Dr. Greg McDonald, D.C.
Meet Dr. Greg McDonald, D.C.
Dr. Greg McDonald, D.C., has been practicing chiropractic care since 1984. He grew up in Southern California. He earned his Doctor of Chiropractic degree from the Los Angeles College of Chiropractic. He has spent over four decades treating patients at Lake Forest, California.
Dr. Greg uses manual adjustments, cellular detoxification, and functional DNA analysis to address the actual cause of the spinal dysfunction. His care is built around understanding what is happening in the body and creating a plan that fits the individual.
Dr. Greg is also a certified Golf Injury Specialist. He has experience working with golfers who are managing pain, recovering from sports injuries, or returning to play without pain.
Chiropractic Education & Certifications
- Undergraduate Degree: Bachelor’s Degree, Cal State Fullerton, 1980
- Chiropractic School: Doctor of Chiropractic, Los Angeles College of Chiropractic, 1984
- Professional Certification: Golf Injury Specialist (pain-free swing mechanics, injury rehabilitation, golf-specific stretching)
- Licensure: Licensed and practicing in California
Specialized Training in Chiropractic Care
- Brain-Based Neurological Rehabilitation
- Advanced Spinal Decompression
- Whiplash Injuries
- Disability Evaluation
- Science-Based Nutrition (Levels 1–3)
- State Qualified Medical Evaluation
- Sports Injuries
- X-ray Diagnosis
Dr. Greg keeps his training current so his patients get care that reflects where the field actually is today.
Clinical Experience & Patient Care Approach
Dr. Greg has 40+ years of experience treating patients. His expertise covers three areas:
Manual Adjustments: He performs hands-on spinal adjustments tailored to each patient’s condition. No two adjustments are the same. He works with what he finds during evaluation and adjusts accordingly.
Cellular Detoxification: He addresses the underlying causes of discomfort at the cellular level. This means looking beyond symptoms and supporting the body’s own ability to function better.
Functional DNA Analysis: Dr. Greg uses DNA analysis to understand how a patient’s genetics influence their health. This helps him build a care plan that fits the individual, not a generic template.
What Inspired Dr. Greg to Become a Chiropractor
Growing up, Dr. Greg’s parents took him to a chiropractor instead of a medical doctor. That early exposure shaped the way he thinks about health and recovery. He was drawn to the idea of helping the body heal without relying on medicines or surgery. He built his entire career around that principle.
Patients come to Dr. Greg when they want answers that go beyond a prescription. He is a resource for people who want to understand what is happening in their bodies and address it directly. Many of his patients have been coming to him for years, some for decades.
He is straightforward about what chiropractic can and cannot do. He looks at the whole picture and works with patients from there.
“As I look back on my journey, I am grateful for the countless lives I have touched and the enduring relationships I have built. My commitment to the well-being of my community and my passion for chiropractic care remain unwavering.” –
Dr. Greg McDonald
Family Life & Personal Background
Dr. Greg is happily married and blessed with four wonderful grown children who inspire him every day. Family is the cornerstone of his life, providing the balance and support that fuels his professional endeavors.
Outside of the clinic, Dr. McDonald is committed to his own health and fitness. He has a strong interest in biohacking for longevity. He grew up playing basketball and golf and enjoys traveling in his spare time.
Book an Appointment
Dr. Greg works with patients at every stage, whether you are dealing with chronic back pain, sciatica, or migraines, or simply want to understand how your body functions.
He listens to your history, looks at what is happening in your body, and explains exactly what he finds. From there, he develops a plan tailored to your specific condition.
Your first visit starts with a phone call. Call (949) 586-2731 or book online using the booking tool below.
Verified Reviews
Andy Santos
After over a year of doctor visits and physical therapy, I hit a plateau and was still in a lot of daily pain. Dr. McDonald’s treatment plan, combined with Natalie’s effective massage therapy...
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Bryn DenHeyer
I originally came here to have my infant daughter treated by Dr. Waters for torticollis. He was a miracle worker! I started having pain and asked if he worked on adults- he did! I saw him a few times...
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Divya Kapoor
Best massage place ever!! Melina's neck and back massages are lifesavers, especially after long hours hunched over a computer. She really knows how to target those tight spots to ease tension...
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Nancy Clinkerbeard
Greenlight Chiropractic is fantastic. From the moment you walk in and they know you by name, Jeremy is an awesome manager, facilitator of your visit and needs. Next get time for Natalie to work on you...
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Sabina Uskenova
I really liked it there!! It’s very calm and nice atmosphere that you can trust. Dr, Waters was very patient and explained everything. He didn’t try to sell me a thousand adjustments as you...
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Sylvia Mireles
Hi!!! I just had my last adjustment with Dr. Waters. He has been a gem, his expertise- his sincerity and super genuineness, has been a bright star as part of my overall healing and amazing experience on this...
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