Physician Detail

Kathleen Kerr McKnight-Coss, MD


Natchaug Hospital


Psychiatry, Board Certified < Accepting new patients for this specialty

Areas of Interest

Mental Health

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Office Locations

  • Natchaug Hospital

    The key provider of a regional system of care for children, adolescents and adults who are living with mental illness and substance abuse programs.

    189 Storrs Road
    Mansfield Center, CT 06250
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    Phone: 860.456.1311


Dr. Kathleen McKnight is an attending child and adolescent psychiatrist at the Natchaug Hospital Joshua Center Southeast and Joshua Center Old Saybrook programs who is Board Certified in Psychiatry. Dr. McKnight has worked at Natchaug since 2005 as a per diem and returned to the Active Staff in 2011. Dr. McKnight worked in both the inpatient and outpatient psychiatric programs at Lawrence and Memorial Hospital and was the Medical Director at Child Guidance Clinic of Southeastern Connecticut from 1990 to 2000 when they merged with Child and Family Agency of Southeastern Connecticut. She has worked with both children and adolescents for over 27 years. Dr. McKnight has a bachelor’s degree in chemistry and biology from Clark University and graduated from the University Of Connecticut School Of Medicine. Her psychiatry residency was completed at the Institute of the Living in Hartford, Conn. She is a diplomat of both the American Board of Psychiatry and Neurology and of the American Association of Adolescent Psychiatry.


Medical School

  • University of Connecticut School of Medicine 1977 MD


  • Institute of Living


  • Clark University BA

Insurance Accepted*

Aetna, Anthem, BCBS Medicare, 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, Harvard Pilgrim, Health Connecticut, Health Direct, Health New England, Healthy Connecticut, HMC/ Northeast Healthcare, Medspan Commercial, Medspan Medicare, 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.

Hartford HealthCare

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