Dr. Mary Patricia O'Day MD is a female Obstetrician & Gynecologist, has 20 years of experience and practices in Obstetrics & Gynecology, Maternal & Fetal Medicine, and Obstetrics.
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Dr. Mary O'Day has 1 office location.
Mary P O Day
400 E 3rd St
Duluth, MN 55805

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Locations and availability (1)
License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

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Specialties & Research

Dr. Mary O'Day, MD is board certified in Obstetrics & Gynecology and Maternal & Fetal Medicine.

  • She has special expertise in 2 areas:
  • Hot Flashes
  • Menopause

Education & Awards

Dr. O'Day graduated from University of Miami .


Dr. O'Day has 10 hospital affiliations:

  • St Lukes Hospital Of Duluth 
  • Essentia Health – St. Marys Medical Center 

Accepted Insurance Plans

Dr. O'Day accepts these health insurances in at least one office:

  • United Healthcare - 12 plans
  • Blue Cross Blue Shield of Minnesota - 5 plans
  • Medica Health Plans - 16 plans
  • Anthem - 7 plans
  • Wellmark Blue Cross Blue Shield - 1 plan
  • United Health Group, Inc. - Americhoice - 2 plans
  • Humana - 9 plans
  • Great-West Healthcare - 1 plan
  • Cigna - 3 plans


  • Spanish

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Additional Information
Where does Dr. Mary P. O'Day practice?
Dr. Mary O'Day practices Obstetrics & Gynecology, Maternal & Fetal Medicine, and Obstetrics near Duluth, MN.
See Duluth Obstetricians & Gynecologists.