Dr. Reider is a board-certified and fellowship-trained endocrinologist. Her clinical interests include diabetes, women’s health, thyroid and parathyroid disorders, cystic fibrosis, and obesity. Her research interests include diabetes, patient safety, and medical education. Dr. Reider attended medical school at the University of Pittsburgh, where she earned her Doctor of Medicine degree. She then completed her residency in internal medicine and a fellowship in endocrinology, diabetes and metabolism at the University of Pittsburgh Medical Center. Dr. Reider is certified by the American Board of Internal Medicine in endocrinology, diabetes and metabolism. Dr. Reider is rated as an Advanced provider by MediFind in the treatment of Obesity in Children. Her top areas of expertise are Thyroid Cancer, Anaplastic Thyroid Cancer, Secondary Immunodeficiency (SID), and Diabetic Nephropathy.

Conor Mulcahy, DO, is an internal medicine physician. He cares for adults with a range of chronic and acute conditions. “I enjoy being a ‘Jack of all trades’ but have a particular interest in optimizing lifestyle to help patients live healthier lives,” he says.|Dr. Mulcahy earned his medical degree from Lake Erie College of Osteopathic Medicine in Erie. After medical school, he completed a residency at Geisinger Medical Center, where he was resident of the year.|“I love the longitudinal relationships I get to have with patients,” he notes. “I also have a passion for teaching.”|In his spare time, Dr. Mulcahy enjoys ultimate Frisbee and hiking. Dr. Mulcahy is rated as an Advanced provider by MediFind in the treatment of Obesity in Children. His top areas of expertise are Obesity, High Cholesterol, Glucocorticoid-Remediable Aldosteronism, and Familial Hypertension.

Vladan Obradovic, MD, is a general surgeon specializing in bariatric surgery. Dr. Obradovic performs a number of advanced and specialized weight loss surgery procedures, including biliopancreatic diversion with duodenal switch, advanced endoscopy, revisional bariatric surgery, foregut surgery, laparoscopic gastric band (or “lap band”), gastric bypass and gastric sleeve.|Dr. Obradovic has a clinical interest in minimally invasive and robotic surgery.|Dr. Obradovic earned his medical degree from the University of Belgrade School of Medicine in Belgrade, Serbia. He completed residencies in general surgery at the Belgrade School of Medicine, and Health Centre Krusevac in Krusevac, Serbia, and digestive system and hepatobiliary surgery at the University Clinical Center of Belgrade. He then completed general surgery residency and fellowship in bariatric surgery at Geisinger Medical Center in Danville and a certification in robotic assisted surgery at Intuitive Surgical Headquarters in Sunnyvale, CA.|A resident of Danville, Dr. Obradovic is committed to serving his community by giving the best care he possibly can. He was inspired to pursue a career in medicine by his father, who was a physician.|In his spare time, he enjoys spending time with his family and friends and walking his dog. Dr. Obradovic is rated as an Experienced provider by MediFind in the treatment of Obesity in Children. His top areas of expertise are Hiatal Hernia, Obesity, Hernia, Gastric Bypass, and Endoscopy.

Anthony T. Petrick, MD, FACS, FASMBS, is a board-certified general surgeon specializing in esophageal and bariatric surgery. Dr. Petrick performs a number of advanced and specialized surgical procedures including advanced endoscopy, revisional bariatric surgery, laparoscopic gastric band (or “lap band”), gastric bypass, biliopancreatic diversion with duodenal switch and gastric sleeve. He also treats people for various conditions affecting the stomach and gastrointestinal (GI) system, including hiatal and paraesophageal hernia, achalasia and acid reflux (GERD).|Board-certified in general surgery, Dr. Petrick earned his medical degree from Georgetown University in Washington, D.C. He completed general surgery residency at Georgetown University Medical Center in Washington, D.C. He then completed a fellowships in Surgical Oncology at and Beth Israel Deaconess Medical Center in Boston and in Bariatric and Foregut surgery at the University of Pittsburgh Medical Center.|For the past 18 years, Dr. Petrick served as program director for the Geisinger bariatric and foregut surgical fellowship. He now serves as associate program director, acting as a mentor to bariatric surgery fellows. Dr. Petrick has a strong commitment to research in bariatric and foregut surgery and has authored more than 100 articles. Currently, he serves as chief quality officer for inpatient services at Geisinger and Director of the Division of Bariatric and Foregut surgery.|Dr. Petrick is an active member of the Society of Gastrointestinal and Endoscopic Surgeons and a fellow of the American College of Surgeons and American Society of Metabolic and Bariatric Surgeons. He chairs to Data and Quality Committee for the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program and also serves as an editorial board member for the journal Surgical and Obesity-Related Diseases and a columnist for Bariatric Times.|In his free time, Dr. Petrick serves on the board of education at St. Joseph School in Danville. He also coaches the Susquehanna Valley Stampede varsity and junior varsity ice hockey teams.|Clinical Focus: Bariatric Surgery|If you’re a provider who’d like to refer a patient, call our 24/7 referral line at 800-332-8901 or visit www.emr-link.com. Dr. Petrick is rated as an Experienced provider by MediFind in the treatment of Obesity in Children. His top areas of expertise are Obesity, Hiatal Hernia, Hernia, Gastric Bypass, and Endoscopy.

