Discover Chiropractic
Call now
Call now
Website
Call
Discover Chiropractic
Your chiropractor will take the time needed to understand your concerns and determine if we can help you. Before your chiropractic care begins, we will be in agreement on a plan of action to get you the results YOU want. Most of our patients improve within weeks of starting care. Stop relying on medications, shots with harmful side effects, and premature surgeries.

You deserve to do things you love without limitations; we will do everything in our power to help get you there. Because of our thorough corrective care approach, our Castro Valley chiropractors see many difficult cases including disc injuries, neuralgia, and auto accident traumas. Regardless of the severity of your pain and injury, we are here to help you get your life back.
Services
Dr. Hans Freericks first opened Discover Chiropractic in Fremont in 1996. After opening offices in Tacoma, Union City, and San Lorenzo, he opened his fifth office in Castro Valley. We are so excited to be providing Castro Valley with the effective healing of chiropractic care. We're here to offer natural health care for your whole family and to all ages, from infants to seniors.
I agree to refrain from including any personally identifiable information or protected health information in the comment field. Please keep in mind that communications via email over the internet are not secure. Although it is unlikely, there is a possibility that information you include in an email can be intercepted and read by other parties or unauthorized individuals.
Dr. Hans Freericks began his journey as an injury prone young man that spent years going in and out of medical offices for broken bones and sprains. Then while working his way through college at UPS he hurt his back. To avoid surgery and out of desperation he went to a chiropractor. Chiropractic worked so well he changed his course of study and became a chiropractor.
Dr. Sullivan Truong DC is a Bay Area native from San Jose. After graduating from the University of California Riverside with a Bachelor of Science degree in Biology, he earned his Doctorate in Chiropractic from Life Chiropractic College West. His passion for Chiropractic started as a senior at UC Riverside when he went to go see a chiropractor for allergies that would not go away.
A: Doctors of Chiropractic specialize in the structural injuries and the types of soft tissue injuries like whiplash often caused by auto accidents. Medications, shots, and even most physical therapy won't properly address these injuries. Untreated whiplash can lead to chronic pain, arthritis, and permanent disability.
Reviews (16)
Austin K.
Austin K.
Dec 27, 2021
Report
Highly recommended and great staff and doctors,
Pillows are suitable to neck structure and love my new pillow.
Thank you Dr. Sullivan!!!
Gabriella Stange
Gabriella Stange
Dec 05, 2021
Report
Wow, what a positive and happy office/ team. Went in for a consult and left in a better mood than when I came in. Very thorough with the exam and process. Recommend 100%
Tami Williams
Tami Williams
Nov 25, 2021
Report
On behalf of my Aunt G. I am writing this review. She has been suffering for 4 years with back pain. She has been going to Discover Chiropractic for two weeks and is already feeling a difference. She has told me the staff is kind and helpful. Dr. Sullivan has educated her in back/body health. She is very excited to move through this process with the team at Discover Chiropractic which will allow her to live a better life with less pain.
Rosa Gonzalez
Rosa Gonzalez
Sep 16, 2021
Report
I love coming to Discover Chiropractic! They've helped me so much. Highly recommend everyone to come here!
Elizabeth Maurer
Elizabeth Maurer
Sep 03, 2021
Report
I 'discovered' them on a Google search & could not be any happier. There's a reason why they have SO many amazing reviews. They definitely live up to them! After only 4 adjustments my headaches have decreased by at least 30%. They are so kind, warm, friendly, respectful, & knowledgeable. I would definitely recommend them to anyone who wants to feel better... which is you reading this am I right?!?! 😄
Aram Anthony
Aram Anthony
Jul 26, 2021
Report
My journey to Discover Chiropractic started about two months ago. After a couple of days of moderate pain in my neck and arm, everything increased at an almost exponential rate on the third day. All of a sudden, I couldn’t work, which was a problem.
By the time I finally found my way to Discover Chiropractic, I was exhausted and experiencing tremendous pain. I had not been able to sleep for two nights. And I had found exactly one position (with my head tucked into my left shoulder) that provided me with any relief. Everyone at Discover was great in allowing me to switch positions and get some
Andrew & Heather Eckloff
Andrew & Heather Eckloff
Jul 19, 2021
Report
Wow, wow, wow. After neglecting my chiropractic care for too long, I finally made my way in to take care of that car injury that youth was able to hide but time revealed. Upon entering the clean and organized office, I was greeted by Chelsey, the extremely friendly receptionist. Followed by a thorough and educational examination. I took my x-rays, was reviewed, and Dr. Sullivan along with Dr. Hans worked with me to develop a no-pressure plan to improve my standard of living. After the first adjustment, I felt great, but as we worked through our plan, always referenced before we start, I notice
Duane Fagan
Duane Fagan
Apr 16, 2021
Report
Amazing place! I've searched around for a place that actually cared about getting to the root problem of my neck pain. So glad to have found these guys! Definitely recommend!!
Bertha Quezada
Bertha Quezada
Oct 08, 2020
Report
The best chiropractic Dr. Hans is the Best all team are very friendly 100% recommended
Jaimie Knight
Jaimie Knight
Apr 30, 2019
Report
I have been receiving chiropractic care for many years. Just got a new job in Hayward and was referred to Dr. Hans. Truly impressed with the office and their technique. Looking forward to their orientation class and learning more about wellness!
Lori King
Lori King
Jan 11, 2019
Report
Dr Hans is excellent. Everyone at Discovery Chiropractic is friendly and professional. I highly recommend Discover Chiropractic.
Ryan Anselmi
Ryan Anselmi
Sep 06, 2018
Report
I used discovery chiropractic several years ago for a back injury I sustained. Dr Chu was one of the best chiropractors I ever had in 20 years. She was so good, I even referred a coworker who had a great experience as well. Fast forward three years and I returned for some different issues. I was nervous and skeptical because there was a new doctor… named Dr Leon and I was worried about continuity of care. I was wrong. She has been awesome. She explains everything simply but thoroughly and gives my situation the personal attention it needs while developing a corrective plan that has made
Sharon Smith
Sharon Smith
Oct 17, 2017
Report
Love it, love it!!! Came in for afternoons appointment everyone should come!
David Glass
David Glass
Feb 23, 2016
Report
My name is David and have been a patient of Dr. Olivia Chu for about a year. I'm 53 years old and was born and raised in Castro Valley. My fiancé and I were referred to Dr. Chu at Discover Chiropractic by her daughter who discovered her in a promotional ad and for the past year have been a complete fan of hers. In my adult lifetime I have come… across good Chiropractors but Dr, Chu has been the perfect match for both my fiancé and myself. From time to time I experience minor lower back and neck stiffness, mostly due to not keeping up regular exercise, but also stress plays
Vanessa Nordin
Vanessa Nordin
Jan 27, 2016
Report
Dr. Chu knows her stuff. I get regular treatment from her and look forward to them every time. I live a very active life and she keeps me moving and injury free.
Amore Lealta Fiducia
Amore Lealta Fiducia
Jan 26, 2016
Report
Getting tuned up a little extra this week for the San Jose open this weekend and Dr. Chu really takes care of me. She is very knowledgeable and the staff is kind and professional.