Faculty

Leadership

Sarah Siemion, PharmD, BCPS
Director, PGY1 Pharmacy Residency Program

Jennifer Sekelsky, PharmD
Assistant Director, PGY1 Pharmacy Residency Program

Michelle Budzyn, PharmD, BCPS
Assistant Director of Pharmacy

Kelly Bolesta, PharmD, BCPS
Director of Pharmacy

Kelly Guza, PharmD, BCPS, BCPPS
System Director, Acute Disease Management

Daniel Longyhore, PharmD, MS, BCACP
System Director, Knowledge Management

Mike A. Evans, RPh
Vice President, Enterprise Pharmacy
Chief Pharmacy Officer

Preceptors

Kelly Bolesta, PharmD, BCPS
Director of Pharmacy, Geisinger Wyoming Valley Medical Center

Dr. Bolesta earned her Doctor of Pharmacy from the Nesbitt School of Pharmacy at Wilkes University in 2001. She then completed a PGY1 pharmacy residency at the University of Kentucky Chandler Medical Center. After that, Dr. Bolesta began her career with Geisinger in 2003 as a clinical pharmacist. She has worked in various areas of pharmacy practice at Geisinger, and is now director of pharmacy for Geisinger Wyoming Valley Medical Center. She serves on several committees, including the Medication Use Evaluation Committee, the Formulary Steering Committee and the Pharmacy and Therapeutics Committee. Dr. Bolesta is an adjunct professor for Wilkes University Nesbitt School of Pharmacy and faculty for Geisinger Commonwealth School of Medicine. Her professional interests include pharmacy operations, continuous quality improvement, staff development and pharmacy education.

Michelle Budzyn, PharmD, BCPS
Assistant Director

Dr. Budzyn is a graduate of the Nesbitt School of Pharmacy at Wilkes University. She earned her Doctor of Pharmacy in 2012. After graduation, she accepted a position as a clinical pharmacist at Geisinger Wyoming Valley Medical Center and transitioned into the clinical coordinator role in 2016. In 2018, she accepted the position of assistant director. She is a preceptor for the drug information and healthcare education rotation, the pharmacy administration and medication safety rotation, and the pediatric elective rotation. She serves on the Residency Advisory Committee, the Neonatal Committee, the Antimicrobial Stewardship Committee, the Formulary Steering Committee, the Medication Utilization Evaluation Committee and the Pharmacy and Therapeutics Committee. Dr. Budzyn is an adjunct associate professor in the Department of Pharmacy Practice at the Wilkes University Nesbitt School of Pharmacy and for the Geisinger Commonwealth School of Medicine. Her areas of interest include pediatrics/neonatology, obstetrics, internal medicine, emergency medicine and medication safety.

Sydney Estock, PharmD, BCPS
Clinical Pharmacist, Cardiology/Internal Med/Emergency Medicine

Dr. Estock graduated from the St. John Fisher College Wegmans School of Pharmacy with her PharmD in 2021. After graduation, she completed a PGY-1 pharmacy practice residency at Geisinger Wyoming Valley Medical Center. After residency, she joined Geisinger Wyoming Valley Medical Center as a clinical pharmacist. Her areas of interest include internal medicine, emergency medicine and pediatrics. She is a preceptor for the cardiology and longitudinal staffing rotations and is a member of the wellness committee.

Kristen Franklin, PharmD, BCCCP
Clinical Pharmacist, Critical Care Medicine/Emergency Medicine
Coordinator, Critical Care Medicine/Infectious Diseases
Preceptor of the Year 2020–2021

Dr. Franklin graduated from Wilkes University Nesbitt School of Pharmacy in 2017. She pursued a PGY1 pharmacy practice residency at Geisinger Wyoming Valley Medical Center and a PGY2 in critical care at Penn State Milton S. Hershey Medical Center. After completing both residencies, she joined Geisinger Wyoming Valley Medical Center as a clinical pharmacist. She is the chair of the Residency Research Committee as well as an active member of the Residency Advisory Committee and ABCDEF Committee. Her professional interests include sedation, shock, trauma surgery and interdisciplinary education.

