Dr. Mary O'Brien, MD

Dr. Mary O'Brien, MD

Internal Medicine  ·  
Female  ·  
Age 52
Dr. Mary O'Brien, MD is an internal medicine specialist in South Weymouth, MA and has been practicing for 27 years. She graduated from Stony Brook Univ Hsc Sch Med in 1991 and specializes in internal medicine.

55 Fogg Rd # 97

South Weymouth, MA 02190

Contact Information

(781) 340-8000

Insurance Accepted

  • Aetna
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield of Louisiana
  • Blue Cross Blue Shield of Massachusetts
  • Cigna
  • First Health (Coventry Health Care)
  • Harvard Pilgrim Health Care
  • MultiPlan
  • Tufts Health Plan

*Please verify this information when scheduling an appointment.

Learn about Dr. O'Brien

Be confident in your decisions by checking out your provider's top areas of care, education, patient reviews and more. Learn about finding the right doctor for you.

Dr. O'Brien's Experience

Dr. O'Brien's experience matches your search based on the following criteria:
  • Based on total number of patients treated over the last 12 months
  • Specializes in Internal Medicine
  • Board certified in Internal Medicine
  • No malpractice claims found
  • No sanctions found
  • No board actions found

1  Specialties

  • Internal Medicine

1  Board Certifications

  • Internal Medicine
    Accredited by: American Board of Internal Medicine*

119  Conditions Treated


Read Less

11  Procedures

Background Check

0 Malpractice Claims

No malpractice history found for Massachusetts.

0 Sanctions

No sanctions history found for the years that Healthgrades collects data.

0 Board Actions

No board actions found for the years that Healthgrades collects data.


  • Stony Brook Univ Hsc Sch Med
    Medical School | Graduated 1991
  • Umass Med Center
    Residency Hospital | Completed

Awards & Recognition

Awards & Honors
  • Healthgrades Honor Roll
Media & Publications

Dr. O'Brien has no media or publications listed.

Languages Spoken

  • English

Memberships & Professional Affiliations

Dr. O'Brien does not have any memberships or affiliations listed. If you are Dr. O'Brien and would like to add memberships or affiliations, please update your profile.

Dr. O'Brien's Reviews

Likelihood of recommending Dr. O'Brien to family and friends
14 total reviews

Likelihood to Recommend (14)

  • 5
  • 4
  • 3
  • 2
  • 1

Dr. O'Brien's Performance

  • Trustworthiness

  • Explains condition(s) well

  • Answers questions

  • Time well spent


Office & Staff Performance

  • Scheduling

  • Office environment

  • Staff friendliness

  • Average wait time

    10 to 15 minutes
Are you Dr. O'Brien?
Make it easy for patients to share their feedback. Also manage your personalized profile!

Nearby doctors with similar experience

Endocrinology, Diabetes & Metabolism
Internal Medicine
Internal Medicine
Internal Medicine
Infectious Disease Medicine
Internal Medicine
Internal Medicine
Internal Medicine