Kathleen M Davis, CRNP

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.