Balakrishna R Ragoor, MD

Kristina Johnson, MD Kristina Johnson, MD, is a primary care physician with AHN Primary Care Institute, specializing in family medicine. She treats patients for overall health, injuries, and illness, as well as focusing on preventive exams, healthy lifestyle education, managing chronic disease, and contraceptive management. Dr. Johnson went to medical school at Medical University of South Carolina in Charleston, South Carolina. She did her residency and her fellowship in faculty development at University of Virginia Medical Center in Charlottesville, Virginia. Dr. Johnson is certified by the American Board of Family Medicine and is affiliated with the American Academy of Family Physicians and the Society for Teachers of Family Medicine. She believes that everyone deserves high-quality, evidence-based care.

Mark Tomich Jr. is a certified physician assistant (PA-C) who specializes family medicine. His clinical interests include diabetes, hypertension, hyperlipidemia, and heart disease. He earned a Bachelor of Science in rehabilitation at the University of Pittsburgh and a Master of Science in physician assistant studies at King’s College in Wilkes-Barre, Pennsylvania. Mark is certified by the National Commission on Certification of Physician Assistants. He’s committed to providing high-quality, compassionate care and listening to the needs of his patients. Mark cares for patients 18 and older.

Melissa Galvin, PA-C, ATC Melissa Galvin is a surgical physician assistant with AHN Orthopaedic Institute, specializing in orthopaedic surgery. She is skilled at performing joint and soft tissue injections, orthopaedic evaluations, post-operative care, and aiding in the operating room with patient setup, prepping, and surgical assistance. She received her Bachelor of Science in Athletic Training from Central Michigan University in Mount Pleasant, Michigan, and her Master of Science in the Physician Assistant Studies Program from the University of Pittsburgh in Pittsburgh, Pennsylvania. Melissa is certified by the National Commission on Certification of Physician Assistants and is a Certified Athletic Trainer. She has worked at various health centers with a focus in sports medicine, rehabilitation, athletic training, and physical therapy.