Provider Profile


Endocrinologist at Cooley Dickinson Medical Group Endocrinology

Department + Services


Programs + Specialties


Training + Education

Bachelor of Science in Biochemistry, City College of the City University of New York
Bachelor of Science in Medical Laboratory Science, Hunter College of the City University of New York
Doctor of Osteopathic Medicine, Philadelphia College of Osteopathic Medicine
Post-Doctoral Fellowship in Endocrinology, State University of New York Downstate Medical Center
Residency in Internal Medicine, State University of New York Downstate Medical Center

Board Certifications

Licensed in the Commonwealth of Massachusetts
Licensed in the states of New York and New Jersey (inactive)
American Board of Internal Medicine
American Board of Endocrinology
National Board of Physicians and Surgeons
American Board of Obesity Medicine

My Philosophy

As a general endocrinologist I manage all adult endocrine disorders involving multiple glands including the hypothalamus, pituitary, thyroid, parathyroid, pancreas, adrenal, ovaries, testicles, and bone metabolism. Dysfunction of these glands result in metabolic disorders such as obesity, acromegaly, hyperprolactinemia, hyper/hypothyroidism, thyroid nodules, thyroid cancer, adrenal insufficiency, adrenal tumors (Cushing’s syndrome, hyperaldosteronism, pheochromocytoma), hyper/hypoparathyroidism, diabetes, hypoglycemia, polycystic ovarian syndrome, congenital adrenal hyperplasia, low testosterone, hyper/hypocalcemia, and osteoporosis. I especially enjoy diabetes management, calcium metabolism and doing thyroid biopsies but am proficient in all the areas aforementioned.


Dr. John Nicasio is fluent in Spanish and has a working knowledge of French. He has studied abroad in both Santiago, Dominican Republic and in Cairo, Egypt. In addition to his current specialization, he has also worked as a hospitalist, a pharmaceutical spokesperson and an Assistant Professor of Medicine, at the Tufts University School of Medicine.

Ratings and Reviews for John Nicasio, DO, FACE, ABOM

Cooley Dickinson Medical Group Endocrinology

CONTACT 413-586-2198


Location & Directions 22 Atwood Drive, 3rd Floor
Northampton, MA 01060
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