Dr. Nicholas Mahoney, a Pennsylvania native, and Penn State alumnus, graduated in 2008 from Jefferson Medical College in Philadelphia, where he received an award for the best average in Internal Medicine in medical school. Dr. Mahoney did his Medical Residency training and Gastroenterology Fellowship at the University of Pittsburgh. In 2014, he entered private practice with a large Gastroenterology group in Harrisburg. He is Board Certified in Gastroenterology. He is a well-rounded Gastroenterologist who can diagnose and treat the full spectrum of digestive diseases and is fluent in all endoscopic procedures, such as EGD and Colonoscopy examinations. He is an active member of the American College of Gastroenterology, the American Society of Gastrointestinal Endoscopy, and the American Gastroenterology Association. He is active on the staff of Heritage Valley Health System Sewickley Campus, Heritage Valley Health System Kennedy Campus (formerly Ohio Valley General Hospital), and Three Rivers Endoscopy Center. Dr. Mahoney enjoys spending time traveling with his wife and two young children. His hobbies include hiking, running, and cheering on the local sports teams. Dr. Mahoney is rated as an Advanced provider by MediFind in Endoscopy. His top areas of expertise are Familial Adenomatous Polyposis, Turcot Syndrome, Gardner Syndrome, Endoscopy, and Colonoscopy.

Ryan M. Levy, MD, is a thoracic surgeon at UPMC Hillman Cancer Center. Dr. Levy specializes in minimally invasive esophageal surgery, minimally invasive lung surgery, esophageal cancer, lung cancer, gastric cancer, gastroesophageal reflux disease, paraesophageal hernias, diaphragm hernias, lung nodules/masses, endoscopic management of Barrett's esophagus and esophageal cancer, diseases of the pleura, mediastinal tumors, tracheal disorders, and inflammatory responses to tissue injury. Dr. Levy is rated as a Distinguished provider by MediFind in Endoscopy. His top areas of expertise are Hiatal Hernia, Hernia, Lung Cancer, Endoscopy, and Gastrostomy.

Volker Musahl, MD, is an orthopaedic surgeon and is board certified in orthopaedic surgery and orthopaedic sports medicine. He is the medical director of the UPMC Rooney Sports Medicine Complex, program director of the sports medicine fellowship program, and a professor of both bioengineering and orthopaedic surgery at the University of Pittsburgh. After receiving his medical degree from Albert-Ludwigs-Universität Freiburg in Germany, Dr. Musahl moved to the United States where he completed his residency at UPMC, followed by a fellowship at the Hospital for Special Surgery in New York City. Dr. Musahl is rated as a Distinguished provider by MediFind in Endoscopy. His top areas of expertise are Hypermobile Joints, Tendinitis, Osteoarthritis, Osteotomy, and Endoscopy.

David Sacco, MD, specializes in internal medicine and is board certified in internal medicine by the American Board of Internal Medicine and is a Fellow of the American College of Physicians. He practices at Moon Medical Associates-UPMC and is affiliated with UPMC Passavant. Dr. Sacco is a proud graduate of Carnegie Mellon University and the University of Pittsburgh School of Medicine, and completed his internship and residency at Virginia Commonwealth University. Dr. Sacco is rated as an Experienced provider by MediFind in Endoscopy. His top areas of expertise are Chronic Cough, Vertigo, Infant Hyperglycemia, Colonoscopy, and Endoscopy.

James D. Wagner, MD, is an internal medicine physician and certified by the American Board of Internal Medicine. Dr. Wagner received his medical degree from the Thomas Jefferson School of Medicine and completed his residency at Allegheny General Hospital. Dr. Wagner's clinical interests include internal medicine. He enjoys rounding on patients at various nursing homes throughout the Greater Pittsburgh region. His free time is spent with his wife, Scottie dogs, and traveling to Disney. Dr. Wagner is rated as an Experienced provider by MediFind in Endoscopy. His top areas of expertise are Enlarged Prostate (BPH), Venous Thromboembolism (VTE), Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, and Endoscopy.

A native of Western Pennsylvania, Dr. Robert Fusco graduated summa cum laude from the University of Pittsburgh. As an undergraduate, he was elected into Phi Beta Kappa scholastic honor society membership. In 1973, he received his medical degree with honors from the University and was elected into Alpha Omega Alpha honor medical society. His specialty training in Internal Medicine and Gastroenterology was at Duke University Medical Center in North Carolina. He has been in practice at Sewickley since 1977. Dr. Fusco is board-certified both in Internal Medicine and Gastroenterology. He is a member of the American Gastroenterological Association, the American Society of Gastrointestinal Endoscopy, the Pennsylvania Society of Gastroenterology, and the American Association of Ambulatory Surgery Centers.He was formerly president of Sewickley Medical Association, a multi-specialty group President of the Center for Digestive Health and Nutrition, and Medical Director of Three Rivers Endoscopy Center. He is certified in Advanced Cardiac Life Support. Dr. Fusco is active on the staff of Heritage Valley Health System Sewickley Campus and Three Rivers Endoscopy Center. He is a participating physician in Pennsylvania Blue Shield and Medicare. His practice is limited to Gastroenterology. He is married, has three children, seven grandchildren, and resides with his wife in Sewickley, PA. . His top areas of expertise are Ulcerative Colitis, Hemorrhagic Proctocolitis, Gastric Dysmotility, Endoscopy, and Colonoscopy.

