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New Patient Special, only $50 for a limited time. Call 972-548-2225 today.

h2-117Our McKinney Chiropractic New Patient Special Includes Your:

  • Initial Consultation
  • Comprehensive Exam
  • Two Chiropractic Adjustments
  • Report of Findings

Call to Schedule and please complete the patient forms before your arrival.

H2 Chiropractic is located at:

2001 Central Cir #108, McKinney, TX. 

Make an appointment today and find out for yourself why Dr. Sammy and H2 Chiropractic has been voted “Best of McKinney” in chiropractic care several years.

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McKinney Chiropractor, Dr. Sammy Hardin has been a licensed chiropractor since 2001.  His philosophy and his passion  is to provide families with safe, effective and affordable, natural chiropractic care and influence his patients to make the best decisions regarding their the long-term wellness.

He knows firsthand that regular chiropractic care  keeps families at optimum health and performance by reducing stress, boosting their immune system and relieving pain when it arises.  

Chiropractic is not only for back pain, injuries and car accidents.  Getting regular adjustments plays an important role in maintaining your health now, so you can enjoy a happy, healthy future for years to come.




We are conveniently located in McKinney, Texas near Hwy 75 and University Ave (380). We have received many community awards for our family-type atmosphere and excellent patient practices because our focus is on you and what we can do to promote your wellness in the least stressful way for you. Once you are a part of our H2 Chiropractic family, you just walk-in, sign-in and come on back to see Dr. Sammy. We make it as quick and easy as you like. We also offer alternative services including spinal decompression, acupuncture and massage.


8:00 am to Noon
2:00 pm to 6:00 pm




8:00 am to Noon
2:00 pm to 6:00 pm


2:00 pm to 6:00 pm


8:00 am to Noon




"Before I came to see Dr. Sammy I could hardly bend, and now that I have been to Dr. Sammy I can bend over, I can touch my toes. He has definitely improved my quality of life. I owe so much to him. He will definitely change your life."

Brenda Davis

"I came to him to get help with my allergies. At first I was a little skeptical because you think how can a chiropracter help with allergies, right? He has these little wands that give me pressure where my sinuses are. He gives me electronic acupuncture. It really really helps keep my sinuses clear and I use to have to take allergy medicine every single day; and in the springtime more than once a day, and now I have probably taken three all year. He’s really helped me tremendously."

Carol Short

"I came to see Dr. Sammy because I had a significant difficulty with one of my shoulders. It was a very painless process, it worked very quickly. We were done in four to five minutes each time and within a very short period of time—two or three weeks—in my particular case, I started to see significant improvements in mobility and so it’s been a great experience for me."

Ed Balli

"Two days ago I fell and hurt my right shoulder and I literally couldn’t use my arm, I came to Sammy yesterday and then I came back again today and I can actually use my arm now. Thank you Dr. Sammy."

Nancy Trice

"I was in an accident in November and started chiropractic care because of excessive pain in my back and neck.  I have had back pain off and on  since I was a teenager due to Scoliosis, an abnormal lateral curvature of the spine and I would take the pain killer Advil as needed.  After several visits, I am pain free right now.  I can now continue working out at the gym 4 days a week and maintain a better quality of life and I owe it all to Dr. Sammy Hardin."

Jeff Postell

"I own a dog grooming shop and groom full time.  This involves a lot of lifting.  I also have horses that I like to work and have fun with.  Both of these activities requires a lot of arm and shoulder strain.  I have frequently, for the last 25 years, pulled a muscle in my lower back.  Even though I could barely lift my left arm because of the pain I had for 5 months, it was ultimately the pull in my lower back that brought me to see Dr. Hardin in March.  Up until this time it was a chore to just put my horses in their stalls to feed them let alone do anything fun with them.  After a couple of treatments my back was a lot better.  just a couple of months later, one day I realized my arm wasn’t hurting either!  Now I feel like going out in the barn to play with my horses again.  Thanks to you, Dr. Hardin."



Hablamos Español

We accept ALL major insurance, PI, Auto, LOP, Medicare

No insurance? NO problem. We offer affordable cash pay.


New Patient Special, Only $50

New Patient Special Includes Your:

  • Initial Consultation
  • Comprehensive Exam
  • Two Chiropractic Adjustments
  • Report of Findings
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