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Grail Engine Technologies

Dr. Denis Brownridge PH.D.


  • Lansing Eastern High School, 1960
  • Michigan State University, East Lansing, Michigan Bachelor’s Degree, 1965
  • Palmer College Of Chiropractic, Davenport, Iowa Doctor of Chiropractic Degree – Magna Cum Laude – 1969
  • Pettibon Chiropractic Clinic, Tacoma, Washington Internship, 1969-1970
  • National College of Chiropractic, Lombard, Illinois Post Graduate Education - Chiropractic Orthopedics 1973-1974



  • Basic Science Certificate 1319, State of Utah, February, 1968
  • Certificate 17379 Basic Science, State of Michigan, December, 1968
  • Diplomate, National Board of Chiropractic Examiners, May, 1969
  • Chiropractic License [Escrowed], State of Washington, August, 1969
  • Chiropractic License 2338, State of Michigan, State Board of Chiropractic Examiners, January, 1970
  • American Council of Chiropractic Orthopedics of American Chiropractic Association, November 1973, Board Qualified.
  • American College of Chiropractic Orthopedists Association, December, 1983, Board Qualified



  • State of Michigan, Department of Management and Budget, Bureau of Office of Health and Medical Affairs
  • Workers’ Compensation Health Care Cost Advisory Committee, 1983-1985
  • Capital Area United Way Chiropractic Fund Raising Liaison, 1987 and 1988
  • Physicians Health Plan [H.M.O.] Credentials Committee 1989-1991
  • Michigan Chiropractic Network Corp. [Non-profit I.P.A.] Chairman, November 1996 to June 2004


Professional Memberships

  • American Chiropractic Association
  • Michigan Association of Chiropractors
  • Michigan State Chiropractic Orthopedic Society [Past President, 1977-1979]
  • Pi Tau Delta, International Chiropractic Honor Society
  • Palmer College Chapter



  • Outstanding Service Award, Michigan State
  • Chiropractic Orthopedists, 1978, Michigan State Chiropractic Association
  • Meritorious Service Award, 1985, Michigan State Chiropractic Association
  • Meritorious Service Award, 1990, Michigan Chiropractic Society