Received his Doctor of Chiropractic degree in 1979, graduating magna cum laude from Northwestern College of Chiropractic. Since 1979 he has been one of the Clinical Directors of Physicians Health and Injury Center, now Advanced Wellness and Injury Center. Dr. Markowitz has completed a three-year diplomat program in Occupational Healthcare, and frequently consults many corporations on ergonomics as well as the prevention and treatment of work-related injuries. Dr. Markowitz is a member of the Foundation of Wellness Professionals and the Danbury Hospital Spinal Surgery Committee.

In addition, Dr. Markowitz lectures on the topics of Type 2 Diabetes Reversal, sports and work injury prevention, natural solutions to health problems, carpal tunnel syndrome, decreasing the harmful effects of stress, acupressure, chiropractic and wholistic health.