Lauren DiMarino, DO
Program Director
Dr. DiMarino received her Doctor of Medicine degree at Lake Erie College of Osteopathic Medicine. She completed residency training at Geisinger Medical Center then stayed on as Chief Resident for the Internal Medicine residency program. Dr. DiMarino then assumed the role as Associate Program Director until she was appointed Program Director of the Internal Medicine Residency in 2016. She is an Associate in Hospital Medicine, and a Fellow of the American College of Osteopathic Internists and American College of Physicians. Dr. DiMarino also holds academic positions as Clinical Assistant Professor for Geisinger Commonwealth School of Medicine and Philadelphia College of Osteopathic Medicine. She has a passion for mentorship and learner transitions across the medical education continuum and has served on the national Alliance for Academic Internal Medicine (AAIM) Learner Handoff Standards Task Force.
Jodie Reider, MD
Associate Program Director
Director, Clinician Educator Track
Dr. Reider received her Doctor of Medicine degree at the University of Pittsburgh in 2002. She remained at the University of Pittsburgh Medical Center for the next 14 years, during which time she completed her residency in Internal Medicine and fellowship in Endocrinology, served as Chief Medical Resident, and worked as a Clinical Assistant Professor in the Division of Endocrinology before joining Geisinger in 2016. She has been an Associate Program Director for the Internal Medicine Residency Program since 2016. Her educational interests include teaching, mentorship, coaching, and faculty development. She completed Geisinger’s Medical Education Certificate Course in 2019. She is Director of the Clinician Educator Track and Director of the Clinical Competency Committee. She organizes our annual resident retreats and serves as the mentor for approximately 17 residents/year.
Dan Dometita, DO
Associate Program Director
Director, Osteopathic Recognition
Dr. Dometita received his medical degree in 2012 at Edward Via College of Osteopathic Medicine in Virginia. He completed his medical residency training and served as a Chief Resident at Geisinger Medical Center. Following, he took the role of Director of Osteopathic Recognition and then subsequently was appointed as Associate Program Director in 2018. He is an Associate in Hospital Medicine and General Internal Medicine where he also serves as the Director of Residency Clinic. Dr. Dometita is a Fellow of of the American College of Physicians and also holds academic positions as Clinical Assistant Professor for Geisinger Commonwealth School of Medicine and Philadelphia College of Osteopathic Medicine. He is an alumni of Geisinger's Medical Education Certificate Course, and is a member of the Geisinger Academy of Educators. Outside the office, he is an avid Eagles fan and loves doing outdoor activities with his wife, Crystal, and three children, Braeden, Arabella, and Eris.
Jamie Hood, DO
Associate Program Director
Dr. Hood received her Doctor of Medicine degree at Philadelphia College of Osteopathic Medicine. She completed residency training at Geisinger Medical Center and then stayed on as Chief Resident for the Internal Medicine residency program for the 2019-2020 academic year. She was subsequently appointed an Associate Program Director in 2021. She is an Associate in Hospital Medicine and serves as Medical Director for one of the medical-surgical units. She is working to redesign the board review curriculum and offer ongoing faculty development for the Hospital Medicine core educational faculty. Outside of work, Dr. Hood is an aspiring amateur sommelier, avid reader, and enjoys spending time with her husband and their cats.
Lisa Schroeder, MD
Assistant Program Director
Dr. Schroeder received her Doctor of Medicine degree at the University of Wisconsin School of Medicine and Public Health at Madison in 2007. She completed her residency and chief residency in Internal Medicine and fellowship in Rheumatology at Geisinger. She serves as an Assistant Professor in the Department of Rheumatology, as well as an Assistant Program Director for the Internal Medicine Residency program. Dr. Schroeder develops and delivers clinical reasoning curricula for both the Internal Medicine Residency and graduate medical education at Geisinger. She is also core faculty for Geisinger’s Healthcare Communications program. She previously served as Internal Medicine Clerkship and Sub-internship Director from 2016-2020. Her educational interests include mentoring residents, medical students and rheumatology fellows, specifically around clinical reasoning and communication skills. She completed Geisinger’s Medical Education Certificate Course and is a member of the Geisinger Academy of Educators. She enjoys reading, exercising, cooking and spending time with her family.
