Meet the Doctors & Staff

Meet Dr. JoAnn Giesenhaus • Chiropractor

Dr. JoAnn believes in unleashing the passion within you, alleviating your pain and helping you reach your goals to maintain an all-out healthy lifestyle. Dr. JoAnn’s primary goal is to awaken your senses and help you feel great and pain-free.

Core Wellness Center offers hope and new beginnings to the community through greater depths of healing. By educating our patients about proper nervous systems function, we believe every person can have a life of healthy human performance. Chiropractic lifestyle offers individuals the ability to empower their lives and enhance their wellness.


Core Wellness Center was founded with passion and purpose to help as many people as possible by using unique alternative healing methods. Some of these methods are Instrument adjusting(no popping, cracking or twisting), alkaline water, whole food nutrition and many others practices that are specific for your given condition. We are here to empower the community locally and globally by addressing your specific needs.


  • Life University, Marietta, GA Doctorate of Chiropractic, 1996
  • Cleveland Chiropractic College, Los Angeles, CA Physiotherapy Certificate, 1995
  • Montclair University, Montclair, NJ Bachelor of Science, 1991


  • New Jersey, New York, Pennsylvania
“My purpose as a doctor is to share my knowledge, skills and passion for healing with as many people as possible, to help transform their lives by empowering them with the tools and motivation for better health and wellness.” – Dr. JoAnn Giesenhaus
Laurie Haag

Meet Laurie Haag • Chiropractic Assistant

Laurie was born and raised in Little Falls, New Jersey and has been a Chiropractic patient since the age of 3. She worked with her husband in his chiropractic facility for over 16 years and learned of all the health benefits of Chiropractic, massage, nutrition, and overall healthy lifestyle. She is proud to be a member of the Core Wellness Team, who always put their patients care and well-being first in a very friendly and comfortable atmosphere.

Meet Beatrice Carter – Chiropractic Assistant  

Bea has been a resident of Little Falls for over 15 years, where she lives with her husband and 3 children. Bea is passionate about community, friends, and most of all family. She’s an active volunteer for her children’s sports and Purple Stride NJ, which seeks to prevent and raise awareness for Pancreatic Cancer. She loves to travel, go hiking, gardening, and yoga.  She enjoys helping people on their journey to better health at the Core Wellness Center.

Leanne Barbieri

Meet Leanne Barbieri • Certified Massage Therapist

I went to American Institute in Clifton, NJ for Massage Therapy and am a very proud mother to a beautiful little girl. Massage has always held an important place in my life due to being an athlete, it helped me with recovery from injuries as well as pre-game anxiety. Helping people experience massage really benefits because you get relaxation and healing all in one. That is something I’ve  always wanted to put out to the world.

Annette Aviles – Reiki Teacher and Practitioner 

As a Reiki Master Teacher & Practitioner Annette utilize Reiki to clear, straightens and heal the energy pathways, allowing the life force (Prana) to flow in a healthy a natural way. Supporting the body’s natural ability to heal, working on the mental emotional physical spiritual body aspects of the self. Annette is also certified 200RYT, yoga teacher and in her classes, she uses multiple holistic techniques to achieve the Mind, Body and Spirit connection for greater well being. Singing bowls, drumming, crystal bowls, essential oils & incense, meditation, body movements, light touch therapies are some of the tools Annette uses in raising the body’s frequencies. Promoting a state of relaxation and reducing stress.

Linda Baker – Reiki Practioner 

Linda is a certified Jikiden Reiki Practioner with over 25 years in the Health and Wellness Industry. She brings her knowledge and life experience to her practice where she empowers her clients to reduce stress in their bodies, allowing the healing process to take place, and move toward a life filled with good health, peace, and contentment, no matter what is going on outside of themselves.

Manuela Rebelo – Reiki Practioner 

Manuela Rebelo is a registered nurse with more than 30 years of practice. As her focus shifted from acute to preventive care, she developed an interest in Reiki as a modality to maintain balance, reduce stress, and prevent disease. She is now a Jikiden Reiki practitioner level II, a Shamanic Reiki Practitioner level I, and a sound energy practitioner.

Tracy Resnick-Hart

Meet Tracy Resnick-Hart • Hypnotherapist

Tracy Resnick-Hart studied at the Institute of Hypnotherapy under the guidance of Dr. Jaime Feldman, DCH, specializing in “Parts Therapy”. Parts Therapy is a therapeutic hypnosis process in which your conscious mind is put to rest while your subconscious mind is available to accept positive suggestions. As a result, negative or unwanted behavior can be exchanged for positive growth.

Ms. Resnick–Hart has a health and wellness background having taught nutrition for Rutgers Food Stamp Nutrition Education Program and as a facillator for the American Lung Association’s “Freedom from Smoking” program.

Contact Tracy at 917-582-9443 or write to her at


  • 2002 to 2006 Rutgers (FSNEP)
  • 2007- Present American Lung Association
  • Boards/Certifications
  • American Lung Association “Freedom from Smoking Facilitator”
  • Mountainside Hospital Reike Level 1 Certification


  • Black Belt 2nd. Dan Tae Kwon-Do
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