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Office
102 Race Track Rd Ste 1
Ticonderoga, NY 12883Phone+1 518-585-6708Fax+1 518-585-3260
Summary
- Dr. Dennis O'Brien, MD is a board certified internist in Ticonderoga, New York. He is currently licensed to practice medicine in New York, Illinois, and Montana.
Education & Training
- Stony Brook Medicine/University HospitalResidency, Internal Medicine, 1982 - 1983
- Hackensack University Medical Center (Mountainside)Residency, Internal Medicine, 1980 - 1982
- Victor Segalen University - Bordeaux College of MedicineClass of 1980
Certifications & Licensure
- NY State Medical License 1983 - 2025
- IL State Medical License 2007 - 2020
- MT State Medical License 2007 - 2019
- NJ State Medical License 1981 - 1991
- American Board of Internal Medicine Internal Medicine