Skip to main content
Daniel O'Brien, MD, Anesthesiology, Lunenburg, MA, Lahey Hospital & Medical Center

DanielO'BrienMD

Anesthesiology Lunenburg, MA

Pediatric Anesthesiology

CEO/Anesthesia Associates of Nashoba

Dr. O'Brien is on Doximity

As a Doximity member you'll join over two million verified healthcare professionals in a private, secure network.

  • Connect with other colleagues in the same hospital or clinic
  • Search all U.S. specialist profiles and refer a patient
  • Read the latest clinical news and earn CME/CEU credits

See Dr. O'Brien's full profile

Already have an account?

Education & Training

  • Children's Hospital/Harvard Medical School
    Children's Hospital/Harvard Medical SchoolResidency, Pediatric Anesthesiology, 1978 - 1979
  • Brigham and Women's Hospital
    Brigham and Women's HospitalResidency, Anesthesiology, 1976 - 1978
  • University of Connecticut (New Britain)
    University of Connecticut (New Britain)Internship, Internal Medicine, 1975 - 1976
  • Universite de L'Etat a Liege Faculty of Medicine
    Universite de L'Etat a Liege Faculty of MedicineClass of 1975

Certifications & Licensure

  • MA State Medical License
    MA State Medical License 1987 - 2025
  • CA State Medical License
    CA State Medical License 1979 - 2025
  • American Board of Anesthesiology Anesthesiology

Hospital Affiliations