Mrs. Gavin graduated from the University of Pittsburgh with a Bachelor of Science in Pharmacy. She has been a clinical pharmacist at Geisinger Wyoming Valley Medical Center since 1994 with a focus in anticoagulation, parenteral nutrition and internal medicine. She is a member of the Nutrition Committee at Geisinger Wyoming Valley. Her interests include teaching, precepting and she is passionate about patient safety. She serves as a staffing preceptor.

Kelly Gillespie, PharmD
Clinical Pharmacist, Internal Medicine/Infectious Diseases

Dr. Gillespie graduated from Temple University in 1997 with a Bachelor of Science in Pharmacy. She received a Doctor of Pharmacy from Dunn School of Pharmacy at Shenandoah University in 2013. She accepted a position as a clinical pharmacist at Geisinger Medical Center in 1997 and transferred to Geisinger Long Term Care Pharmacy in Scranton in 1999. In 2002, she accepted a position as a clinical pharmacist at Geisinger Wyoming Valley Medical Center. Dr. Gillespie serves on the Residency Advisory Committee and the Antimicrobial Stewardship Committee. She is an adjunct professor at the Nesbitt School of Pharmacy at Wilkes University. Her areas of interest include infectious diseases and sepsis management.

Maria Heaney, PharmD, BCIDP
Clinical Pharmacist, Infectious Diseases

Dr. Heaney graduated from University of the Sciences Philadelphia College of Pharmacy in 2017. She completed her PGY-1 residency at Penn State Health Milton S. Hershey Medical Center, and her PGY-2 in Infectious Diseases at Temple University School of Pharmacy. She joined Geisinger Wyoming Valley Medical Center as a clinical pharmacist in 2023 and serves as a preceptor for the infectious diseases and antimicrobial stewardship rotations. Her professional interests include gram-negative resistance, antimicrobial stewardship and HIV.

Sarah Jallen, PharmD, MHA
Inpatient Pharmacy Manager
Clinical Pharmacist, Cardiology

Dr. Jallen is a two-time alumna of King's College, with a dual bachelor's in neuroscience and biology (2013) and a master's in healthcare administration (2017). She graduated from the University of Colorado Skaggs School of Pharmacy in 2021. While attending pharmacy school, she commissioned into the U.S. Navy Reserves as a Healthcare Administrator Officer as the Manpower Officer for Bremerton OHSU Headquarters in Washington state. She was one of the first residents to complete Geisinger’s newly established combined PGY1/PGY2 Health-System Pharmacy Administration and Leadership (HSPAL) residency at Geisinger Medical Center in 2023. She is currently the inpatient pharmacy manager and a clinical pharmacist at Geisinger Wyoming Valley. She serves on several hospital committees. She is a co-chair of Pennsylvania Society of Health System Pharmacist’s (PSHP) New Practitioner Committee and is actively engaged in multiple organizations on the state and national level. Her interests include cardiology, internal medicine, leadership development, administration, precepting and organizational involvement.

Arthur Jankowski, PharmD, BCPS
Clinical Pharmacist, Emergency Medicine

Dr. Jankowski is a graduate of the Nesbitt School of Pharmacy at Wilkes University. He earned his Doctor of Pharmacy in 2012. He completed a PGY1 pharmacy practice residency at the Penn State Milton S. Hershey Medical Center. After residency he accepted a position at Geisinger Medical Center as a clinical pharmacist focusing on emergency medicine and pediatrics. He then transferred to Geisinger Wyoming Valley Medical Center to expand clinical pharmacy services in emergency medicine to provide 24-hour coverage. Dr. Jankowski is a board-certified pharmacotherapy specialist. He serves as a preceptor in emergency medicine.

