Effective Regenerative Treatments

Experience the latests advancements in regenerative cell therapy.

Our Practice

If you’re looking for regenerative treatments in Wilmington, Harbor Comprehensive Health offers non-invasive medical procedures, for a wide range of medical conditions, including chronic pain and joint injury. In Wilmington, patients can trust Harbor Comprehensive Health to help them achieve their wellness goals and find the path to optimal wellness. In order to provide relief for a variety of issues, we take an integrated approach to health care that treats patients like whole people rather than a collection of symptoms. Because of this dedication to finding the root cause of medical issues, at Harbor Comprehensive Health, chronic joint pain and other problems are solved by utilizing regenerative treatments. There’s no better place to find answers for conditions that include but are not limited to:

  • Back Pain & Neck Pain
  • Arthritis Pain 
  • Muscle & Ligament Injuries
  • Shoulder Pain and Joint Injuries
  • Knee Pain and Knee Arthritis
  • Sciatica Leg Pain
  • Peripheral Neuropathy 
  • Disc Herniations and Disc Bulges
  • Spinal Stenosis
  • Failed Back Surgery Treatment 

At Harbor Comprehensive Health, we provide regenerative treatments that our patients can trust. If you’re seeking a solution for a medical problem like chronic pain in Wilmington, it’s time to call for a consultation.


Quick Appointments

Contact our friendly staff to schedule an appointment that works with your schedule

Knowledgeable Staff

Our staff of medical professionals have the experience and training necessary to get you back on track
Dr. John Simmonds

Dr. John Simmonds


Dr. Simmonds received his medical degree from Howard University College of Medicine graduating in the top of his class with honors. He later trained in orthopaedic surgery at The Mount Sinai Hospital in New York City and Martin Luther King Medical Center in Los Angeles where he received exceptional training, insight and intellect into treating multiple common and complex orthopaedic and medical conditions.

Dr. Simmonds has been in private practice for 12+ years with emphasis on management of common and complex medical and orthopaedic conditions through non-surgical methods and has provided the highest quality of medical care to his community. This care includes patient education, chiropractic, functional medicine, physical medicine, physical therapy, and rehabilitative treatments.

Dr. Simmonds is the co-founder of PlasmaGenix INC, a premiere ortho-biological regenerative medicine company focusing on tissue repair and remodeling through stems cells. Dr. Simmonds is also a co-owner of Spade Skin Care Medical, which offers state-of-the-art cosmetic therapeutics ranging from minimally invasive to advanced office-based surgical procedures. He also presently has 17 skill nursing home contracts with emphasis in management orthopaedics and wound care cases throughout the Greater Los Angeles area.

Bridget Jemison

Bridget Jemison


I was born in Los Angeles, to wonderful loving parents who encouraged me to strive to be my best each day. I graduated from a magnet silver seal high school and received my Bachelor of Science degree in Biology from Cal State Dominguez. I then went on to graduate from the post-baccalaureate program for Physician Assistant at Charles Drew University of Medicine and Science.

I was that child who at an early age knew that I wanted to be able to help others when I grew up. I was always drawn to science and space in school and becoming an astronaut with special emphasis on delivering health care in space to other astronauts seemed like the perfect career; Having a father who worked in the Aerospace industry probably helped to stimulate my desire to work as an astronaut and ultimately for NASA.

Unfortunately my childhood asthma derailed my dream of becoming an astronaut so I reset my sights on providing health care to my community, which turned out to be more rewarding than I could have imagined. I enjoy every minute of every day, performing the services that I have been trained to do in a conscientious and caring manner. I have worked in Urgent Care, Orthopedic/Physical medicine, and general practice for many years. Meeting new patients and seeing their lives change continues to motivate me every day.

Denise Guzzardo

Denise Guzzardo



  • Masters of Medical Science – Nova Southeastern University 2008
  • Bachelors of Arts in Psychology– University of Central Florida 2006


  • PA Licensure – California Medical Board 8/2013
  • PA Licensure – Florida Medical Board 9/2008
  • NCCPA Licensure 9/2008
Dr. Tim Collins

Dr. Tim Collins


Coming from a family of ministers and computer software analyst, Dr. Collins knew he wanted to be either a minister or computer software analyst. Dr. Collins ended up being a chiropractor, which explains why he shows the passion/concern to help his patients live healthy lives, and if they are not, let’s get to the root of the problem to determine, why not?

Dr. Collins received his first degree with a bachelor of Science, Biology from Morehouse College, and a Chiropractic degree from Pasadena College of Chiropractic in 1984. He later went on to study on functional medicine at Functional Medicine Institute. Dr. Collins has been in private practice for over 32 years formerly with Collins Chiropractic Group. In 2011, Dr. Collins joined with Harbor Comprehensive Health so that he could offer an integrated approach to his patients for the treatment of spinal and extremity related conditions. I love to work to patients to help them reach their true health potential. I am very fortunate to be able t work with the medical staff providing this unique approach for health conditions to south bay and harbor area communities.

Dr. Collins has a special emphasis in the treatment of musculoskeletal orthopedics, neurological injuries and other chronic conditions.

DR Collins is a certified disability evaluation 1992, a qualified medical examiner for the state of California 1992. His post graduate education involves, functional medicine, Cervical and Lumbar spine conditions and we as the biomechanical links to lower back pain and lower extremity dysfunction. Dr. Collins is a member of the California Chiropractic Association and the American Chiropractic Association. He lectures extensively around the country on reversing diabetes through functional medicine as well as cost containment in health care cost through Chiropractic.

Contact us today to schedule your FREE initial consultation!