Christine Hanna is a primary care provider, practicing in Gastroenterologist in Danville, Pennsylvania. Dr. Hanna has been practicing medicine for over 10 years and is rated as an Experienced provider by MediFind in the treatment of Obesity in Children. Her top areas of expertise are Malnutrition, Obesity, Short Bowel Syndrome, and Small Bowel Bacterial Overgrowth.

David M. Parker, MD, FACS, FASMBS, is a board-certified general surgeon specializing in bariatric surgery for both adolescents and adults. Dr. Parker performs several advanced and specialized surgical procedures, including gastric bypass, biliopancreatic diversion with duodenal switch, revisional bariatric surgery, laparoscopic gastric band (or “lap band”) and gastric sleeve. He also provides care for various conditions affecting the stomach and gastrointestinal (GI) system, including hiatal hernia, paraesophageal hernia, achalasia and acid reflux.|He has a clinical interest in minimally invasive laparoscopic and robotic surgery.|Board-certified in general surgery, Dr. Parker earned his medical degree from West Virginia University in Morgantown. He completed a general surgery residency at the Dwight D. Eisenhower Army Medical Center in Fort Gordon, GA, followed by a fellowship in bariatric and foregut surgery at Geisinger Medical Center in Danville.|While in medical school, he received the Presidential Award for Excellence in Scholarship. During his fellowship, he received the SAGES Award for best fellow presentation.|Dr. Parker serves as program director for the Geisinger bariatric and foregut surgical fellowship. He has a strong commitment to research in bariatric and foregut surgery and has authored more than 24 published articles.|He is an active member of the Society of Gastrointestinal and Endoscopic Surgeons and a fellow of the American College of Surgeons and American Society of Metabolic and Bariatric Surgeons.|Dr. Parker has served in the United States Army and continues to serve as a lieutenant colonel in the United States Army Reserve. He is also a football enthusiast, rooting for the West Virginia Mountaineers in his free time. Dr. Parker is rated as an Experienced provider by MediFind in the treatment of Obesity in Children. His top areas of expertise are Hiatal Hernia, Hernia, Obesity, Gastric Bypass, and Endoscopy.

Dr. Hosterman is a board-certified and fellowship-trained specialist in nutrition and weight management. Her clinical interests include adult and pediatric malnutrition and comprehensive weight management. Dr. Hosterman attended the Philadelphia College of Osteopathic Medicine, where she received her medical degree. She completed her internal medicine – pediatric residency and then her weight management and nutrition fellowship at Geisinger Medical Center. Dr. Hosterman is certified by the American Board of Internal Medicine, the American Board of Pediatrics, the American Board of Obesity Medicine and the American Board of Physician Nutrition Specialists. Dr. Hosterman is rated as an Experienced provider by MediFind in the treatment of Obesity in Children. Her top areas of expertise are Malnutrition, Short Bowel Syndrome, Small Bowel Bacterial Overgrowth, and Protein Deficiency.

