About Us

Greg Holmes, Ph.D. is a psychologist who lives in Traverse City, Michigan. On April 1st, 2004 he was diagnosed with sinonasal undifferentiated cancer, an extremely rare and deadly cancer. He was able to survive in large part due to the interventions of his wife, Katherine Roth M.D. Greg and Katherine have written a detailed account of his cancer treatment in their memoir The Good Fight: A Story of Cancer, Love, and Triumph. The book has been described as a “page-turner, a classic cancer survival story”.


Katherine Roth, M.D., is a board certified family physician with 15 years of experience in medical education as the associate director of a family medicine residency program. She is currently in private practice in Traverse City, Michigan where she is a much sought after expert in the field of integrative medicine.