

Oncology
William Smithy, M.D.
East Setauket, NY
Dr. William Smithy, MD is a General Surgery Specialist who practices in East Setauket, NY. He is 72 years old and has been practicing for 45 years.
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Credentials
Years in Practice
45+ years
Peer Recognition
- Castle Connolly — Top Doctor
2002-2026 (25 years)
- Healthgrades — Healthgrades Honor Roll
Clinical Focus
Subspecialties
Surgical Oncology
Conditions & Treatments
Chemotherapy
Insurance(s) Accepted
Please verify your coverage with the provider — plan participation can change.
Practice Details
Hospital Affiliations
- Suny/stony Brook University Hospital
Conditions Dr. Smithy treats
Insurance accepted
Frequently asked
Does Dr. Smithy accept Aetna insurance?
William Smithy's public profile lists Aetna, Blue Cross Blue Shield, and CareFirst plus 8 more health plans as accepted plans. Plan participation can change — confirm directly with the practice before your visit.
Where does Dr. Smithy practice?
William Smithy practices in East Setauket, NY with hospital affiliations including Suny/stony Brook University Hospital.
What does Dr. Smithy specialize in?
William Smithy is a board-certified oncology specialist with focus areas in Surgical Oncology.
How long has Dr. Smithy been practicing?
William Smithy has 45+ years of clinical experience in oncology.
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