Philip Caterbone

Dr. Caterbone, a Board-Certified Physician, was born and raised in Lancaster, PA. He graduated from the Philadelphia College of Osteopathic Medicine. Previously, he worked in private practice in Austin Texas for most of his career and, most recently practiced at UPMC in Hanover. Dr. Caterbone is married and they have nine children. In his free time, Dr. Caterbone enjoys participating in triathlons and completed an Iron Man Challenge in Waco, Texas in October of 2021.

Photo of Philip Caterbone

Stephen C. Phillips

Dr. Stephen Phillips, Family Physician at Sadler, has over 30 years of experience serving patients of all ages. He was formerly a family physician in the United States Army before retiring in 2017.

He received his Doctor of Osteopathy from Heritage College of Osteopathic Medicine at Ohio University in 1987, and went on to complete his family practice residency at Eisenhower Army Medical Center in Fort Gordon, Georgia. Phillips also has a Master in Public Health from the Uniformed Services University of Health Sciences and a Master in Strategic Studies from the United States Army War College.

He is a Fellow of the American Academy of Family Physicians and a member of the American Osteopathic Association and the Association of Military Osteopathic Physicians and Surgeons.

An active member of the St. Patrick Church in Carlisle, Phillips enjoys running, hiking, and spending time with his family and grandchildren.

Photo of Stephen C. Phillips

Katrina Thoma

Katrina Thoma, Director of Medical Services at Sadler, is certified in pediatric primary care and specializes in pediatric congenital heart defects and intensive care. She is a member of both the National Association of Pediatric Nurse Practitioners and the Pennsylvania Coalition of Nurse Practitioners.

She earned her Bachelor of Science in Nursing at Immaculata University in Malvern, Pennsylvania, and received her Master of Science in Nursing from Thomas Jefferson University in Philadelphia and a Master of Public Health at Capella University in Minneapolis. Additionally, Thoma is pursuing a Doctorate of Public Health from Capella.

Outside of Sadler, she is a small farm homesteader and enjoys the outdoors by kayaking, mountain biking, and ultramarathon running.

Photo of Katrina Thoma

Lakshmi Polavarapu

Dr. Lakshmi Polavarapu, Lab Director at Sadler, focuses on family and addiction medicine. She is certified in medication-assisted treatment for opioid abuse and is a committee member with the Task Force on Opiate Prescribing with Partnership for Better Health.

Outside of Sadler, Polavarapu is a clinical assistant professor of family and community medicine at the Penn State College of Medicine in Hershey, Pennsylvania, and trains medical students from both Penn State Hershey and UPMC Pinnacle.

She earned her Bachelor of Medicine and Bachelor of Surgery at Kamineni Institute of Medical Sciences in India, then went on to receive board certification in family medicine by completing her residency at Genesys Regional Medical Center in Michigan. She has experience with outpatient clinics, in-patient hospital care and nursing home care.

In her spare time, she enjoys cooking and hiking.

Photo of Lakshmi Polavarapu

Gordon Miller

Dr. Gordon Miller, Family Physician at Sadler, provides family care. He has practiced in south central Pennsylvania for the past 12 years following his retirement from military service in the United States Army.

He earned his Doctorate in Osteopathic Medicine from Philadelphia College of Osteopathic Medicine and served his residency in family medicine at Womack Army Medical Center in Fort Bragg, North Carolina.

Miller is certified by the American Board of Family Medicine and a member of the American Academy of Family Physicians, Pennsylvania Medical Society, Pennsylvania Osteopathic Medical Association, Pennsylvania Osteopathic Family Physician Society, and Cumberland County Medical Society. 

In his spare time, he enjoys traveling, fishing and spending time with his family.

Photo of Gordon Miller

Connect with Sadler: Instagram LinkedIn