Dr. Kisvarday is a board-certified physician specializing in internal medicine and pediatrics. Her clinical interests include resident teaching. Dr. Kisvarday obtained her medical degree from Louisiana State University. She then completed a residency at Geisinger Medical Center and a residency at the University of Texas Medical Branch, Galveston. She is certified by the American Board of Internal Medicine and the American Board of Pediatrics. Dr. Kisvarday is rated as an Experienced provider by MediFind in the treatment of Obesity in Children. Her top areas of expertise are Type 2 Diabetes (T2D), Maturity Onset Diabetes of the Young, Cerebral Palsy, and Hypereosinophilic Syndrome.

Nilay Donmez, MD, is a pediatric nephrologist. She treats children and adolescents for a wide range of kidney and urinary tract conditions, including kidney stones, UTIs, protein or blood in the urine, glomerulonephritis, electrolyte imbalances, high blood pressure and congenital kidney or urinary tract anomalies. She has a clinical interest in nephrology and weight management.|Dr. Donmez earned her medical degree from Istanbul University Faculty of Medicine in Istanbul, Turkey. After medical school, she completed a residency at Driscoll Children’s Hospital in Corpus Christi, Texas. Following her residency, she completed a fellowship at Children’s National Medical Center in Washington, D.C. Dr. Donmez is rated as an Experienced provider by MediFind in the treatment of Obesity in Children. Her top areas of expertise are Scarlet Fever, Obesity in Children, and Roseola.

Dr. English is a board-eligible physician specializing in family medicine. Her clinical interests include preventive medicine. Dr. English attended the Lake Erie College of Osteopathic Medicine, where she received her medical degree, and completed her residency at Geisinger Wyoming Valley Medical Center. Dr. English is rated as an Experienced provider by MediFind in the treatment of Obesity in Children. Her top areas of expertise are Boils, Folliculitis, Carbuncle, Kidney Stones, and Thyroidectomy.

Dr. Dinko is a board-certified physician specializing in family medicine. He attended The Commonwealth Medical College, where he received his medical degree, and completed his residency at Washington Hospital. Dr. Dinko is certified by the American Board of Family Medicine.|Outside of work, Dr. Dinko enjoys sports. He also likes spending time outdoors, particularly hiking. Dr. Dinko is rated as an Experienced provider by MediFind in the treatment of Obesity in Children. His top areas of expertise are Maturity Onset Diabetes of the Young, Type 2 Diabetes (T2D), Nephrosclerosis, and Renovascular Hypertension.

Dr. Beichner is a board-eligible physician specializing in family medicine. Her clinical interests include hormonal treatment for adult transgender patients (18 years old and up). She attended Jefferson Medical College of Thomas Jefferson University, where she earned her medical degree. Dr. Beichner completed her residency at Washington Hospital. Dr. Beichner is rated as an Experienced provider by MediFind in the treatment of Obesity in Children. Her top areas of expertise are Maturity Onset Diabetes of the Young, Type 2 Diabetes (T2D), Acquired Agranulocytosis, and Hypertension.

Dr. Sundaresan is a board-certified physician specializing in pediatrics and internal medicine. Her clinical interests include preventive care and chronic disease management. Dr. Sundaresan attended Christian Medical College, Vellore, where she earned her degree in medicine. She completed her residency at Geisinger Medical Center. She is certified by the American Board of Pediatrics and by the American Board of Internal Medicine. Dr. Sundaresan is rated as an Experienced provider by MediFind in the treatment of Obesity in Children. Her top areas of expertise are Sinusitis, Maturity Onset Diabetes of the Young, Type 2 Diabetes (T2D), and Relapsing Multiple Sclerosis (RMS).

About Rashid Cheema. Dr. Cheema is rated as an Experienced provider by MediFind in the treatment of Obesity in Children. His top areas of expertise are Thyroid Storm, Neonatal Severe Hyperparathyroidism, Parathyroid Hyperplasia, and Osteitis Fibrosa.

Dr. Sapkota is a board-eligible physician specializing in internal medicine. His clinical interests include cardiovascular diseases, diabetes and related complications as well as wilderness and mountain medicine. Dr. Sapkota attended Manipal College of Medical Sciences, where he earned his medical degree. He completed his residency at Interfaith Medical Center. Dr. Sapkota speaks English, Nepali and basic Hindi.|Outside of work, Dr. Sapkota enjoys hiking, rock/ice/wall climbing and traveling. He also likes to play soccer and volleyball. Dr. Sapkota is rated as an Experienced provider by MediFind in the treatment of Obesity in Children. His top areas of expertise are Hypothyroidism, Maturity Onset Diabetes of the Young, Familial Hypertension, and Glucocorticoid-Remediable Aldosteronism.