Jamie Kerestes, PharmD, BCCCP, BCEMP
PGY2 Emergency Medicine Residency Program Director
Coordinator, Emergency Medicine 

Dr. Kerestes is a graduate of University of the Sciences, Philadelphia College of Pharmacy. She earned her Doctor of Pharmacy in 2011. After graduation, she accepted a position as a clinical pharmacist at Geisinger Wyoming Valley Medical Center. She has her board certification in emergency medicine as well as critical care medicine. Dr. Kerestes has been directly involved in implementing the emergency medicine pharmacy service line as well as the cardiac unit pharmacy service. She facilitates the pharmacists’ adult and pediatric code education and certification for hospital-wide code response. Dr. Kerestes serves on several hospital committees, including the Emergency Medicine Service Line, Emergency Management, Emergency Medicine Services for Children Counsel, Emergency Medical Response, and Virtual Headache Hospital. She is an adjunct instructor in the Department of Pharmacy Practice of Wilkes University Nesbitt School of Pharmacy and clinical assistant professor of pharmacy, Department of Medical Education, Geisinger Commonwealth School of Medicine. Her areas of interest include teaching, emergency medicine, addiction medicine, trauma and toxicology.

Kimberley Limouze, PharmD, BCPS, BCCCP
Clinical Pharmacist, Cardiology/Critical Care
Preceptor of the Year 2022–2023 

Dr.  Limouze is a 2010 graduate of the Eshelman School of Pharmacy at the University of North Carolina. She completed her PGY1 pharmacy residency at Vidant Medical Center (now ECU Health) in Greenville, NC and a PGY2 critical care residency at the University of Maryland Medical Center in Baltimore, MD. She joined the pharmacy team at Geisinger Wyoming Valley Medical Center in 2021 and is a preceptor for students and residents in trauma surgery, critical care and cardiology. Dr. Limouze is a member of the Residency Advisory Committee and the Sepsis Committee. Her professional interests include the management of alcohol withdrawal, atrial fibrillation and peripheral vasopressor administration.

Justine Maley, PharmD
Pharmacy Coordinator, Oral Chemotherapy Clinic, Hematology/Oncology

Dr. Maley graduated from Wilkes University Nesbitt School of Pharmacy in 2018. She joined the Geisinger Wyoming Valley Medical Center Henry Cancer Center team in November 2018. She transitioned to the pharmacy coordinator of the clinic in 2022. Her primary work is in the oral chemotherapy clinic, where she is involved in management of side effects and lab monitoring for patients taking oral chemotherapy. Dr. Maley’s areas of interest include hematology, patient education and precepting.

Vanessa Markle, PharmD, BCPS
Clinical Pharmacist, Internal Medicine
Coordinator, Internal Medicine
Preceptor of the Year 2018–2019

Charles Milazzo, RPh
Clinical Pharmacist, Emergency Medicine

Mr. Milazzo graduated with a Bachelor of Science in Pharmacy from the Temple University School of Pharmacy in 1993. He has been a clinical pharmacist at Geisinger Wyoming Valley Medical Center since 1994 with a focus in emergency medicine, internal medicine, critical care medicine and neonatal medicine. He is a member of the Emergency Medicine Pediatric Resource Team.

Eryn Milius, PharmD, BCPS
Clinical Pharmacist, Emergency Medicine

Dr. Milius is a graduate of Wilkes University where she received her Doctor of Pharmacy in 2009. She completed a PGY1 pharmacy practice residency at St. Luke’s University Hospital in Bethlehem. After residency, she accepted a position at Geisinger Medical Center as a clinical pharmacist where she established rounding services with trauma surgery. She transferred to Geisinger Wyoming Valley in 2017 to work in the emergency department full time. She is a board-certified pharmacotherapy specialist and serves as a preceptor for the emergency medicine rotations for both PGY1 and PGY2 residents. Outside of work, she enjoys traveling, running and spending time with her family.

David Moll, PharmD
Assistant Director, PGY-2 Emergency Medicine Pharmacy Residency Program
Clinical Pharmacist, Emergency Medicine

Megan Neville, PharmD
Clinical Pharmacist, Cardiology/Internal Medicine/Emergency Medicine

Dr. Neville graduated from Albany College of Pharmacy with her PharmD in 2021. After graduation, she completed a PGY1 pharmacy practice residency at Geisinger Wyoming Valley Medical Center. After residency, she joined Geisinger Wyoming Valley Medical Center as a clinical pharmacist. She is an active member on the residency advisory committee and is currently a preceptor for the cardiology, advanced cardiology, and staffing rotations. In addition, she is part of the Wellness Committee. Her areas of interest include emergency medicine, cardiology and internal medicine.

