residency at Oregon Health & Science University. She is invested in supporting her team in advancing ambulatory care by expanding and optimizing pediatric clinical pharmacy services, with a focus on transitions of care and clinical quality metrics.

Melissa Cwiklinski, Pharm.D., 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.

Renita Patel, Pharm.D., BCPS 

Renita is the Clinical Supervisor for Surgery. Her responsibilities include overseeing pharmacists working on inpatient adult surgical floors as well as staffing a portion of her time in this area. She is 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 medication safety, formulary management, transitions of care, and supporting interdisciplinary patient care and collaboration.

Roger Clark, Pharm.D., BCPS, BCCCP

Roger is the Clinical Supervisor for the Emergency Medicine and Overnight Pharmacy Services teams. Roger joined OHSU in 2008 to complete a PGY1 residency and started staffing as an ED Pharmacist shortly after completion. Roger’s interests involve Toxicology, Code Blue response, Code Stroke response, and Infectious Diseases as they relate to Emergency Medicine. Roger is also passionate about precepting. He served as RAC chair during the 2022-2023 academic year and serves as an advisor to residents on an annual basis.

Dipa Patel, Pharm.D

Dipa is the pharmacy supervisor at OHSU Pharmacy at Tuality. OHSU Pharmacy at Tuality is located in Hillsboro and provides prescriptions to Hillsboro Medical Center patients, OHSU patients, employees and several non-OHSU local clinic patients. The pharmacy works closely with Hillsboro Medical Center leading the meds to bed program for hospital discharge patients. The team leads with a deep commitment to delivering compassionate, patient-centered care. With a strong foundation in both clinical and community pharmacy practice, Dipa plays a vital role in optimizing medication therapy and advancing health outcomes across diverse patient populations.

Donald Backus, Pharm.D

Donald Backus is the Supervisor at the Creekside Specialty and Mail order Pharmacy. Creekside pharmacy provides the convenience of mailed prescriptions to both patients and employees with emphasis on specialty medications. Donald joined OHSU's Outpatient Pharmacy in 2018. Donald’s professional interests include work flow optimization, customer service, and team building.

Henrik Lee, Pharm.D

Henrik is the supervisor at Physicians Pavilion pharmacy. This pharmacy provides medications for patients discharging from OHSU hospital as well as ambulatory patients of the Portland community. Henrik’s professional interests include workflow optimization and expanding access and services provided by the pharmacy. His goal is to ensure every patient has an outstanding experience and gets every medication necessary for their therapy. 

Ron Kuiper, B.S. RPh

Ron Kuiper is the Supervisor at the Center for Health and Healing Bldg 1 (CHH1). CHH1 is located on the South Waterfront across from CHH2 and provides prescriptions to OHSU employees and customers. CHH1 specializes in fertility medications and works with OHSU's fertility providers and other outside fertility entities. 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.

Vi Orzuna, B.S., Pharm.D

Vi Orzuna, is the Pharmacy Supervisor at East Portland Pharmacy, an FQHC-affiliated 340B pharmacy committed to improving access to affordable medications. She oversees pharmacy operations and ensures alignment with pharmacy regulations and 340B program requirements. Vi works closely with clinic staff and healthcare providers to identify lower-cost medication alternatives, complete prior authorizations, and provide vaccination services. She also supports patients through the pharmacy’s bubble-pack program, contacting them monthly to confirm their current medications, identify changes, and coordinate refills. Vi is passionate about optimizing workflows, advancing standardization and clinical decision support, and strengthening inventory management to proactively address drug shortages. Above all, she is committed to ensuring every patient receives compassionate, high-quality care and reliable access to essential medications, regardless of their ability to pay.

Vincent Hatakeyama, B.S., Pharm.D

Vincent is the supervisor at Physicians Pavilion pharmacy. This pharmacy provides medications for patients discharging from OHSU hospital as well as ambulatory patients of the Portland community. Vincent joined OHSU in 2022. Vincent’s professional interests include workflow optimization, patient-focused service, and team building.

Tsering Youdon, BHS., CPhT

Tsering is a Pharmacy Revenue Analyst Supervisor who joined OHSU in 2005 and transitioned to her supervisory role in 2023. She oversees pharmacy revenue operations across OHSU inpatient, ambulatory, and home infusion services, as well as at Hillsboro Medical Center and Adventist Health Hospital. Tsering ensures compliance with revenue capture standards and leads initiatives to improve pharmacy revenue cycle processes.

Jon Case, PharmD, BCCCP

Jon is the Pharmacy Supply Chain Supervisor for OHSU Health, where he leads a team of property specialists, buyers, and analysts supporting medication supply chain operations across both inpatient and ambulatory care. He began his career at OHSU in 2009 as a Clinical Pharmacist and spent over a decade specializing in Adult Critical Care. Jon draws on this clinical experience to guide inventory management, mitigate drug shortages, and drive continuous process improvement.