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.

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.

Dr. Toussi lived in California and attended the University of California in Davis where he received his bachelor’s degree in neurology, physiology, and behavior. He earned his medical degree from the University of Pittsburgh School of Medicine, during which time he met his wife, who was born and raised in the South Hills of Pittsburgh. Following medical school, he and his wife traveled to Mayo Clinic in Rochester, Minn. where he completed his residency training in urology. Dr. Toussi has returned to Pittsburgh with his wife to raise their children near family and to serve as a urologist for the greater Pittsburgh community. Dr. Toussi has contributed to several publications on topics regarding robotic surgery for prostate cancer, bladder and kidney cancer, traction therapy for Peyronie’s Disease and men after radical prostatectomy, and a recent book chapter on office-based procedures for infertility. He is also a member of professional and scientific societies including the American Urologic Association (AUA), the Pennsylvania Medical Society (PMS), the American Medical Association (AMA), and the Allegheny County Medical Society (ACMS). Dr. Toussi is rated as an Experienced provider by MediFind in Endoscopy. His top areas of expertise are Upper Tract Urothelial Carcinoma (UTUC), Urothelial Cancer, Bladder Cancer, Nephrectomy, and Ureteroscopy.

Jennifer Totten, MD, specializes in gastroenterology and is board-certified in internal medicine and gastroenterology by the American Board of Internal Medicine. Dr. Totten completed her fellowship at Allegheny General Hospital, residency at the University of Pittsburgh School of Medicine and medical degree at the University of Rochester Medical Center. Dr. Totten is rated as an Advanced provider by MediFind in Endoscopy. Her top areas of expertise are Gastric Dysmotility, Gastroesophageal Reflux Disease (GERD), Barrett Esophagus, Gastrectomy, and Endoscopy.

Jennifer Chennat, MD, specializes in pancreatobiliary diseases and is board-certified in gastroenterology by the American Board of Internal Medicine. She practices at UPMC Digestive Health Care and is affiliated with UPMC Horizon, UPMC St. Margaret, UPMC Children's Hospital of Pittsburgh, UPMC Magee-Womens Hospital, UPMC Shadyside, UPMC Presbyterian, and UPMC Mercy. Dr. Chennat received her medical degree from Thomas Jefferson University Sidney Kimmel Medical College. She completed her residency at Thomas Jefferson University Hospital and fellowships at Loyola University Medical Center and the University of Chicago Medical Center. Dr. Chennat is rated as an Advanced provider by MediFind in Endoscopy. Her top areas of expertise are Hereditary Pancreatitis, Acute Pancreatitis, Chronic Pancreatitis, Endoscopy, and Pancreatectomy.

Dr. Mlecko earned his medical degree from the Temple University School of Medicine in Philadelphia. He completed his residency in internal medicine at Temple University Hospital, where he also trained as a fellow in the specialty of gastroenterology. He is board-certified in gastroenterology and has special interests in hepatology and motility. Dr. Mlecko is rated as an Advanced provider by MediFind in Endoscopy. His top areas of expertise are Watermelon Stomach, Angiodysplasia of the Colon, Turcot Syndrome, Endoscopy, and Gastrectomy.

Tadeusz D. Witek, MD, specializes in thoracic surgery and is certified in surgery and thoracic and cardiac surgery by the American Board of Surgery. He practices at University of Pittsburgh Physicians, Department of Thoracic Surgery and is affiliated with UPMC Presbyterian, UPMC McKeesport, UPMC Magee-Womens Hospital, UPMC Mercy, UPMC Passavant, UPMC Shadyside, UPMC East, and UPMC Hamot. He completed his fellowship and residency at the University of Pittsburgh School of Medicine, and medical degree at Geisinger Commonwealth School of Medicine. Are you already a patient of this provider and have a MyUPMC account? Log in to MyUPMC to schedule. Dr. Witek is rated as an Advanced provider by MediFind in Endoscopy. His top areas of expertise are Pleuropulmonary Blastoma, Hiatal Hernia, Esophageal Perforation, Endoscopy, and Gastrostomy.

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.

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.

George Eid is a General Surgeon in Wexford, Pennsylvania. Dr. Eid is rated as an Advanced provider by MediFind in Endoscopy. His top areas of expertise are Obesity, Gastroesophageal Reflux Disease (GERD), Hernia, Gastric Bypass, and Sleeve Gastrectomy.

Dr. Pilla earned his medical degree from Des Moines University. He completed his medical training with a residency in internal medicine at Cleveland Clinic and completed fellowship training in gastroenterology at University Hospitals in Cincinnati. He is board-certified in gastroenterology. Dr. Pilla is rated as an Experienced provider by MediFind in Endoscopy. His top areas of expertise are Hemorrhoids, Diverticular Disease, Painful Swallowing, Endoscopy, and Colonoscopy.

Dr. Koziara earned his medical degree from the Wayne State University School of Medicine in Detroit. He completed his internship and residency in internal medicine at St. Joseph Mercy Hospital in Michigan. Dr. Koziara completed his fellowship training in gastroenterology at Allegheny General Hospital. He is board-certified in gastroenterology and has special interest in inflammatory bowel disease, nutrition, and preventive care. Dr. Koziara is rated as an Experienced provider by MediFind in Endoscopy. His top areas of expertise are Colitis, Viral Gastroenteritis, Diverticular Disease, Colonoscopy, and Gastrectomy.

Dr. Thomas earned his medical degree from the West Virginia University School of Medicine. He completed his internal medicine residency at Allegheny General Hospital where he also completed his fellowship training in gastroenterology and advanced fellowship training in therapeutic endoscopy. Dr. Thomas is board-certified in gastroenterology and a certified Diplomate with the American Board of Internal Medicine/Gastroenterology. He has a special interest in inflammatory bowel disease as well as nutrition and wellness. Dr. Thomas is rated as an Experienced provider by MediFind in Endoscopy. His top areas of expertise are Diverticular Disease, Chronic Erosive Gastritis, Familial Adenomatous Polyposis, Gastrectomy, and Endoscopy.

Dr. Victain earned her medical degree from Lake Erie College of Osteopathic Medicine. She completed her residency in internal medicine at West Penn Hospital. Dr. Victain was attending physician and completed research in gastroenterology at Lahey Clinic in Massachusetts. She also completed fellowship training at Allegheny General Hospital and is board-certified in gastroenterology. Dr. Victain is rated as an Experienced provider by MediFind in Endoscopy. Her top areas of expertise are Diverticular Disease, Chronic Erosive Gastritis, Diarrhea, Endoscopy, and Gastrectomy.

Mark Kubik, MD, is a board-certified Otolaryngologist – Head and Neck Surgeon. He completed his medical school at Baylor College of Medicine and residency at the University of Pittsburgh Medical Center. He then completed additional fellowship training in advanced head and neck oncologic and plastic surgery at the Medical University of South Carolina. Dr. Kubik specializes in head and neck surgery, thyroid disorders, sino nasal disease, and laryngology. He practices at Metropolitan Ear Nose and Throat Associates - UPMC and is affiliated with UPMC Passavant, UPMC East, UPMC Mercy, and UPMC St. Margaret. Dr. Kubik is rated as an Experienced provider by MediFind in Endoscopy. His top areas of expertise are Throat Cancer, Laryngeal Cancer, Tongue Cancer, Balloon Sinuplasty, and Laryngectomy.

Michael McClincy, MD, is a pediatric orthopaedic surgeon and is certified in orthopaedic surgery by the American Board of Orthopaedic Surgery. He is head of the Adolescent and Young Adult Hip Preservation program at UPMC Children’s Hospital of Pittsburgh and is an assistant professor of medicine at the University of Pittsburgh School of Medicine. Dr. McClincy received his medical degree from the University of Pittsburgh School of Medicine and completed his residency at UPMC, followed by his fellowships in Sports Medicine and Hip Preservation at Boston Children's Hospital. Dr. McClincy’s clinical interests include the management of sports injuries in adolescent and young adult patients with a particular focus on hip disorders in this young, active population. He is also an active clinician-scientist, with 20% of his effort devoted to research endeavors. His research focuses on optimizing the care of young patients with common hip disorders, including femoroacetabular impingement, hip instability/dysplasia, and hip cartilage injuries. View Dr. McClincy's full list of publications from PubMed. Dr. Mcclincy is rated as an Experienced provider by MediFind in Endoscopy. His top areas of expertise are Slipped Capital Femoral Epiphysis, Osgood-Schlatter Disease, Hypermobile Joints, Osteotomy, and Endoscopy.

Noel Jabbour, MD, MS, is the director of the Congenital Ear Center at UPMC Children’s Hospital of Pittsburgh, a specialty center dedicated to the care of children with microtia and aural atresia and other auricular anomalies. He is also the Otolaryngology representative to the Cleft-Craniofacial Center at UPMC Children’s Hospital and is an associate professor of Otolaryngology at the University of Pittsburgh School of Medicine. He is board certified in Complex Pediatric Otolaryngology and in Otolaryngology—Head & Neck Surgery. Dr. Jabbour is rated as an Experienced provider by MediFind in Endoscopy. His top areas of expertise are Laryngomalacia, Otitis Media with Effusion, Micrognathia, Myringotomy, and Mastoidectomy.

