Meet the Doctors

Rated as one of the most trusted chiropractic practices in the Tri- Valley, our doctors use only the Gonstead Technique to deliver holistic healing to our patients. We are known for taking on tough cases, and we’re exceptional at restoring our patients’ health.

Your well-being is our passion. We are excited to bring this mission to you. Find out why over 5,000 patients already trust us, and finally find relief in your own pains.

View Our Doctors

Choose Your Clinic Location:

Pleasanton, CA

Concord, CA

Dr. Zakariya Champa, DC

Dr. Zakariya (Zak) Champa received his Doctor of Chiropractic degree from Palmer College of Chiropractic in San Jose, CA. One day, while playing football, he injured his lower back and couldn’t walk for two weeks. He found a Gonstead Chiropractor who helped him eliminate all pain in the first two adjustments. This inspired him to pursue chiropractic as a career to help others experience being freed from pain. 

He is a passionate Chiropractor at Intero Chiropractic, where he is known for his precise adjustments and warm smile. Dr. Zak is on a mission to meet all types of people and get them to a better qualify of life. 

He’s attended more than 250 hours of Gonstead seminars so that he can remain focused on improving the health of patients and applying the Gonstead technique to transform their lives. In his free time he enjoys basketball, tennis, golf, billiards and taking hikes in nature or spending time with family.

Dr. Fiona Cheung, DC

Dr. Fiona Cheung received her Doctor of Chiropractic degree from Life Chiropractic College West in Hayward, CA. She was born and raised in Hong Kong and moved to the United States when she was 14. She can speak fluent Cantonese and Mandarin.

She received a Bachelor’s degree in Exercise Biology from University of California, Davis. Her interest in the field of healthcare began at a very early age, she came across chiropractic care one day and decided she wanted to become a chiropractor so she could help a lot more people.

Her mission is to improve the quality of life through the power of chiropractic. She has accumulated 200+ hours of additional training in the Gonstead System and has been continuing to improve her knowledge in the great Gonstead work. She works hard and plays hard. In her free time, she loves to play badminton and do all kinds of outdoor activities.

Dr. Seunghwan Kim, DC

Dr. Seunghwan Kim earned a Doctor of Chiropractic degree from Palmer College of Chiropractic in Davenport, Iowa. The college is the first chiropractic college that produced chiropractors recognized worldwide. He was nominated for Excellence in Gonstead knowledge and skills in the Gonstead Seminar while serving as the technique chairman of the Palmer Gonstead Club.

Dr. Kim has attended numerous seminars and interned under a legendary chiropractor, Dr. Richard Burns, who was a chairman of the "Technique Department" at Palmer College of Chiropractic for three years.

Dr. Kim participated in sports like snowboarding, skiing, water-skiing, CrossFit, etc, and was injured while playing sports. His injuries made him interested in chiropractic. He believes chiropractic care can enhance both athletic performance and general health.

Dr. Kim aspires to use his Gonstead technique and knowledge at the highest level. He continues to spend time studying, reading chiropractic and healthcare articles, and going to seminars.

Dr. Kim sees patients of all ages and with various conditions. The most fulfilling part of being a chiropractor is seeing his patient's life-changing improvements after receiving Chiropractic care.

When Dr. Kim is not in the practice, he enjoys spending time with his wife.

Dr. Luke J. Sparaccio, DC

Dr. Luke J. Sparaccio was born and raised in Long Island, New York. He became interested in chiropractic when he attended a personal training program at the age of 18. It was at this time that Dr. Luke knew that Chiropractic was his calling. After receiving a bachelor’s degree in Biology from SUNY Cortland, he attended Sherman College of Chiropractic in Boiling Springs, SC.

Dr. Luke’s additional training includes 250+ hours of training in the Gonstead System of analysis and completion of Basic I and II training of Orthospinology, a Specific Upper Cervical technique. He is currently enrolled in a 200-hour online post graduate studies course from Functional Medicine University.

In his free time, along with improving his knowledge and understanding of the body, he is constantly reading and exploring the outdoors. He has a deep passion and commitment for educating and empowering people to live and function at their highest potential.

Meet Intero's Founder


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