Eric Marks, D.C.


• 1999 – Parker College of Chiropractic, Dallas, TX – Doctorate of Chiropractic
• 1995 – University of Delaware, Newark, DE – B.A. Biology
• 1990 – Alexis I. DuPont High School, Greenville, DE – High School Diploma


• 2008 – President of Pure Wellness
• 2003 – Vice President of True Wellness Centers
• 2000 – Associate doctor position in Newark, DE
• 1999 – Started a multi-doctor clinic in Austin, TX –

Ken Decker, D.C.


• 1996 – University of Delaware, Newark, DE
• 1992 – Dover High School – High School Diploma


• 2010 – Owner/Partner of Pure Wellness – Smyrna, DE
• 2001 – Associate Chiropractor of Camp Chiropractic – Middletown, DE
• 1998 – Chiropractic Intern of Life University Clinics, Atlanta, Marietta & Woodstock, GA

Joelle Renaud, D.C., ICCSP


• 2010 – New York Chiropractic College, Seneca Falls, NY – Doctorate of Chiropractic
• 2007 – University of Waterloo, Waterloo, On, CA – B.S.C. Honours in Kinesiology
• 2003 – North Dundas District Chesterville, On, CA – High School Diploma


• 2011 – Associate Chiropractor of Pure Wellness
• 2010 – Associate doctor position in Wilmington, DE

Justin Johnson, D.C.

Dr. Johnson has been in practice for the last 10 years. He had the honor of treating patients in Utah for 2 years, after graduating with his Doctorate of Chiropractic from Palmer College of Chiropractic in Florida. After relocating from Utah, he was in private practice in Pennsylvania for 5 years before beginning to practice in Delaware for the last 2 years, where his practice experience was focused on acute injury patients. Dr. Johnson takes pride in providing a patient centered approach, because one size does not fit all!

Jessica Cortellino, D.C.


• 2018 – Palmer College of Chiropractic, Port Orange, FL -Doctorate of Chiropractic
• 2010 – University of Delaware, Newark, DE – Bachelors of Science in Health & Sciences, Health Behavior Science


• May 2018 – Associate Doctor at Pure Wellness
• January-March 2018 – Preceptorship/Intern at Pure Wellness
• April-December 2017: Student Intern at Palmer College of Chiropractic Nova Clinic

Todd Richardson, D.C.

Dr. Richardson specializes in injury rehabilitation and recovery due to auto accidents, work related injuries and personal injuries as well as every day aches and pains. He also specializes in Whiplash, Carpal Tunnel Syndrome, Extremities, Headaches, Manipulation Under Anesthesia, Allergies and much more.


Rebecca Leary, D.C.


• 2012- Life University, Marietta, GA- Doctorate of Chiropractic
• 2008- University of Florida, Gainesville, FL- B.S. Integrative Biology
• 2004- Dover High School, Dover, DE- High School Diploma


• 2019- Associate Doctor at Pure Wellness
• 2012-2019- Associate Doctor at Dover Family Chiropractic

Michael Giambertone, D.C.


• 2019 – Associate Chiropractor of Pure Wellness
• 2003 – Private Practice – Amityville, NY
• 2001 – Associate Chiropractor, Turner Chiropractic – Elmhurst, NY
• 1998 – Chiropractic Intern of Life University Clinics, Atlanta, Marietta & Woodstock, GA


Justin Dietrich M.S., D.C.

Degrees & Practice History:

  • 1993 Ithaca College – Bachelor’s Degree in Exercise Science
  • 1994 Life College – Master’s Degree in Physiology
  • 1997 Life University – Doctorate of Chiropractic
  • 1998 Suffolk Virginia – Private Practice
  • 2004 Camp Chiropractic – Associate Chiropractor
  • 2007 Rehab and Wellness – Associate Doctor (Owner from 2011 – January of 2021)
  • 2021 Pure Wellness – Associate Chiropractor

Mark Mauragus, D.C.

Dr. Mark Mauragas, a native of Newark, Delaware, and graduate of St. Mark’s High School, has returned to Delaware to help those in need, and to give back to the community which helped mold him into the doctor he is today. After graduating from high school, he pursued a path in the health care field, which culminated in his graduation from the University of Delaware, with a degree in Nutritional Science, in 2006. He continued his studies at New York Chiropractic College and graduated with a Doctorate in Chiropractic, in 2009.

Chris Schellinger, D.C.

Dr. Schellinger was born and raised in Dover, Delaware. He graduated from Dover High School in 1998, then pursued his undergraduate degree in Nutritional Sciences from the University of Delaware, where he graduated in 2002. In 2006 he earned his Doctorate of Chiropractic degree from Sherman College of Chiropractic. Dr. Schellinger with his wife, Angie, and son, Casher reside in Camden. They enjoy time outdoors hiking, cycling, and relaxing on the Delaware beaches.

Vivian Giannakakis, D.C.

As a chiropractic patient myself, I’ve appreciated the continued benefits of the chiropractic
adjustment and the journey it has taken me through. After experiencing frustrating care from
various doctors, following an intense car accident, I finally reached my first chiropractor Dr.
Steve. He took the time to really listen and explain everything, in terms I could understand After
receiving physical relief from my adjustments, I was hooked…

Brooke Mazujian, D.C.


  • 2017 – Doctorate of Chiropractic – Life University, Marietta GA
  • 2014 – B.A of Biological Sciences – Life University, Marietta, GA

Shane Hierlmaier, D.C.


  • Undergraduate Exercise Science from the University of Delaware 
  • Doctorate of Chiropractic Life University 


  • Aircraft mechanic USAF 8 years, Certified Personal Trainer 6 years, Painter 6 years. Specific chiropractic technique courses-Gonstead, SOT, Activator, Toggle, COX flex/Distraction, Physical Therapy modalities and rehab protocols, Thompson, Diversified, Extremity testing and adjusting. 

Licensures & Certifications

  • Delaware State Chiropractic license 
  • Activator Certified