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Business Details
43 Years
experience
Your Trusted Chiropractic & Holistic Health Partner in Tucson
At LIFELINE Chiropractic & Applied Kinesiology, we specialize in holistic healthcare focused on correcting the root causes of health issues rather than masking symptoms. Since 1983, our practice has combined chiropractic techniques, applied kinesiology, nutrition, and physical therapy to address joint pain, posture imbalances, and systemic health concerns. Dr. Gregory K. Penniston, with over 40 years of experience, leads our team in delivering personalized care that supports the body's natural healing processes. We emphasize preventive strategies, including posture improvement, muscle balance, and dietary adjustments, to reduce reliance on medication or surgery. Our approach integrates advanced diagnostics, such as muscle testing and lab work, to tailor treatments for conditions ranging from chronic pain to digestive disorders.

We prioritize patient education and long-term wellness, fostering healthy longevity through hydration, rest, and mindful living. While we treat a wide array of conditions, we also ensure appropriate referrals when specialized care is needed. Our commitment to excellence is reflected in our patients' feedback, highlighting our distinct, patient-centered methodology. We accept various insurance plans and payment options to ensure accessibility to our services. Our mission remains steadfast: to empower individuals to achieve optimal health through natural, evidence-based practices.
Services
Spinal Adjustments Posture Improvement Nutritional Counseling Therapeutic Exercises Cranial Adjusting Joint Stabilization Muscle Facilitation Visceral Manipulation Pain Syndromes Treatment Gastrointestinal Health
Details
  • Year established: 1983
Highlights and features
  • We offer over 40 years of experience in holistic chiropractic care.
  • Our personalized treatment plans address root causes of pain and dysfunction.
  • We integrate advanced diagnostics with evidence-based chiropractic techniques.
  • Our team prioritizes patient education and preventive health strategies.
  • We accept multiple insurance plans and payment options for accessibility.
Services
Spinal Adjustments
Our spinal adjustments correct posture imbalances and joint misalignments using gentle, targeted techniques. This service alleviates neck and back pain while improving nervous system function. Patients experience reduced inflammation and enhanced mobility through our evidence-based chiropractic care.
Nutritional Counseling
Personalized nutritional counseling addresses digestive issues, energy levels, and systemic inflammation. We analyze dietary habits and perform muscle testing to create customized plans incorporating supplements and food sensitivity management for optimal health outcomes.
Therapeutic Exercises
Therapeutic exercises strengthen muscles, improve joint stability, and prevent future injuries. Our kinesiologists design programs tailored to individual mobility needs, focusing on posture correction and functional movement patterns for long-term wellness.
Cranial Adjusting
Cranial adjusting addresses headaches, TMJ disorders, and neurological imbalances through gentle manipulation of skull bones. This technique improves cerebrospinal fluid flow and reduces stress-related tension for enhanced cognitive and physical performance.
Visceral Manipulation
Visceral manipulation targets organ-related dysfunction by releasing restrictions in connective tissues. This service improves digestive health, reduces chronic pain, and enhances organ system communication through specialized manual therapy techniques.
People
Dr. Gregory K. Penniston
Chiropractor
Dr. Penniston graduated from Sherman College of Chiropractic in 1980 and has practiced since 1982. He combines chiropractic, applied kinesiology, and nutrition expertise to treat diverse health conditions while emphasizing natural healing methods.
Brandi Lester
Office Manager
Brandi Lester manages operations with pharmacy expertise and insurance navigation skills. Her 20+ years in healthcare administration ensure smooth patient experiences while maintaining personalized, family-like service for all clinic visitors.
Questions
What services do you offer?
We provide spinal adjustments, posture correction, nutritional counseling, therapeutic exercises, cranial adjusting, and visceral manipulation for joint pain, digestive issues, and systemic health concerns.
Do you accept insurance?
Yes, we accept most major insurance plans. Our office manager assists with verifying coverage details and navigating deductibles or co-pay requirements.
How long has the practice operated?
LIFELINE Chiropractic has served Tucson since 1983, with Dr. Penniston practicing chiropractic care since 1982.
What payment methods are available?
We accept Visa, MasterCard, checks, cash, and insurance. Online payments are also available through our website.
Are massage therapy services available?
Yes, massage therapy sessions (30, 60, or 90 minutes) are offered Monday and Wednesday afternoons with flexible scheduling options.
Reviews (7)
Cathy Landry
Sep 18, 2021 Report
I was in a neck brace and had MRI and CT and was told I needed surgery for my cervical spondylosis. I was in pain from years of working at a computer but the pain was so intense now I couldn't take it. All the Doctors I've seen just want to prescribe pain meds and Surgery was my last resort as I work at a hospital and hear horror stories. I had seen a couple Chiropractors and they didn't do anything for me.

A co-worker recommended Dr. Penniston, so I made an appointment and so glad I took one last leap of faith because after just a couple visits I left pain free after years and years of constant pain I couldn't believe it. He really was my Life line. His knowledge of body mechanics is unprecedented. It's been years and I haven't had to have surgery and if I start to feel any pain I make an appointment and leave pain free. He has done more for me than any other Health care worker I've seen.
Red Dawn
May 07, 2021 Report
The doctor has changed my life. Worth every penny. Great bedside manner. I get all my supplements from here as I know they are great quality. My life is much better since he is in it
Kathy Banky
Dec 09, 2020 Report
Very knowledgeable about supplements that will help you become and stay healthy. Applied Kineseology is very gentle. My son and my friends and I love him.
Melissa Baird
Dec 02, 2020 Report
This place is amazing! I have lived with hip, back and leg pain for over 20 years and Dr Penniston found the route of the problem and treated me. I went about 6 times, he gave me stretches to do daily and I now only go to stay in alignment. I wish I would have discovered him years ago. What a life changer.
Debbie Nakasone
Jan 19, 2019 Report
Greg is very good at manipulation. He is not like the cracker packers that I have gone to before. Very gentle in adjustments. He believes in muscle testing and even though it seems weird it works and so do the supplements. I have been going to Lifeline for many years and have recommended Greg to several of my friends. He is the only Chiropractor that I have not had to visit on a regular basis, which to me means that he is doing a great job. I go for a tune up about every other month. Really would recommend to anyone who needs a good chiropractor.
Shelby Hawkins
Jun 26, 2018 Report
Dr. Greg is the best. He continues to research natural effective methods and supplements to help his patients. If you want to be healed this is the place to come.
Katy Crawford KTkat
Mar 28, 2018 Report
This is a true 5+ star business! Anyone can rate a place 5 stars based on one treatment, but I'm talking about a lifetime of wonderful care here. I have had some "funky" issues throughout my life so far, and he has always been the one to provide me with answers and a plan to get better. If you need help, especially if you're sick of being sent from one specialist to the next, make an appointment!