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Trettel, Joseph D., MD, PhD





Providing the best care to our patients and their companions requires communicating in a way everyone understands. Interpreter services are available 24 hours a day, 7 days a week, 365 days a year. All spoken languages are available, as well as American Sign Language (AS/L).

Accepting New Patients
  • Interventional Psychiatry
Not Currently Accepting New Patients
  • Psychiatry

Areas of Expertise
Neuro-Degenerative Disorders

Hospitals and Organizations

  • Integrated Care Partners
  • Behavioral Health Network
  • Institute of Living
  • Hartford Hospital


Brigham and Women's Hospital, Harvard Medical School

Graduate School
University of Connecticut ‐ Neuroscience

University of Connecticut School of Medicine

Medical School
University of Connecticut School of Medicine

University of Connecticut School of Medicine
Institute of Living - Hartford Hospital

Professional Organizations

  • Society for Neuroscience
  • Society for Cognitive Neuroscience
  • American Neuropsychiatric Association


Aetna, Anthem, BCBS Medicare, CarePartners of Connecticut, Cigna Healthcare, Colonial Cooperative Care, Community Health Network of Connecticut, Inc., Connecticare, Connecticare Commercial, Connecticare Medicare, Corvel, Coventry, Essence Healthcare, Evercare, First Health Group Corp., Focus, Health Connecticut, Health Direct, Health New England, Healthy Connecticut, Multiplan, Northeast Health Direct, One Health Plan/ Great-West Healthcare, Oxford Health Plans, Prime Health Services, Private Health Care Systems, Inc., Senior Whole Health, United Healthcare, WellCare of Connecticut, Inc.

This information is subject to change at any time. Please check with your insurance provider before scheduling your appointment or receiving services to confirm they are a participating member of the Hartford HealthCare network.