Dr. David M. Nally

Krishna Urval is an Allergy and Immunologist in Wheeling, West Virginia. Dr. Urval is rated as an Advanced provider by MediFind in the treatment of Sinusitis. His top areas of expertise are Sinusitis, Hives, Allergic Rhinitis, and Common Variable Immune Deficiency. Dr. Urval is currently accepting new patients.

Andrew Vayonis, MD, specializes in allergy and immunology and is board-certified by the American Board of Allergy and Immunology. He practices at Allergy & Asthma Associates of Pittsburgh and is affiliated with UPMC St. Margaret. Dr. Vayonis completed his medical degree at Penn State College of Medicine, residency at the University of Pittsburgh School of Medicine, and fellowship at UPMC Children's Hospital of Pittsburgh. Dr. Vayonis is rated as a Distinguished provider by MediFind in the treatment of Sinusitis. His top areas of expertise are Allergic Rhinitis, Sinusitis, Grass Allergy, and Angioedema.

Thomas Mertz, DO, PharmD, specializes in allergy and immunology and is board-certified in internal medicine by the American Osteopathic Board of Internal Medicine, pediatrics by the American Osteopathic Board of Pediatrics, and allergy and immunology by the American Board of Allergy and Immunology. He practices at Allergy & Asthma Associates of Pittsburgh and is affiliated with UPMC St. Margaret. Dr. Mertz completed his medical education at Lake Erie College of Osteopathic Medicine, residency at the University of Connecticut School of Medicine, and fellowship at Penn State Health Milton S. Hershey Medical Center. Dr. Mertz is rated as a Distinguished provider by MediFind in the treatment of Sinusitis. His top areas of expertise are Allergic Rhinitis, Sinusitis, Grass Allergy, and Allergic Conjunctivitis.