Meet The Doctors

Dr. Eric

Dr. Eric Wruck DC, FNP has been serving patients from in and around Kahului and Makawao, Maui, Hawaii at his practice, Back in Action Chiropractic for almost 30 years. Dr. Wruck provides a variety of treatments including chiropractic care and massage therapy to address issues such as back pain, automobile accident or work related injuries, joint pain, headaches, and more. In his medical practice which can be found at, he offers medical treatments including, physical medicine, orthopedics, conservative pain management, interventional procedures and injections, and regenerative medicine.

Dr. Wruck graduated from Western States Chiropractic College and has been practicing chiropractic in Maui since 1996. He graduated from Herzing University in 2019 and is credentialed and licensed as a Family Nurse Practitioner (FNP). He is a member of the Hawaii Chiropractic Association, the American Chiropractic Association and the World Federation of Chiropractic among others. His patient focused care has helped him to develop a reputation as a thorough and careful healthcare provider, trusted as one of the best by his community. He has a strong relationship with the medical community on the island and was the first chiropractor to have hospital privileges at Maui Memorial Medical Center. 

Outside of his practice, Dr. Wruck enjoys fencing, sailing, and medieval studies. He looks forward to welcoming new patients to his practice.

Back In Action Chiropractic specializes in occupational medicine / work related injuries / worker's compensation and also accepts most insurances.

Dr. Gary

Dr. Gary Helmstetler, has been practicing chiropractic for 23 years and a native of New Mexico. He attended New Mexico State University and earned 2 Bachelor of Science degrees: one in Chemistry and one in Human Anatomy and Physiology. After college, he worked as a chemist at White Sands test facility for NASA and Lockheed Aerospace. He states, “My time at NASA was very rewarding in many ways. Our team was responsible for analyzing the safety of all items being utilized by the space station, space shuttle, and nuclear submarines for air toxicity aimed to prevent the astronauts from unsafe chemical exposure.”  

After a major accident that he discovered the healing power of chiropractic. He sustained a neck injury and in desperation went to a chiropractor. “Six treatments later I was back in the gym; chiropractic literally gave me my life back!”  He had discovered his purpose and eventually attended Parker College of Chiropractic in Dallas, Texas. Upon graduation he joined a medical practice at RHD Hospital and served as the director of Physical Therapy and Rehabilitation for 14 years. “Clinically, I was exposed to complex cases that far exceeded normal chiropractic training.  It was difficult to convince them to let me on board as a chiropractor in a hospital setting, but I was eager to take my skill set into an arena that would make an impact. This was an incredible experience that made me into the clinician that I am today. My primary focus is in re-establishing normal neuro-muscular function utilizing a wide range of traditional chiropractic techniques.” 

He is an avid windsurfer. His love for the sport has led him to travel to many windsurfing destinations, but, “Hawaii has something that has drawn me back over and over. The inner beauty of the people and mentality of Hawaii is like no other. My soul resonates to the islands.”

Back In Action Chiropractic specializes in occupational medicine / work related injuries / worker's compensation and also accepts most insurances.

95 Lono Avenue, Suite #105 | Kahului, HI 96732

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