Our Team

Physicians


Stephen G. Diamantoni, M.D.

Dr. Diamantoni is a graduate of Lehigh University and Hahnemann Medical College. He completed his residency training in Family Practice at Lancaster General Hospital in 1985, where he served as Chief Resident. Dr Diamantoni is board certified in Family Practice and has also earned Board Certification in Geriatrics and Sports Medicine. He is Board Certified by the American Board of Medicolegal Death Investigators. He is a Fellow of the American Academy of Family Practice. Dr Diamantoni founded Diamantoni and Associates in 1985 and is the Managing Partner. He is the elected Coroner of Lancaster County. He lives in Manheim Township with his 3 children. He enjoys skiing, scuba diving, and coaching soccer.

Office Locations:

Gail F. Bodner, M.D.

Dr. Gail Bodner graduated from Rutgers University with a Bachelor of Science degree in Biochemistry. She received her medical degree from Hahnemann University in Philadelphia and completed her Family Medicine internship at Eastern Virginia Medical School. Dr. Bodner performed her Family Medicine residency at Moses Cone Memorial Hospital in North Carolina. After working in emergency medicine at Winona Memorial Hospital in Indianapolis, IN Dr. Bodner continued in this field at both Lancaster General Hospital and Reading Hospital and Medical Center. Dr. Bodner joined Diamantoni and Associates in 1989 and is a member of the American Academy of Family Physicians and the Pennsylvania Medical Society. She enjoys treating patients of all ages and considers it a privilege to work with patients and their families.

Office Locations:


Adrian F. Hazbun, M.D.

Dr. Adrian Hazbun attended Yale University where he received a double Bachelor of Science degree in molecular biophysics, biochemistry, and organismal biology. He attended Temple University School of Medicine and graduated in 2002. Dr. Hazbun performed his Family Medicine internship and Family Medicine residency at Ventura County Medical Center in Ventura, California, graduating in 2005. After travelling to Botswana, Uganda, and Tanzania where he treated children suffering from HIV/AIDS, Dr. Hazbun joined Diamantoni & Associates team in 2008. He is certified by the American Board of Family Medicine and his interests include playing soccer and traveling overseas.

Office Locations:

Elizabeth Maxwell, MD

Diamantoni and Associates takes great pleasure to announce that Dr. Elizabeth Maxwell is joining our team of providers. Dr. Maxwell comes from a very diversified background and is eager to begin her career in medicine with us.  She provides a great blend of top-notch clinical education and knowledge with a passion for providing community based care. Dr. Maxwell attended Ohio State University College of Medicine and her residency with Lancaster General hospital Family and Community Medicine. She brings her outstanding record of philanthropy and service to the Lancaster community. Dr. Maxwell, as a primary care provider, will be providing the community with comprehensive healthcare services as well as Obstetric Care.

She is fluent in Spanish

Office Locations:

Maria F. Perlis, M.D.

Dr. Maria Perlis was born and raised in Schenectady, NY. She attended Cornell University for her undergraduate studies, receiving her degree in 1990. Dr. Perlis earned her medical degree in 1994 from the State University of New York Health Science Center. She performed her residency at Lancaster General Hospital from 1994-1997 and joined Diamantoni & Associates in August of 1997. Dr. Perlis has been board certified by the American Board of Family Medicine since 1997, and is currently certified through 2023. Professional memberships include: the American Academy of Family Physicians, the Pennsylvania Academy of Family Physicians, and the Christian Medical and Dental Associates.

Office Locations:

Jeffrey T. Trost, M.D.

Dr. Jeffrey Trost attended the University of Scranton and received a Bachelor of Science in Biology before attending Temple University for his Doctor of Medicine degree. He completed his residency at Lancaster General Hospital and joined Diamantoni & Associates in 1994. Dr. Trost enjoys caring for patients of all ages. He feels it is an honor to be a part of so many peoples’ lives and hopes to assist them in their journey. Dr. Trost has retired from rugby, but still enjoys hockey, skiing and kayaking, making his yard look half-decent, and going to the beach with his wife and dogs.

Office Locations:

Physician Assistants and Nurse Practitioner


James Bounds, PA-C

After graduating from Conestoga Valley High School, James Bounds went to the University of Richmond where he earned his Bachelor of Science and Bachelor of Arts degrees in 2001. After spending time working and playing in Key West, FL and Portland, OR, James completed his Master of Health Sciences in Physician Assistant Studies at Lock Haven University of Pennsylvania in 2006. He is certified by the National Commission of Certification of Physician Assistants. James and his wife have three children who are the focus and joy of their lives. If not at home with the kids, you will most likely find James enjoying the outdoors on his skis, bicycle, or with golf clubs or a flying fishing rod in hand.

Office Locations:

Ashley Mallon, PA-C

Ashley Mallon graduated from Thomas Jefferson University in Philadelphia with her Master of Science in Physician Assistant Studies. She attended University of South Carolina for her undergraduate degree where she studied psychology and biology. Ashley has a strong passion for family medicine and is accredited by the National Commission on Certification of Physician Assistants and is a member of the American Academy of Physician Assistants and Pennsylvania Society of Physician Assistants.

In her spare time, Ashley enjoys traveling and spending time with her husband and their dog, Piper!

Office Locations:

Bethany King, PA-C

Bethany King is a graduate of Philadelphia University where she earned her Master of Medical Science in Physician Assistant Studies. Beth completed her undergraduate studies in Health Sciences, also at Philadelphia University. In addition to family medicine, she has a particular interest in women’s health and preventive medicine. She is accredited by the National Commission on Certification of Physician Assistants and is a member of the American Academy of Physician Assistants and the Pennsylvania Society of Physician Assistants. In her free time, Beth and her husband enjoy kayaking, hiking, and spending time with their dog Sadie.

Office Locations:


Michael C. Shipman, PA-C

Michael Shipman earned his Bachelor of Science degree at Rutgers University. He attended the College of Medicine and Dentistry of New Jersey and received his Certificate of Training as a Physician’s Assistant. Michael earned his certification of training as a Medical Services Specialist and Medical Services Technician at the U.S. Air Force School of Health Sciences. Michael joined Diamantoni & Associates in 2008.

Office Locations:

Emily Harnish, PA-C

After graduating from Lampeter-Strasburg High School, Emily Harnish went to Eastern Mennonite University in Harrisonburg, VA, where she received a degree in biochemistry in 2013. She interned at the National Institute of Neurological Disorders and Stroke from 2013 to 2015, and subsequently decided to pursue work in healthcare. She graduated from James Madison University with a Master of Physician Assistant Studies in 2019. She is accredited by the National Commission on Certification of Physician Assistants and is a member of the American Academy of Physician Assistants. In her free time, Emily enjoys cooking and baking, reading, and spending time with her many extended family members who live in Lancaster County.

Office Locations:

Jessica Paradise, CRNP

Jessica Paradise is a graduate of Widener University where she earned her Master of Science in Nursing with a focus on Family Nurse Practitioner Studies. Jess completed her Bachelors of Science in Nursing from Pennsylvania State College of Nursing. She has been practicing as a bedside nurse for the past 10 years; specifically in the Cardiovascular Intensive Care Unit at Hershey Medical Center. She is accredited by the American Academy of Nurse Practitioners National Certification Board. In her free time, Jess enjoys hiking, going to the beach, and spending time with her family and dog Luna.

Office Locations: