Dr. Christopher E. Hester

Hassan Zammam, MD, is certified in internal medicine by the American Board of Internal Medicine. He practices at Blair Medical Associates, Station Medical Center and is affiliated with UPMC Altoona. He completed a fellowship at Allegheny University Hospitals, residency at Bon Secours Hospital, residency at Damascus University, and his medical degree at Damascus University Medical College. Dr. Zammam is rated as an Advanced provider by MediFind in the treatment of Mouth Sores. His top areas of expertise are Melorheostosis with Osteopoikilosis, Melorheostosis, Osteopenia, Colonoscopy, and Gastrostomy.

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 Mouth Sores. His top areas of expertise are Obesity, High Cholesterol, Glucocorticoid-Remediable Aldosteronism, and Familial Hypertension.

Kristina Wagner, MD, specializes in urgent care and is board-certified in internal medicine by the American Board of Internal Medicine and pediatrics by the American Board of Pediatrics. She is affiliated with UPMC Lititz, UPMC West Shore, UPMC Community Osteopathic and UPMC Pinnacle Harrisburg. Dr. Wagner completed her residency at Penn State College of Medicine and medical degree at the Medical College of Pennsylvania. Dr. Wagner is rated as an Advanced provider by MediFind in the treatment of Mouth Sores. Her top areas of expertise are Cellulitis, Otitis, Sinusitis, and Acute Cystitis.