Marcus M. Malek, MD, FACS, FAAP, is a pediatric surgeon and is certified in both general surgery and pediatric surgery by the American Board of Surgery. He is clinical director of the division, director of pediatric surgical oncology, founding member of the Pediatric Melanoma Center, and member of the Vascular Anomalies Center. Dr. Malek is also associate professor of surgery at the University of Pittsburgh School of Medicine. He received his medical degree from Rutgers Robert Wood Johnson Medical School, Piscataway, N.J., and completed his residency at the Icahn School of Medicine at Mount Sinai in New York, followed by a pediatric surgery fellowship at UPMC Children’s Hospital of Pittsburgh and a pediatric surgical oncology fellowship at Memorial Sloan-Kettering Cancer Center in New York. Dr. Malek is rated as an Experienced provider by MediFind in Endoscopy. His top areas of expertise are Gastrointestinal Perforation, Adult Soft Tissue Sarcoma, Tracheoesophageal Fistula, Appendectomy, and Nephrectomy.

Stefan Scholz, MD, is a pediatric surgeon in the Division of General and Thoracic Surgery at UPMC Children’s Hospital of Pittsburgh, certified in general surgery and pediatric surgery by the American Board of Surgery. He is director of minimally invasive surgery UPMC Children’s, and assistant professor of surgery at the University of Pittsburgh School of Medicine. Dr. Scholz received his medical degree from Philipps-University Marburg in Germany and completed his training in general surgery at Vanderbilt University Medical Center/Vanderbilt University, Emory University Hospital/Emory University, and Beth Israel Deaconess Medical Center/Harvard Medical School, where he was also chief resident. Dr. Scholz received his pediatric surgery training at University Hospital Mannheim/University of Heidelberg, Germany, and Boston Children’s Hospital/Harvard Medical School, followed by a fellowship at Johns Hopkins Hospital/Johns Hopkins University. Before coming to Pittsburgh, he concluded further subspecialty training in pediatric hepatobiliary surgery in the liver unit at Diana, Princess of Wales Children’s Hospital/University in Birmingham, U.K. Dr. Scholz’s clinical interests include the full spectrum of advanced minimally invasive neonatal and pediatric surgery, including: congenital anomalies, robotic pediatric surgery, pediatric hepatobiliary surgery including biliary atresia and choledochal cysts, colorectal pediatric surgery, chest wall deformities such as pectus excavatum and carinatum, pediatric lung and esophageal surgery including anorectal malformations, Hirschsprung’s disease, inflammatory bowel disease (IBD), and hyperhidrosis. Dr. Scholz strives to minimize postoperative pain for children using minimally invasive surgical techniques in combination with the latest regional anesthesia methods. He focuses on new innovations in pediatric surgery as well as ultrasound-guided interventional techniques for children. He is co-principal investigator of several NIH-funded research projects and has published numerous articles in peer-reviewed journals as well as book chapters. Dr. Scholz has presented at numerous national and international conferences and is editor of the textbook “Diagnostic and Interventional Ultrasound in Pediatrics and Pediatric Surgery.” Dr. Scholz is a member of the American College of Surgeons (ACS), the American Pediatric Surgery Association (APSA), Association for Academic Surgery (AAS), Society of Gastrointestinal Endoscopic Surgeons (SAGES), International Pediatric Endosurgery Group (IPEG), Chest Wall International Group (CWIG), German Society of Pediatric Surgery (DGKCH), and the European Paediatric Surgeons Association (EUPSA). Dr. Scholz lives in Fox Chapel with his wife and 3 children and enjoys riding his bicycle. View the full list of Dr. Scholz’s publications on PubMed. View Dr. Scholz’s profile at the University of Pittsburgh School of Medicine – Department of Surgery, Division of Pediatric Surgery. Dr. Scholz is rated as an Experienced provider by MediFind in Endoscopy. His top areas of expertise are Appendicitis, Esophageal Atresia, Gangrene, Appendectomy, and Gallbladder Removal.

Devin R. Halleran, MD, is a pediatric surgeon in the Division of Pediatric General and Thoracic Surgery at UPMC Children’s Hospital. He is board-certified in general surgery and pediatric surgery. Dr. Halleran is also an Assistant Professor of Surgery at the University of Pittsburgh School of Medicine. He received his undergraduate degree from Hamilton College in Clinton, New York, followed by medical school and general surgery residency at Upstate Medical University in Syracuse, New York. Dr. Halleran then completed a pediatric colorectal research fellowship at Nationwide Children’s Hospital in Columbus, Ohio followed by pediatric surgery fellowship at Oregon Health & Science University in Portland, Oregon. Dr. Halleran is rated as an Experienced provider by MediFind in Endoscopy. His top areas of expertise are Bowel Incontinence, Hirschsprung Disease, Pilonidal Sinus Disease, Colostomy, and Bladder Reconstruction.