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Dr. Michael J. Fairfax, D.O.


Dr. Fairfax is a Rheumatologist in private practice in the State of Arizona since 1987. Dr. Fairfax earned his Bachelor of Science Degree from Northeast Missouri State University in 1973, and earned his Doctor of Osteopathic Medicine Degree from Kirksville College of Osteopathic Medicine in 1977. From 1978 until 1985, Dr. Fairfax served our country as a General Medical Officer for the U.S. Navy. From 1978 through 1980 as a member of the staff for Internal Medicine for the Naval Hospital in San Diego. Dr. Fairfax was a member of the staff of Internal Medicine for the Naval Hospital in Charleston, South Carolina from 1983 to 1985.  Once Dr. Fairfax completed his military term, he returned to St. Louis and served his Fellowship of Rheumatology at St. Louis University School of Medicine, Department of Internal Medicine, Division of Rheumatology, between 1985 and 1987.  


Dr. Fairfax has been involved in hundreds of research trials for many of the major pharmaceutical companies specializing in medications for Rheumatoid Arthritis and Osteoarthritis.  He has held Staff Appointments for E.W. Sparrow Hospital in Lansing, Michigan as the Chairman for the Infection Control Committee and for Banner Baywood Hospitals in Mesa, Arizona as Consulting Staff.


Dr. Fairfax has received many accolades during his career such as Outstanding Education at Mesa General Hospital, Fellowship Research Grant at St. Louis University School of Medicine, Active Teaching Certificate for the American Academy of Family Practice and the Distinguished Public Service Award by the Arthritis Foundation.  He is a Fellow Member with the American College of Rheumatology, a Member with American Osteopathic Association and a Member with the International Society for Clinical Densitometry.  


W. Richard Horn, FNP-C

W. Richard Horn is a licensed /nationally certified Family Nurse Practitioner (FNP).  He received his Master of Science Degree in Nursing/Family Nurse Practitioner from the University of Phoenix in 2004.  Richard also received his Bachelor of Science Nursing Degree from the University of the State of New York, Regents College (now Excelsior College) in 1999.  Richard has spent many years serving our military in management and medical capacities such as a Career Advisor, Battle Stress Counselor in Operation Desert Storm. He served as a medical technician for the emergency room and intensive care units for the US Army Hospital, and he served 4 years as an order-of-battle analyst for active and reserve US Marine Units.  From March 1992 through November 2004, Richard served as a Medical Administrator Officer for the US Air Force Reserves.  

From 1992 until 2009 Richard held positions as Emergency Room Nurse, Family Nurse Practitioner and Staff Nurse Practitioner for Clinics and Hospitals within the State of Arizona. Richard has received many accolades during his career and is currently participating as a member of many professional membership organizations, such as the American Academy of Nurse Practitioners, American College of Nurse Practitioners, Reserve Officers Association and the Emergency Nurses Association.