Suggest an Edit Name* Categories* Doctor Hospital Pharmacy Add category State* Locality* ZIP* Street address* Phone* Website Opening hours Monday: 09:00 am — 05:00 pm Tuesday: 09:00 am — 05:00 pm Wednesday: 09:00 am — 05:00 pm Thursday: 09:00 am — 05:00 pm Friday: 09:00 am — 05:00 pm Saturday: 09:00 am — 03:00 pm Company description Dr. Dennis S O'Brien located in the city of Saint James, state New York. The legal address of the Doctor 403 Lake Ave. Directions to the Doctor Dr. Dennis S O'Brien can be found on our interactive map. Ask your questions by calling 6318627062 on workdays.</br></br></br>NPI number: Data not provided</br>Provider's gender: Data not provided</br>Practice names: Data not provided</br>Board certifications: American Board of Internal Medicine Certification in Internal Medicine Your comments (not for publishing) * — Required information Dr. Dennis S OBrien - Saint James ← View details 403 Lake Ave, New York, Saint James, 11780, Saint James, New York 11780 6318627062