Dr. Lester E. Stine was born in the Pittsburgh area. He received his undergraduate degree in Human Biology from Johns Hopkins University in Baltimore, Maryland. He remained in Baltimore and received his medical degree from Johns Hopkins in 1986. Dr. Stine then completed an Internal Medicine Internship and Residency at the University Hospitals of Cleveland. He received the Charles Carpenter Award for Clinical Excellence as a Senior Resident. Dr. Stine's interest in liver disease took him to the University of Pittsburgh Medical Center, where he did his Fellowship in Gastroenterology and Hepatology. Dr. Stine is Board-Certified in both Internal Medicine and Gastroenterology. He scored in the top 10% of nationwide gastroenterology board candidates. He is a member of the Phi Beta Kappa Honor Society.Dr. Stine is active on the staff of Heritage Valley Health System Sewickley Campus, Heritage Valley Health System Kennedy Campus (formerly Ohio Valley General Hospital), and Three Rivers Endoscopy Center. He is now President of the Center for Digestive Health and Nutrition and Medical Director of Three Rivers Endoscopy Center. He is a participating physician in Pennsylvania Blue Shield and Medicare. His practice is limited to Gastroenterology. Dr. Stine is a member of the American Medical Association, American College of Gastroenterology, American Gastroenterology Association, and Pennsylvania Society of Gastroenterology.Dr. Stine's interests include liver disease, gastrointestinal tumors, and therapeutic Endoscopy, including ERCP. In his leisure time, he enjoys golf, fishing, cooking, and spending time with his family. Dr. Stine is rated as an Experienced provider by MediFind in Endoscopy. His top areas of expertise are Ulcerative Colitis, Lower Esophageal Ring, Visceromegaly, Endoscopy, and Colonoscopy.

Dr. Ernest Stanley graduated from Memorial University of Newfoundland, Canada, in 1982. He also attended that university's Medical School, graduating in 1986. A residency in Internal Medicine was then completed at the University of Ottawa. Dr. Stanley obtained his specialty training in Gastroenterology at McMaster University, Hamilton, Ontario - a center known for its research in inflammatory bowel disease. He was Chief Resident at McMaster from 1991-1992 and was awarded local and national scholarships for his research regarding the effects of inflammation in diseases of the intestines. Dr. Stanley is Board-Certified in Internal Medicine and Gastroenterology and distinguished himself in these exams by scoring in the top 2% of candidates nationwide. Recently, Dr. Stanley was recertified by the American Board of Internal Medicine by passing written Internal Medicine and Gastroenterology examinations.Dr. Stanley is a member of the American College of Physicians, the American Medical Association, and the Pennsylvania Medical Society. He is active on the staff of Heritage Valley Health System Sewickley Campus, Heritage Valley Health System Kennedy Campus (formerly Ohio Valley General Hospital), and Three Rivers Endoscopy Center. He is a participating physician in Pennsylvania Blue Shield and Medicare. His practice is limited to Gastroenterology. His special interests are inflammatory bowel disease and therapeutic hepatobiliary endoscopy (ERCP), and he is certified in Advanced Cardiac Life Support. Dr. Stanley resides in Sewickley with his wife and four children. Dr. Stanley is rated as an Experienced provider by MediFind in Endoscopy. His top areas of expertise are Crohn's Disease, Ulcerative Colitis, Familial Adenomatous Polyposis, Endoscopy, and Colonoscopy.