Stefanie Leader, DO
Director, Quality Improvement and Wellness
Dr. Leader received her Doctor of Osteopathic Medicine degree at the Philadelphia College of Osteopathic Medicine. She completed her Internal Medicine residency training at Geisinger Medical Center. She was then selected as Chief Resident for the 2018-2019 academic year. She is currently an Associate in Hospital Medicine and serves as the Director for Quality Improvement and Wellness for the Internal Medicine Residency.
Jonathan Swinden, MD
Director, Simulation
Dr. Swinden received his Doctor of Medicine degree from St George’s University. He completed Internal Medicine residency at Geisinger Medical Center then served as Chief Resident. He is an Associate in Hospital Medicine and has a passion for teaching. He directs the clinical simulation curriculum for the Internal Medicine residency and is a core faculty member for the Geisinger Healthcare Communications Program. His professional interests include prevention of diagnostic errors and raising awareness of cognitive bias.
Denise Keyser
Program Manager
Ms. Keyser graduated from Bloomsburg High School and Allentown Business School with an Associate
in Specialized Business degree. She started at Geisinger in 1989 as a float secretary. In 1994, she became the program administrator for the Internal Medicine Residency Program. Ms. Keyser is the
“rock” of the program, making sure each trainee successfully completes the training requirements during their three years with the program. She tells everyone that this is her “second family.”
Suzanne Noll, MEd
Program Administrator
Suzanne graduated from Bloomsburg University with a Bachelor of Arts in Communication Studies and Organizational Communication in 2017. She went on to complete her Master of Educational Leadership and College Student Affairs in 2019 also from Bloomsburg University. In 2019, Suzanne worked at Penn State Mont Alto within the Residence Life program. Suzanne entered the Geisinger system in September 2021 working in the Staffing Office then transitioning to Same Day Surgery. In October 2022, Suzanne became a Program Administrator for the Internal Medicine/Clinical Informatics. Suzanne enjoys cooking, baking, reading (loves a good murder mystery), and spending time with her family and cats.
Jesse Calestine, DO
Chief Resident
Before medical school, I worked as a nursing assistant in central Pennsylvania. I always knew the style of care provided by Geisinger and how important the network is to the community. As a medical student, I had the privilege of doing a rotation during my fourth year. Within the first few days, I was integrated into a welcoming community, academically stimulated — and most importantly, welcomed to ask “Why?” After my interview day, I could say with confidence that this was my top choice.
I was born and raised in Brooklyn, N.Y., and desired a change of scenery, leading to my undergraduate at The Pennsylvania State University. I can attest my transition to a rural part of central Pennsylvania was welcomed with open arms, and I would without a doubt choose to train at Geisinger again! I enjoy the outdoor adventures, scenery and a strong connection within the community I serve. As a resident, it was a privilege to work with people that strive to help each other succeed and I look forward to facilitating this as chief resident. My training has fostered a passion for education and enthusiasm toward mentorship, which ultimately inspired my new role. Residency is difficult. It is meant to challenge and develop your craft as a physician, but I know the bonds of my Geisinger family will always be there to support me.
We look forward to watching each resident flourish and look forward to meeting you this year. If you have any questions about our program, don’t hesitate to reach out to me and ask!
Monica Dzwonkowski, DO
Chief Resident
I grew up in Green Bay, Wisc. (go Packers!), and now call Danville, Pa., my home. When I interviewed at Geisinger, I was so impressed at how such a large, state-of-the-art, academic tertiary care center could be in such a charming and quaint community setting. There really is something special about this place that I hope you get to experience for yourself. The dedication to teaching, wellness and camaraderie among our residents is unmatched, and I am excited and humbled to stay on for another year as a chief resident.
When I’m not at the hospital, you can find me hiking with my dog in one of the beautiful state parks located around the area, exploring the local farmers markets, spending time with my family, cooking up one of my grandmother’s secret Polish recipes or hanging out with my fellow co-residents at a local brewery.
Please reach out if you have any questions about our program!