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Meet The Team

David Blyweiss, MD, CHCQM

David Blyweiss, MD, CHCQM

David J. Blyweiss, MD began his medical career as a clinical pharmacist in South Florida prior to earning his medical degree from St. George’s University School of Medicine in 1982. This dual background allowed him to appreciate the relevance of conventional pharmaceutical/surgical based treatments in acute medical conditions, but also to recognize where these approaches fell short in treating the vast majority of patients who suffered from the chronic degenerative diseases of “western civilization origin”.

Over the last twenty years, with the nutritional medical knowledge base expanding in the fields of nutrigenomics, proteomics and other related “orthomolecular” disciplines directed towards patients’ biochemical individuality, Dr. Blyweiss became an early adherent, experienced practitioner and now teacher of what would become known as “functional medicine”. Dr. Blyweiss has used this matrix of systems biology to effectively manage and alleviate the symptoms related to the most “difficult-to-treat” conditions by addressing the underlying causes, helping to guide the body to heal itself.

In association with Humana Medical Plans, as an affiliated provider, Dr. Blyweiss also served as member of, and subsequent chairman of, the Quality Assurance Committee and Physician Credentialing Committee from 1985 – 1990. He is adjunct faculty at University of Miami Miller School of Medicine helping to train both future and practicing physicians in “functional medicine”. He is both a local authority and international speaker on a multitude of important medical subjects with a functional medicine approach.

Dr. Blyweiss was one of three researchers doing the early work on chlorhexidine (phisohex, hibiclens) while earning his first post graduate degree at Temple University School of Pharmacy. During medical school he worked with the World Health Organization in vaccinating children in the island nation of Grenada. He was a team member of the physician relief program in Kendall, Florida after Hurricane Andrew in 1994. He has traveled the world, most recently to Gabon and Croatia working closely with teams of specialists to identify new plant life and natural products for possible human benefit. He has consulted for and created state-of-the -art nutritional supplements for multiple nutritional companies since 1999. He helped form Eden Laboratories Ltd. doing regenerative medicine research in Belize, CA. He is currently in private practice in South Florida where he resides with his family.



Rebecca Rivera, APRN

Rebecca Rivera, APRN

Rebecca Rivera is a board certified Family Nurse Practitioner with over 15 years of experience. She has been practicing as an advanced practice registered nurse for the last 5 years specializing in critical care medicine, regenerative medicine, PRP, and IV nutritional therapy. She believes in a compassionate, holistic approach to the health and wellness of her patients.



Marissa Kooima, APRN

Marissa Kooima, APRN

Marisa Kooima is a board certified advanced registered nurse practitioner with over 15 years of health care experience. She has been practicing as an advanced practice registered nurse for the last 9 years. She has a very extensive background including Emergency Medicine, Hospitalist Medicine, Cardiovascular/endovascular surgery and regenerative medicine, PRP, IV nutritional therapy and facial aesthetics. She is also a huge advocate for overall health, wellness and nutrition. She is an NPC athlete who currently competes in the bikini division and will be competing for her IFBB pro card in 2019. Marisa is not only dedicated to her overall health but the overall health of her patients and treats each and every one as the unique individual that they are. She believes that a healthy outside starts from a healthy inside.



Dr. Michael I. Cohen, DC

Dr. Michael I. Cohen, DC

Graduating Cum Laude from the Los Angeles College of Chiropractic Medicine, Dr. Cohen has been a Chiropractic physician for more than 30 years. With previous private practices in New York, North Carolina, California, Connecticut and Florida, he continues to provide optimal patient care for patients in South Florida. Dr. Cohen has served the South Florida community for the past 20 years and continues to do so with commitment, top-quality care, and innovative treatments for his patients. With two specialized practices, Chiropractic and Rehabilitative Care as well as Regenerative Medical therapy, he is able to offer his patients a comprehensive approach to joint pain treatment and management. As the Regenerative Wellness lead educator, Dr. Cohen supports your journey from stem cell-based therapy consultations to post-treatment follow-ups so we can guide your progress.