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Meet The Chiropractors

Dr. Hilary Cohen


Dr. Hilary Cohen has always been passionate about the health and wellness of others. She had been a headache sufferer for most of her life, and after successful treatment with care she was converted to a lifelong chiropractic supporter.

In 2010, she began her graduate education at New York Chiropractic College, where she received her Doctorate in Chiropractic. She is also nationally board certified to practice Physiotherapy and has a Bachelor’s degree in Exercise Science, from the University at Buffalo. Dr. Hilary’s unique approach to chiropractic care will help you to experience a pain-free lifestyle.

Make an appointment today to see how Dr. Hilary Cohen can help you achieve your health goals.

Dr. Brett D. Spiller


Dr. Brett Spiller has over 19 years of experience as a Doctor of Chiropractic. He uses holistic, all natural, “gentle” chiropractic techniques to make patients feel better in the shortest amount of time, without drugs or surgery.

Dr. Spiller entered the chiropractic field a few years after he sustained a severe back injury, and experienced first-hand the tremendous recuperative benefits of chiropractic care.

During his extensive career, Dr. Spiller has helped people with a variety of ailments and health conditions including headaches, neck, back pain, leg pain, and scoliosis. He treats patients of all ages from adolescents to seniors.

Dr. Jill Clemenza


Dr. Clemenza is excited to join the practice of Back 2 Health Long Island. Dr. Clemenza is originally from NJ and graduated in 1998 from Life University with a Doctorate degree in Chiropractic and a Bachelors degree in Nutrition. She has been practicing on Long Island for the past 20+ years. She has experience with pre-natal & pediatric care, injuries related to auto accidents, spinal disc bulges/herniations, sports & work-related injuries as well as posture correction & wellness care for the whole family.

Dr. Matthew Winokur


Dr. Matthew Winokur was born in Huntington, New York and raised in East Northport, New York. He received his Bachelors degree in Biology at Stony Brook University in August, 1996. He then went on to receive his doctorate at Life University in June, 2000.

Following his internship, he began practicing in Georgia and then on Long Island in a high volume office where his main concentration was caring for patients in acute trauma. Dr. Winokur offers excellent hands-on chiropractic technique as well as a unique emotional sensitivity to patient suffering. He currently continues to treat patients as well as provide administrative support and management to all the professional staff.

Dr. Winokur is the proud father of two daughters where he enjoys most of his free time.

Dr. Daniel Bokor


Dr. Daniel Bokor is a graduate of the National College of Chiropractic. He had a private practice in the Rockaways for 36 years, running a multi-specialty practice with emphasis on wellness, preventative care, and sports injuries. He recently joined Back 2 Health. He is certified by Titleist Performance Institute with emphasis on proper golf mechanics and injuries. He also testifies as an expert witness on liabilities and personal injury matters. In his spare time he spends his days golfing, kayaking, and enjoys a good bottle of red when relaxing.

Dr. Joanna Fantini


Dr. Joanna earned her doctorate degree from Life University in Marietta, Ga. She has special interest in pediatric care as well as specific cervical and extremity adjusting and soft tissue techniques in addition to educating patients on nutrition. She has worked with numerous chiropractors, allopathic doctors, and physical therapists in various types of wellness offices in NY and NJ. Besides attending seminars on various topics for continuing education, she supports the Parkinson’s Research Foundation, Making Strides Against Breast Cancer, and The Humane Society.

She loves meeting new patients and helping them reach their wellness goals and a pain-free lifestyle.

Dr. Ronni Zorn


Dr. Ronni pursued her chiropractic career because chiropractic adjustments saved her mom from back surgery 40 years ago. Dr. Ronni has always been passionate about helping others and educating them on living their healthiest and happiest lives. Dr. Ronni graduated from New York Chiropractic College in 1986. She earned her Certified Chiropractic Sports Practitioner certificate in 1987. In addition, she is certified as a Loomis Digestive Health Specialist. Dr. Ronni is currently pursuing her Nutritional Endocrinology Practitioner certification. In addition, Dr. Ronni holds a certification as an Energy Codes facilitator and as a High Performance Coach. Dr. Ronni has also had extensive training as a health and wellness coach. Dr. Ronni is passionate about chiropractic and natural approaches to health, including healthy eating, mindfulness, meditation, and movement.

Dr. Ronni has years of experience with pre-natal and pediatric patients. She has worked with patients with headaches, back pain, sports injuries, irregular menstrual periods, asthma, and allergies that have had significant benefits from chiropractic care.

Dr. Ronni’s hobbies include ballroom dancing and volunteering for local animal rescues and training dogs for them.