Dr. Gail O'Brien, MD

Dr. Gail O'Brien, MD

Internal Medicine  ·  
Female  ·  
57 y/o

Accepting new patients

Dr. Gail O'Brien, MD is an internal medicine specialist in Lexington, MA and has been practicing for 23 years. She specializes in internal medicine.

Lahey Health Primary Care, Lexington

16 Hayden Ave

Lexington, MA 02421
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Insurance Accepted

  • Aetna
  • Blue Cross Blue Shield
  • Cigna
  • Harvard Pilgrim Health Care
  • MultiPlan
  • Tufts Health Plan
  • UnitedHealthCare

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

Care Philosophy

This content was provided by Dr. O'Brien "We are here to take care of what matters most, you. Lahey Health offers access to board-certified specialists in nearly every medical specialty and more than 75 primary care practices in over 30 communities providing you with the full continuum of care, all close to home."

1  Specialties

  • Internal Medicine

1  Board Certifications

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

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.


  • Tufts University School Of Medicine
    Medical School | Graduated 1989
  • Letterman Army Med Center
    Internship Hospital | Completed 1990
  • Miami Valley Hospital Wright State University School Med
    Residency Hospital | Completed 1991
  • University Cincinnati
    Residency Hospital | Completed 1993
  • Rhode Island Hospital Brown University
    Fellowship Hospital | Completed 1995
  • Certified Diplomate Obesity Medicine
    Other Education | Completed 2015

Awards & Recognition

Awards & Honors
  • Healthgrades Honor Roll
Media & Publications

Languages Spoken

  • English
  • Spanish

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.

Lahey Hospital and Medical Center

is a Recipient of a Healthgrades Excellence Award
America's 100 Best Hospitals Award

Hospital Quality Award

Dr. O'Brien is on the medical staff at our top-rated hospital.

View awards

Dr. O'Brien's Reviews

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

Likelihood to Recommend (3)

  • 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

    Under 10 minutes
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