Melinda Novak, PharmD
Clinical Pharmacist, Neonatology/Pediatrics/Obstetrics

Dr. Novak graduated from LECOM School of Pharmacy in 2022. She completed a PGY1 pharmacy practice residency at Geisinger Lewistown Hospital. After residency, she started her career at West Penn Hospital, and then accepted a position at Geisinger Wyoming Valley Medical Center as a clinical pharmacist in 2024. She serves as a preceptor for the obstetrics, pediatrics and neonatology rotations. Her professional interests include internal medicine, critical care and neonatology medicine.

Dr. Paulish graduated from Philadelphia College of Pharmacy, University of the Sciences in 2017. After graduation, he completed a PGY1 Pharmacy Practice Residency at Geisinger Wyoming Valley Medical Center. After residency, he joined Geisinger Wyoming Valley Medical Center as a clinical pharmacist. He is an active member on the Antimicrobial Stewardship Committee, C. Difficile Task Force, and Residency Advisory Committee. His areas of interests include internal medicine and infectious diseases. Dr. Paulish is an adjunct associate professor in the Department of Pharmacy Practice at the Wilkes University Nesbitt School of Pharmacy and Geisinger Commonwealth School of Medicine. He is a preceptor for internal medicine, precepting and the residents' longitudinal staffing learning experience. 

Brandon Rinehimer, PharmD, BCPS
Clinical Pharmacist, Cardiology

Dr. Rinehimer graduated from Wilkes University Nesbitt School of Pharmacy with a PharmD in 2022. He completed a PGY1 pharmacy practice residency at Geisinger Medical Center. After residency, he accepted a position at Geisinger Wyoming Valley Medical Center as a clinical pharmacist. His areas of interest include cardiology, critical care, operating room and internal medicine.

Dr. Siemion is a graduate of the Nesbitt School of Pharmacy at Wilkes University. She earned her Doctor of Pharmacy in 2010. She then completed a PGY1 pharmacy residency at Orlando Regional Medical Center. After completion of her residency, she accepted a position at Geisinger Wyoming Valley Medical Center as a clinical pharmacist to implement pharmacy services in the emergency department. Dr. Siemion is the preceptor for the critical care medicine and infectious diseases rotations. She is an adjunct instructor in the Department of Pharmacy Practice of Wilkes University Nesbitt School of Pharmacy and clinical assistant professor of pharmacy, Department of Medical Education, Geisinger Commonwealth School of Medicine. She has been board certified in pharmacotherapy through the Board of Pharmaceutical Specialties since 2011. She serves as a member on the residency advisory, sepsis and C. difficile task force committees. Her areas of interest include emergency bedside response, trauma, acute ischemic stroke and sepsis.

Jennifer Sekelsky, PharmD
Assistant Director, PGY1 Pharmacy Residency Program
Clinical Pharmacist, Internal Medicine

John Shiner, RPh
Clinical Pharmacist

Mr. Shiner graduated with a Bachelor of Science in Pharmacy from the Temple University School of Pharmacy in 1983. He has been a clinical pharmacist at Geisinger Wyoming Valley Medical Center since 1983 with a focus in emergency medicine, internal medicine, OR pharmacy, advanced internal medicine, sterile compounding and investigational drug team. His interests include anticoagulation, infectious diseases and sterile compounding.

Kaitlyn Slaff-Paris, PharmD
Clinical Pharmacist, Hematology/Oncology

Dr. Slaff-Paris graduated from the Jefferson College of Pharmacy in 2018. She then completed her PGY1 residency at Penn Presbyterian Medical Center in 2019. After completion of her residency training, she accepted a position as a clinical pharmacist at Geisinger Specialty Pharmacy. She later transitioned to her current role as an oral chemotherapy MTDM pharmacist. She is a member of the Hem/Onc Medication Safety Committee and serves as a preceptor for the oral chemotherapy rotation. Her interests primarily include oncology and patient safety.