Our Physicians
Dr. Yasin N. Khan
Dr. Yasin N. Khan is a graduate of Drexel University School of Medicine, in Philadelphia. He completed his anesthesiology residency training at New York Hospital/Cornell University Medical Center, and completed a fellowship in pain management at Sloan-Kettering Memorial Hospital in New York.
He served as the Director of Acute and Chronic Pain Services at Albert Einstein Medical Center, Philadelphia. He helped start pain management program at Lehigh Valley Hospital and served as a medical director from 1991-1994.
Dr. Khan is Diplomat-American Board of Anesthesiology with Subspeciality Board in Pain Management. Diplomat – American Academy of Pain Medicine. Fellow of Interventional Pain Practice (FIPP) from World Institute of Pain (WIP). He has greatly contributed to his field through active research and numerous publications. He has multiple society memberships including International Association for the Study of Pain, American Pain Society, American Academy of Pain Medicine, International Neuromodulation Society and American Neuromodulation society. He is a Founding Member of the American Neuromodulation Society.
Dr. Khan offers help and hope to those who experience pain relating to headaches, back and neck pain, facial pain, pain due to Osteoporosis and Arthritis, Reflex Sympathetic Dystrophy or Complex Regional Pain Syndrome, Shingles, Spinal Spasticity, Myofascial Pain Syndrome/Fibromyalgia, Phantom Limb Pain, cancer pain, industrial and accidental injuries, and pain arising from fractured vertebrae.
Dr. Yasin Khan offers numerous treatment options in traditional as well as holistic medicine with the added benefit of advanced techniques. These include medication management, Advanced Interventional Pain Techniques and Regenerative Medicine.
Dr. Elizabeth Khan
Dr. Elizabeth Khan started her career in pain management as a physical therapist, graduating from University of California at San Francisco. After working for many years as a physical therapist, she obtained her medical degree at the Medical College of Pennsylvania, in Philadelphia. She completed a year of pain management training at Sloan-Kettering Memorial Hospital, New York, and followed it with a family practice residency at Montgomery Hospital, a Temple affiliate.Dr. Elizabeth Khan is board-certified in Pain Management and Family Practice, and is also a Certified Medical Review Officer. Her multiple society memberships include the American Academy of Family Practice, American Association for the Study of Headache, American Pain Society, Pennsylvania Medical Society, and Lehigh County Medical Society.
Dr. Don H. Ko
Dr. Ko is a graduate of the University of Michigan with a medical degree from Wayne State University in Detroit, Michigan. He completed his residency training in Physical Medicine and Rehabilitation at the Sinai Hospital/Detroit Medical Center. With keen interest in pain management, he also completed a clinical fellowship in Interventional Pain Management with the Lehigh Valley Pain Management group.Dr. Ko is board-certified in Physical Medicine and Rehabilitation and board-certified in Pain Medicine. His multiple society memberships include American Association of Physical Medicine and Rehabilitation, American Association of Electrodiagnostic Medicine, American Society of Interventional Pain Physicians, and the American Academy of Pain Management.Dr. Ko enjoys golf and tennis in his leisure time. He also helps his wife on the weekends, who is a dog groomer.
Amory Mumbauer, PA-C
Amory Mumbauer graduated from Millersville University with a BS degree in Biology and a Chemistry minor. She worked for a year as a CNA for Lehigh Valley Health Network, then graduated from Salus University in Elkins Park, PA with a Masters in Physician Assistant studies in 2011. She has worked full-time as a Physician Assistant for Tilghman Medical Center and Comprehensive Pain Centers since 2011 and has experience in Urgent Care, Family Medicine, and Pain Management. She is a member of the American Academy of Physician Assistants and Pennsylvania Society of Physician Assistants. She is a BioTE certified medical practitioner, is a U.S. Department of Transportation Certified Medical Examiner, and is completing certification in addiction medicine.
Elizabeth "Beth" Jeffers, PA-C
Elizabeth “Beth” Jeffers received her undergraduate education at Western Washington University in Bellingham, WA with a Bachelor’s of Science degree in Marine Biology, a chemistry minor and a psychology minor. She then chose to pursue a medical career and became a certified nursing assistant (CNA) for several years prior to attending and graduating from the nationally recognized DeSales University Physician Assistant Program with her Masters of Science in Physician Assistant Studies in 2016. She has worked full-time as a Physician Assistant for Tilghman Medical Center and Comprehensive Pain Center since 2016 and has experience in urgent care, family medicine and pain management. She is a BioTE certified medical practitioner, is a U.S. Department of Transportation Certified Medical Examiner, and is completing certification in addiction medicine.When not at work, Beth enjoys cooking, going to the gym and spending time outdoors in nature.