About Mary-Beth

Mary-Beth Charno, RN, MSN, ANP-C earned her Master’s degree in Advanced Practice Nursing from Stony Brook University and her Bachelor of Science in Nursing from Pace University. She brings over a decade of experience in oncology nursing, beginning her career at the bedside caring for acutely ill cancer patients in hospital settings. She later advanced to the role of Certified Chemotherapy Nurse, providing outpatient oncology care at Memorial Sloan Kettering Cancer Center and Monter Cancer Center.

A particularly formative period of her career was spent as Nurse Manager at an integrative cancer center on Long Island, where she gained extensive experience in complementary and metabolic oncology approaches, including insulin potentiation therapy, intravenous nutrient therapy, ozone therapy, ultraviolet blood irradiation, and individualized nutritional strategies. This role broadened her perspective on integrative and functional approaches to healing and ultimately led her to pursue formal training through The Institute for Functional Medicine, where she began her studies in functional medicine.

Early in her career, Mary-Beth became Board Certified as a Holistic Nurse through the American Holistic Nurses Association, a foundation that continues to inform and shape her patient-centered approach to care. She has lectured at nursing grand rounds, professional conferences, and wellness retreats, educating clinicians and organizations on the integration of holistic principles into patient care—for both patients and healthcare providers.

As a nurse practitioner, Mary-Beth trained alongside leading clinicians in complex chronic illness, including Dr. Richard Horowitz, where she studied the MSIDS (Multiple Systemic Infectious Disease Syndrome) model for Lyme disease; Dr. Neil Nathan, focusing on the evaluation and treatment of complex mold toxicity and biotoxin-related illness; Dr. Joseph Jemsek, learning his polymicrobial, pulsed-antibiotic treatment strategies; and Dr. Maurice Beer, under whom she further refined her functional medicine expertise. These mentorships form the foundation of her current clinical protocols.

Clinical Education & Professional Training

Master of Science in Nursing (MSN)
Stony Brook University — 2015

Bachelor of Science in Nursing (BSN)
Pace University — 2005

Board Certification
American Association of Nurse Practitioners
Adult-Gerontology Primary Care Nurse Practitioner — 2015

Advanced & Functional Medicine Training

  • Graduate, Functional Medicine Clinical Development Program — Dr. Kara Fitzgerald (2018)

  • Bio-Identical Hormone Replacement Therapy Certification — BHRT Academy (2025)

  • Comprehensive Peptide Therapy & GLP-1 Weight Loss Training (2026)

Clinical Mentorship & Specialized Training

  • Intensive Clinical Mentorship — Dr. Joseph Jemsek (2017)

  • Ongoing Clinical Mentorship — Dr. Neil Nathan, MD & Dr. Jill Crista, ND

  • Mold-Literate Practitioner Training — Dr. Jill Crista (2023)

  • Functional Medicine Mentorship — Dr. Maurice Beer (2017)

  • Tick-Borne & Lyme Disease 15-Month Intensive — Dr. Richard Horowitz (2016)

Additional Certifications & Clinical Training

  • Certified Ozone Therapist — Dr. Frank Shallenberger

  • Ozone Therapy Training — SOP Med

  • EBV Practitioner Training — Dr. Kasia Kines

  • Low Dose Naltrexone Prescriber — Low Dose Naltrexone Research Trust

Institute-Based Education

  • The Institute for Functional Medicine

    • Applying Functional Medicine in Clinical Practice (AFMCP)

    • Gastrointestinal Module

    • Cardiometabolic Module

    • Hormone Module

  • The Center for Mind-Body Medicine

    • Food as Medicine Program (2012)

    • Mind-Body Medicine Level 1 (2011)

Professional Memberships

  • American Academy of Ozone Therapy — Member (2023)

  • International Lyme and Associated Diseases Society

    • Member (Board Approved, 2017)

    • Physician Preceptor Program Completed (2019)

  • International Society for Environmentally Acquired Illness — Member (2019)

  • American Holistic Nurses Association

    • Board Certified Holistic Nurse — 2008

Additional Clinical Training

  • American College for Advancement in Medicine

    • Chelation Therapy Training (2012)

    • IV Nutrient Therapy Training (2012)