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Dr. O'Brien is on Doximity

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Education & Training

  • Middlesex Hospital
    Middlesex HospitalResidency, Family Medicine, 1997 - 2000
  • Carol Davila University of Medicine and Pharmacy
    Carol Davila University of Medicine and PharmacyClass of 1985

Certifications & Licensure

  • CT State Medical License
    CT State Medical License 2000 - 2024
  • American Board of Family Medicine Family Medicine

Hospital Affiliations