Dr. Richard Kim was born in New York and received his B.S. in biology and psychology at Georgetown University in 1983. He received his medical degree from the Medical College of Virginia in 1987. Dr. Kim completed his residency in Internal Medicine and his specialty training in Gastroenterology and Hepatology at the University of Pittsburgh Medical Center, where he later served as chief Fellow. Following his training, Dr. Kim remained an Assistant Professor of Medicine in the Division of Gastroenterology and Hepatology at the University. During his faculty tenure at the University, Dr. Kim was named the Chief of Endoscopy and later the Associate Chief of the GI section at the University Drive VA Medical Center. Through a grant from the NIH, Dr. Kim completed his Master of Public Health degree in Epidemiology in 1997 from the University of Pittsburgh Graduate School of Public Health. His career has been distinguished by awards for excellence in clinical research by the American Society for Gastrointestinal Endoscopy, American Gastroenterological Association, American College of Gastroenterology, and the Glaxo Institute for Digestive Health. Dr. Kim was President of the Medical Staff at Heritage Valley Health System Sewickley Campus from 2010-2012. Dr. Kim served on the Board of Directors of Heritage Valley Health System from 2012 to 2021. Dr. Kim is a diplomat of the American Board of Internal Medicine, certified in Internal Medicine and Gastroenterology. He is an active member of the American Gastroenterological Association, American College of Gastroenterology, American Society for Gastrointestinal Endoscopy, and the Pennsylvania Medical Society. Dr. Kim specializes in esophageal disorders, gastroesophageal reflux disease, cancer of the GI tract, and Therapeutic Endoscopy, including ERCP. He is active on the staff of Heritage Valley Health System Sewickley Campus, Heritage Valley Health System Kennedy Campus (formerly Ohio Valley General Hospital), and Three Rivers Endoscopy Center. He is a participating physician in Pennsylvania Blue Shield and Medicare. His practice is limited to Gastroenterology. Dr. Kim is rated as an Experienced provider by MediFind in Endoscopy. His top areas of expertise are Familial Adenomatous Polyposis, Crohn's Disease, Ulcerative Colitis, Endoscopy, and Gastrectomy.

Dr. Frank Kim (not to be confused with Dr. Richard Kim, his brother) comes to us from the Cleveland Clinic, where he was Assistant Clinical Professor of Medicine. He was also a Therapeutic Endoscopist with the Ohio Permanente Medical Group in Cleveland, Ohio. Dr. Kim has also held teaching positions at the George Washington University Medical Center and the Washington Hospital Center, where he developed the Flexible Sigmoidoscopy Training Program to instruct medical residents about colon cancer screening.Dr. Kim received his B.A. in 1980 from Johns Hopkins University, where he was elected to Phi Beta Kappa. He earned his M.D. in 1984 at the University of Maryland School of Medicine and his Masters in Business Science at John Hopkins in 1996. He completed a fellowship in gastroenterology in 1989 at the University of Maryland and did post-graduate research in molecular genetics. He has published articles about Helicobacter Pylori infection. Dr. Frank Kim is Board Certified in both Internal Medicine and Gastroenterology. Dr. Kim is active on Heritage Valley Health System Sewickley Campus, Ohio Valley General Hospital, and Three Rivers Endoscopy Center staff. He is a participating physician in Pennsylvania Blue Shield and Medicare. His practice is limited to Gastroenterology. He is a member of the American College of Gastroenterology and the American Gastrointestinal Association. In his leisure time, he enjoys playing volleyball, attending live concerts and live theater, and travel. Dr. Kim is rated as an Experienced provider by MediFind in Endoscopy. His top areas of expertise are Ulcerative Colitis, Gastric Dysmotility, Familial Adenomatous Polyposis, Hemorrhagic Proctocolitis, and Endoscopy.

Dr. Vincent Pronesti was born in Pittsburgh and raised in Moon Township. He received his undergraduate degree in Neuroscience from the University of Pittsburgh in 2012. Dr. Pronesti then attended the Philadelphia College of Osteopathic Medicine and graduated in 2016 with a Doctor of Osteopathic Medicine degree. He was elected into the Sigma Sigma Phi honorary service medical society. He then completed his Internal Medicine Residency and Gastroenterology and Hepatology Fellowship at Allegheny Health Network in Pittsburgh, where he served as Chief Fellow, elected by his peers. Dr. Pronesti is active on the staff of Heritage Valley Health System Sewickley Campus, Heritage Valley Health System Kennedy Campus (formerly Ohio Valley General Hospital), and Three Rivers Endoscopy Center. He is an active member of the American College of Gastroenterology, the American Society for Gastrointestinal Endoscopy, the American Association for the Study of Liver Diseases, and the American Osteopathic Association. He is board-certified in both Internal Medicine and Gastroenterology. Dr. Pronesti’s practice includes diagnosing and treating gastrointestinal and liver diseases and performing diagnostic and therapeutic endoscopy and colonoscopy. He resides in Robinson with his wife and two young children. He enjoys spending time with his family and traveling. His hobbies include cooking, golfing, and attending sporting events as an avid Pittsburgh sports fan. Dr. Pronesti is rated as an Experienced provider by MediFind in Endoscopy. His top areas of expertise are Celiac Disease, Malabsorption, Swallowing Difficulty, Colonoscopy, and Endoscopy.

