Andrew DeWalt, PA-C

Andrew DeWalt is a certified physician assistant. He grew up in Strasburg, Pennsylvania and graduated from Lampeter Strasburg High School. He received his undergraduate degree in Biology from Elizabethtown College before receiving his physician assistant master’s degree from Lock Haven University. After graduating, he started his career in family medicine in Silver Spring, Maryland where […]

Alexandra Lucas, PA-C

Alexandra Lucas is a certified Physician Assistant. She is originally from Elkridge, Maryland. She received her undergraduate degree at Coastal Carolina University, where she studied Exercise and Sports Science. She then earned her master’s degree in physician assistant studies at Presbyterian College in Clinton, South Carolina. She joined Keystone urology in November of 2023. Alex […]

Kristen Berfield, Nurse Practitioner

Kristen Berfield is a certified Nurse Practitioner. She is a Harrisburg, PA native and completed her undergraduate studies at Penn State University and her MSN at Drexel University in Philadelphia. She joined Keystone Urology in August of 2023 and will primarily be seeing patients in the hospital setting. In her free time, she enjoys crafting, […]

Stacey Bennett, Nurse Practicioner

Stacey graduated from Millerville University with Master’s degree in Nursing- Family Nurse Practitioner Program in 2018. Her RN Diploma is from Lancaster General Hospital, from which she graduated in 2005. Prior to becoming a Nurse, Stacey graduated with a Bachelor’s degree in Social Work. Stacey has been a nurse for 20 years and believes it […]

Payal Patel, PA-C

Payal Patel is a certified Physician Assistant. She is a Chicago native and completed her undergraduate education at Marquette University in Milwaukee, Wisconsin with a degree in biomedical sciences and psychology. She recently moved to Lancaster after completing her double master’s in public health and medical sciences from Arcadia University. She joined Keystone Urology in […]

Brent Calhoon, PA-C

Brent Calhoon is a board-certified physician assistant who is a graduate of Beaver College, now Arcadia University. He has been in practice over twenty years working in nephrology, internal medicine, cardiology, rheumatology, and now urology. He was drawn to urology because of the mix of medicine and surgery. Mr. Calhoon was born in Harrisburg but […]

Isaac Mohr, PA-C

Isaac Mohr is a certified physician assistant. He is a Lancaster County native and graduate of Pequea Valley High School in Kinzers, PA. Isaac earned both his undergraduate degree in medical sciences and his master’s degree in physician assistant studies from DeSales University. He enjoyed playing on the men’s soccer team while attending DeSales. Upon […]

Bethany Arbogast, PA-C

Bethany Arbogast is a certified Physician Assistant. She is a Lancaster native and graduate of Manheim Township High School. She was excited for the opportunity to return to Lancaster and continue her career as a PA with Keystone Urology. She received her undergraduate degree at Virginia Tech, where she studied human nutrition, foods, and exercise […]