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About
Dr. Sylvester Ryan, MD is a medical oncology specialist in Middlebury, CT. Dr. Ryan completed a residency at Yale New Haven Hospital. Dr. Ryan is board certified in Internal Medicine.
Education
- Yale New Haven Hospital, Residency Hospital — 1953
- Yale New Haven Hospital, Internship Hospital — 1950
- Columbia U, College of Phys/Surg, Medical School — 1947
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Compare Dr. Ryan with our nearby Medical Oncology Specialists at Hartford Healthcare

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These providers are on the medical staff of Hartford Healthcare.
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Frequently Asked Questions
Dr. Ryan's office is located at 639 BREAKNECK HILL RD, Middlebury, CT 06762. Find other locations and directions.
Dr. Ryan has not yet indicated whether they offer telehealth services. Please contact the office to check for availability/eligibility.
Find contact information here to make an appointment.
Locations
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Practice
- 1 639 BREAKNECK HILL RD, Middlebury, CT 06762 (203) 758-9564