Brian Kelly, MD, specializes in orthopedic surgery and is board-certified by the American Board of Orthopaedic Surgery. He is affiliated with UPMC Shadyside. Dr. Kelly received his medical degree from Indiana University School of Medicine and completed his residency at Allegheny Health Network, followed by a fellowship at Mississippi Sports Medicine and Orthopaedic Center. Dr. Kelly is rated as an Experienced provider by MediFind in Endoscopy. His top areas of expertise are Tendinitis, Osteoarthritis, Bursitis, Tenotomy, and Endoscopy.

Geoffrey Wilcox is a General Surgeon in Sewickley, Pennsylvania. Dr. Wilcox is rated as an Experienced provider by MediFind in Endoscopy. His top areas of expertise are Cholecystitis, Familial Colorectal Cancer, Gallbladder Disease, Gastrectomy, and Pacemaker Implantation.

Barbara Levkoy is a primary care provider, practicing in Internal Medicine in Sewickley, Pennsylvania. Dr. Levkoy is rated as an Experienced provider by MediFind in Endoscopy. Her top areas of expertise are Decorticate Posture, Decerebrate Posture, Hepatitis A, Bicuspid Aortic Valve, and Endoscopy.

Sharon Roseman is a Gastroenterologist in Sewickley, Pennsylvania. Dr. Roseman is rated as an Experienced provider by MediFind in Endoscopy. Her top areas of expertise are Acute Pancreatitis, Childhood Pancreatitis, Crohn's Disease, Hemorrhoids, and Endoscopy.

Michael Cratty is a primary care provider, practicing in Internal Medicine in Sewickley, Pennsylvania. Dr. Cratty is rated as an Experienced provider by MediFind in Endoscopy. His top areas of expertise are Sepsis, Pneumonia, Hospital-Acquired Pneumonia, Ureteroscopy, and Endoscopy.

Veronica Baca is a Palliative Medicine specialist and a Hospital Medicine provider in Pittsburgh, Pennsylvania. Dr. Baca is rated as an Experienced provider by MediFind in Endoscopy. Her top areas of expertise are Liver Failure, Febrile Neutropenia, Heart Failure with Preserved Ejection Fraction (HFpEF), Endoscopy, and Ureteroscopy.

Sultan Mahmood, MD, specializes in gastroenterology and is board certified in gastroenterology and internal medicine by the American Board of Internal Medicine. He is affiliated with UPMC Passavant, UPMC St. Margaret, UPMC Mercy, UPMC Presbyterian, and UPMC Shadyside. Dr. Mahmood completed his fellowships at Beth Israel Deaconess Medical Center - Harvard University and Oklahoma University College of Medicine, residency at Oklahoma University College of Medicine, and medical degree at King Edward Medical University. Dr. Mahmood’s clinical interests include third space endoscopy (including POEM, G-POEM, and ESD), Endoscopic Ultrasound, ERCP, large polyp EMR, and Endoscopic stricture management. His research interests include medical education and third-space endoscopy. He has multiple publications focusing on improving quality metrics for endoscopy and colonoscopy, medical education, and third-space endoscopy. Dr. Mahmood is the Director of Third Space Endoscopy and Advanced Tissue Resection. He is married and has 3 children. Outside of work, he enjoys playing tennis, pickleball, and hiking. Dr. Mahmood is rated as a Distinguished provider by MediFind in Endoscopy. His top areas of expertise are Jaundice, Choledocholithiasis, Gastrointestinal Bleeding, Endoscopy, and Colonoscopy.

Jonathan Hughes, MD, specializes in orthopedic sports medicine and is board-certified in orthopaedic surgery by the American Board of Orthopaedic Surgery. He practices at UPMC Sports Medicine and UPMC Department of Orthopaedic Surgery. Dr. Hughes received his medical degree from the University of Texas Health Science Center at Houston and completed his residency at Baylor Scott & White Medical Center, followed by a fellowship at the University of Pittsburgh School of Medicine. Dr. Hughes is rated as an Advanced provider by MediFind in Endoscopy. His top areas of expertise are Hypermobile Joints, Tendinitis, Osteoarthritis, Osteotomy, and Endoscopy.

Bryson P. Lesniak, MD, is associate professor of orthopaedic surgery in the Department of Orthopaedic Surgery at UPMC. He earned his medical degree at the University of Cincinnati College of Medicine in 2003, and completed an orthopaedic surgery residency at the University of Michigan Health System in Ann Arbor, Michigan. He then obtained fellowship training in sports medicine in the Department of Orthopaedic Surgery at UPMC. Dr. Lesniak is rated as an Advanced provider by MediFind in Endoscopy. His top areas of expertise are Tendinitis, Hypermobile Joints, Baker Cyst, Endoscopy, and Osteotomy.