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Opal (Thornton) Pettis, MD, Psychiatry, Washington, DC, Holy Cross Hospital


Psychiatry Washington, DC

Child & Adolescent Psychiatry


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  • Dr. Opal (Thornton) Pettis, MD is a board certified psychiatrist in Washington, District of Columbia. She is currently licensed to practice medicine in District of Columbia, Maryland, and Virginia. She is affiliated with Holy Cross Hospital.

Education & Training

  • Boston University Medical Center
    Boston University Medical CenterFellowship, Child and Adolescent Psychiatry, 1992 - 1994
  • Boston University Medical Center
    Boston University Medical CenterResidency, Psychiatry, 1991 - 1992
  • St Elizabeth's Medical Center
    St Elizabeth's Medical CenterInternship, Transitional Year, 1988 - 1989
  • Boston University School of Medicine
    Boston University School of MedicineClass of 1988

Certifications & Licensure

  • MD State Medical License
    MD State Medical License 2014 - 2025
  • DC State Medical License
    DC State Medical License 2014 - 2024
  • VA State Medical License
    VA State Medical License 2014 - 2024
  • CA State Medical License
    CA State Medical License 1990 - 2021
  • American Board of Psychiatry and Neurology Psychiatry

Hospital Affiliations