Francis Holistic Medical Center

N. Thomas LaCava, MD, Medical Director                                             Treating the Cause of Complex Chronic Illness

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N. Thomas LaCava, M.D., Comprehensive Environmental Medicine, Pediatric Primary Care

Dr LaCava has been in practice for over 40 years and is devoted to helping the hard-to-diagnose and hard-to-treat chronically ill patients. He is board certified in Environmental Medicine, which focuses on defining and treating the causes of the disease.  His treatments include dietary restructuring, allergy shots, intravenous nutrition, chelation therapy, detoxification, bio-identical hormone replacement and oral nutritional supplementation. Dr LaCava completed a fellowship in neurology and continues with this interest in his current practice treating chronic Lyme disease, mold and chemical toxicities, as well as other neurotoxic disorders.

Education: B.S., University of New Hampshire, Durham, N.H., 1966; M.D., Saint Louis University School of Medicine,

Saint Louis, Missouri, 1972

Internship/Residency: Intern in Pediatrics, Hahneman Medical College and Hospital, Philadelphia, P.A., 1972-1973;

Residency in Pediatrics, Hahneman Medical College and Hospital, Philadelphia, P.A., 1973-1974


Fellowship: Clinical Fellow in Child Neurology, Saint Christopher's Hospital for Children, Philadelphia, P.A.,

1974-1975

Academic Appointment: Instructor in Pediatrics, UMASS Medical School, 1982-1992.

Membership and Office in Professional Associations: Worcester District Medical Society/Grievance Committee chairman

Massachusetts Medical Society, American College of Advancement in Medicine, American Academy of Environmental Medicine (Fellowship/Member Board of Directors), Christian Medical Society, American Scientific

Licensure: State of Massachusetts

Board Certification: American Board of Environmental Medicine, American Board of Pediatrics

Recent Conferences Attended:

American Academy of Environmental Medicine - yearly

International Lyme and Associated Diseases Society (ILADS) annual scientific conference 

Mycotoxins and Chronic Disease Seminar - January 19, 2013 - Sponsored by The Institute for Medical Studies (IMS)


We provide integrative, functional medicine in Central Massachusetts in the Worcester area. Many of our patients come from Boston and the Metrowest Boston area as well as all areas of Massachusetts and the other New England states.

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