Meet The Doctors

Dr. Thomas Mattheson joined Blackman Family Chiropractic in 2010, where he worked side by side with Dr. Michael Blackman. After working with Dr. Blackman for over 8 years, Dr. Mattheson purchased the practice Dr. Blackman, who continues to work in the building doing Clinical Applied Nutritional Counseling.

Dr. Mattheson was born and raised in Andover, MA. He attended the University of Syracuse in NY, where he received a B.S. in Biology Health Science.

In 1984 Tom's father had an accident, falling 18 feet off a ladder while working. He fractured his spine at multiple levels with severe disc herniations. He was told by orthopedic surgeons that surgery was inevitable and that 100% recovery was very unlikely at the time. Hoping to avoid surgery, he began seeing a chiropractor. After several months of chiropractic treatments and exercise to strengthen his spine, the pain had finally and he avoided surgery.

Dr. Mattheson's goal was to become a heart specialist after completing his degrees at Syracuse University. After his dad's experience, his dad asked him, 'Tom, why haven't you thought of becoming a chiropractor?' The idea changed his life forever, and Dr. Mattheson graduated close to home at the University of Bridgeport, College of Chiropractic in CT.

Dr. Mattheson has been practicing for 10 years now and continues to follow his true passion in life by healing and making a difference in the lives of others all around the seacoast community. Dr. Mattheson states, 'I look forward to seeing new and previous patients, continuing to play a role in everyone's health care. It truly is a pleasure and honor to continue to serve the Greater Dover Community after so many years now. We would like to welcome you all into Mattheson Family Chiropractic. Cheers to your health!'

Dr. David Rivera attended Life University in Marietta, GA, the largest chiropractic school in the world, where he graduated summa cum laude in 2018. Prior to attending chiropractic school, he obtained a BS in Athletic Training at the University of Puerto Rico and was awarded for highest GPA in the program in 2014.

After discovering chiropractic from sustaining injuries playing tennis, he became motivated to become a chiropractor and helping people achieve health through chiropractic care. While at Life University, Dr. Rivera was active as a supplemental instructor for courses involving the treatment and diagnosis of orthopedic and neurological conditions, along with the Activator Methods Chiropractic Technique (AMCT). In addition to being certified by the National Board of Chiropractic Examiners (NBCE) in the United States, Dr. Rivera is also certified by the Canadian Chiropractic Examining Board (CCEB).

Dr. Rivera is passionate about working with pregnant and postpartum women, which led to additional training from the International Chiropractic Pediatric Association and subsequent Webster Technique Certification. Webster Technique focuses on achieving proper neuro-biomechanical function in pregnant women to achieve an optimum pregnancy. Furthermore, he has achieved Advanced Proficiency Certifications in Activator Methods Chiropractic Technique (AMCT), Torque Release Technique (TRT), Dr. Rivera is also certified in RockTape, which is used to stabilize injuries and enhance athletic performance.

Dr. Rivera is fluent in Spanish and enjoys working with all types of patients by helping them realize the great benefits of chiropractic care. He looks forward to serving the greater Dover community for years to come. Outside the office, Dr. Rivera is a tennis enthusiast and also enjoys bowling and escape rooms.

Post-Doctoral Certifications:

- Webster Technique
- ICPA Perinatal Certification (in process)
- Activator Method Chiropractic Technique – Advanced Proficiency Rated                 
- Torque Release Technique – Advance Proficiency Certified
- RockTape - FMT Basic and Performance Certified