Dr. Vasilios KalonarosMD

Internal Medicine

at Vasilios C. Kalonaros, MD — Smithtown, NY

About

Vasilios C. Kalonaros, MD earned his Bachelor of Science in Biology from Fairleigh Dickinson University in Teaneck, NJ in 1980. He then earned his Doctorate of Medicine from the University of Athens Faculty of Medicine in Athens, Greece in 1986. He completed both his internship and Internal Medicine residency at Long Island College Hospital in Brooklyn, NY, finishing in 1990. The Long Island College Hospital Department of Internal Medicine recognized him with the John M. Edson Award for Most Outstanding Resident in 1989-1990. He holds certificates from the Federal Licensing Examination and the Educational Commission for Foreign Medical Graduates. He speaks both English and Greek.

Dr. Kalonaros began his career as Vice-President of Western Suffolk Medical Group, PC from 1990 to 1995. He has served as President of North Suffolk Medical Associates, PC since 1995. His guiding belief is that every patient is unique and deserves a strong personal relationship with their physician. Many of his patients consider him a close member of their family, a distinction he holds with pride. He focuses on each patient's health, wellness, and emotional concerns to help them reach and sustain their best health.

Education & Training

Undergraduate

Fairleigh Dickinson University, Teaneck, NJ, Bachelor of Science, Biology, 1980

Medical School

University of Athens Faculty of Medicine, Athens, Greece, Doctorate of Medicine, 1986

Residency

Internal Medicine, Long Island College Hospital, Brooklyn, NY, 1988-1990

Additional Training

Internship, Long Island College Hospital, Brooklyn, NY, 1987-1988

Certifications

Federal Licensing ExaminationCertificate of Educational Commission for Foreign Medical Graduates

Languages

English, Greek

Who is Dr. Kalonaros right for?

Dr. Kalonaros suits adults seeking a long-term, relationship-centered internist. Patients managing chronic conditions such as hypertension, high cholesterol, or type 2 diabetes benefit from his thorough, preventive approach. He works well with patients who want a physician they can reach after hours and on weekends. Those who value unhurried visits and a doctor deeply familiar with their full health history will find his practice a strong match. He also sees patients across family units, often caring for multiple members of the same household.

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Frequently Asked Questions

Dr. Kalonaros specializes in internal medicine. He focuses on preventive care, comprehensive wellness planning, and the management of chronic conditions including hypertension, high cholesterol, and type 2 diabetes. He takes a whole-person approach, addressing health, wellness, and emotional concerns together.

Dr. Kalonaros earned his medical degree from the University of Athens Faculty of Medicine in Athens, Greece in 1986. He completed his internship and Internal Medicine residency at Long Island College Hospital in Brooklyn, NY, finishing his residency in 1990.

Yes. The Long Island College Hospital Department of Internal Medicine awarded Dr. Kalonaros the John M. Edson Award for Most Outstanding Resident in 1989-1990. This recognition reflected his clinical performance during residency.

Dr. Kalonaros has practiced internal medicine in private practice since 1990. He served as Vice-President of Western Suffolk Medical Group, PC from 1990 to 1995. He has led North Suffolk Medical Associates, PC as President since 1995, giving him more than three decades of private practice experience.

Dr. Kalonaros speaks both English and Greek. This allows him to serve patients who prefer to communicate in Greek.

Dr. Kalonaros believes every patient is unique and deserves individualized attention. He works to build a strong personal relationship with each patient so he can address their specific needs. Many of his long-term patients consider him a close member of their family.

Dr. Kalonaros holds affiliations with St. Catherines of Siena, Huntington Hospital, Long Island College Hospital, and Gurwin Jewish Geriatric Center. These affiliations allow him to coordinate care for patients who need hospital-based services.

Yes. Dr. Kalonaros is reachable by phone after hours and on weekends. Members can contact him directly for urgent matters outside of regular office hours.

Dr. Kalonaros holds a certificate from the Federal Licensing Examination and a Certificate of Educational Commission for Foreign Medical Graduates. He holds a New York state medical license.

Doctor profile last updated June 8, 2026