Dr. Cover is a board-certified internal medicine physician. He attended The Pennsylvania State University College of Medicine, where he earned his medical degree. He completed his residency at the University of Pittsburgh Medical Center - Mercy Hospital of Pittsburgh. Dr. Cover is certified by the American Board of Internal Medicine. Dr. Cover is rated as an Experienced provider by MediFind in the treatment of Obesity in Children. His top areas of expertise are Decerebrate Posture, Decorticate Posture, Acute Febrile Neutrophilic Dermatosis, and Anemia.

Mark Lentz, MD, is an internal medicine physician who provides comprehensive care for adults. He’s passionate about supporting his patients’ long-term health and well-being through preventive care, chronic illness management and timely treatment of new or acute conditions — large or small.|With decades of experience, Dr. Lentz has developed deep clinical expertise in managing a wide range of adult health concerns, particularly chronic conditions such as arthritis, diabetes and heart disease. He also has a special interest in helping patients manage restless legs syndrome.|Originally from Indiana, Pennsylvania, Dr. Lentz earned his medical degree from Thomas Jefferson University and completed his residency at Allegheny General Hospital. He is a Fellow of the American College of Physicians, a recognition of his dedication to delivering the highest standard of care.|Dr. Lentz is known for his thoughtful, patient-first approach and his genuine desire to make a meaningful difference in the lives of those he serves. Dr. Lentz is rated as an Experienced provider by MediFind in the treatment of Obesity in Children. His top areas of expertise are Anaplastic Thyroid Cancer, Maturity Onset Diabetes of the Young, Type 2 Diabetes (T2D), and Glutaric Acidemia Type 2.

Bijal Patel is an Endocrinologist in Danville, Pennsylvania. Dr. Patel is rated as an Experienced provider by MediFind in the treatment of Obesity in Children. Her top areas of expertise are Hyperparathyroidism, Kallmann Syndrome, Amenorrhea, and Osteitis Fibrosa. Dr. Patel is currently accepting new patients.

Ulonna Ahipue, MD, is an internal medicine physician who provides comprehensive care for adults. She treats a wide range of health concerns — from chronic conditions to new medical issues.|Dr. Ahipue has a special interest in women’s health and preventive medicine, aiming to help her patients live healthier lives through proactive care and education. She earned her medical degree from St. George's University and completed her residency at Danbury Hospital in Connecticut.|In her free time, Dr. Ahipue enjoys traveling and the culinary arts. Dr. Ahipue is rated as an Experienced provider by MediFind in the treatment of Obesity in Children. Her top areas of expertise are Maturity Onset Diabetes of the Young, Type 2 Diabetes (T2D), Postmenopausal Osteoporosis, and Osteoporosis.

Thomas Morland, MD, is a board-certified physician specializing in internal medicine. Dr. Morland has a special interest in preventing chronic illness through lifestyle changes.|“I enjoy working with patients on intensive prevention and placing lifestyle first,” he says. “I find that by incorporating whole foods into their diets, getting more exercise, improving sleep and managing stress, patients can stabilize or even reverse chronic medical conditions and decrease their reliance on medications.”|Dr. Morland attended Yale University, where he received his medical degree, and completed his residency at the Hospital of the University of Pennsylvania. Dr. Morland is certified by the American Board of Internal Medicine and the American College of Lifestyle Medicine.|“The best part of my job is seeing a patient exceed expectations,” he says. “It's great to provide the ‘standard of care,’ but when a patient takes their health into their own hands and collaborates with their healthcare team, we can see patients achieve things they never thought possible.”|Dr. Morland enjoys spending time with his wife and three children, playing the string bass and piano, hiking, playing soccer and swimming. His family has an organic garden in their backyard where “we try to put our own advice into practice,” he says. Dr. Morland is rated as an Experienced provider by MediFind in the treatment of Obesity in Children. His top areas of expertise are Maturity Onset Diabetes of the Young, Type 2 Diabetes (T2D), Pulmonary Embolism, Shwartzman Phenomenon, and Coronary Artery Bypass Graft (CABG).