About Dr. Douglas Hackman


Douglas M. Hackman, D.C. 


  • 1980-1984 Doctor of Chiropractic Cleveland Chiropractic College Magna Cum Laude

  • 1984 Invited into “Who’s Who in American Colleges and Universities”

  • 1975-1979 Undergraduate studies in Chemical Engineering at Vincennes and Purdue Universities

  • Ongoing Continuing Education in radiology, various Chiropractic techniques and philosophy


  • 1989-present Private practice Di Siena Family Chiropractic Centre Irvine, CA

  • 1986-1989 Associate in group practice Corona del Mar, CA

  • 1984-1986 Associate in group practice Newport Beach, CA

  • Other Experience

  • 1989 Assisted Renaissance Corporate Wellness Fairs in bringing “wellness’ screenings and lectures to local industry

  • 1992 Co-founded Orange County Chiropractic Fellowship meetings for Chiropractors, paraprofessionals and their families


  • International Chiropractic Association

Positions Held

  • Preceptor faculty member Los Angeles College of Chiropractic

  • Assistant director of the Orange County Chiropractic Fellowship

  • Core member and a committee chairman for the Health care Ministry for Saddleback Valley Community Church

  • Board Member Doctor’s Injury Network

  • Community Service/ Activities

  • Community Health Fairs for major corporations in Orange County

  • Member of Saddleback Valley Community Church first aid team

  • Set-up and coordinate Health Fairs and Blood drives for Saddleback

  • Chiropractor for Medical Mission Trips to Mexico

  • Speaker for Orange County Wellness Coalition

Personal Interests

  • Cycling, Camping, Hiking and any outdoor sport