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Mark O'Connor Jr. Jr, MD
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5 Patient Reviews
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Office Hours

  • Mon:8:00am - 4:30pm
  • Tue:8:00am - 4:30pm
  • Wed:8:00am - 4:30pm
  • Thu:8:00am - 4:30pm
  • Fri:8:00am - 4:30pm

Mark O'Connor Jr. Jr, MD

Internal Medicine Physician - Cardiovascular Disease

Biography

Dr. O’Connor aspires to provide the highest quality of cardiovascular care to his patients by combining the science of evidence-based medicine and cutting edge technology with the art of listeni… Read more ›

Featured Review See More Reviews

I have followed Dr Mark O'Conner from the UMass Leominster Hospital! Thanks!…

Anonymous

Summary

Provider Training

UniversityDegreeFocusGraduated
University of Massachusetts Medical SchoolMedical Degree2012

InstitutionFocusYear
Residency - Brown University/Rhode Island Hospital-Lifespan Program Not Specified

Photos

Provider Profile 0Provider Profile 1

Specialties

Languages Spoken
English
Medical Specialties
  • Internal Medicine Physician - Sub-Specialty: Cardiovascular Disease

Accepts New Patients: Yes

Payment Options

Payment Details

Reviews

Average Rating: 5
Number of Reviews: 5
Most Recent Review: 07/31/2025
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Office & Staff Evaluation

Ease of Getting an Appointment
Courtesy of Practice Staff Not rated
Office Appearance & Atmosphere Not rated
Handling of Billing Matters Not rated
Average Wait Time Not Rated

Provider Evaluation

Listening Skills
Clear Explanations
Trust in Decision Making
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Verified Patient

“I have followed Dr Mark O'Conner...”

I have followed Dr Mark O'Conner from the UMass Leominster Hospital! Thanks!

Anonymous 07/31/2025
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Verified Patient

“Dr O'Connor is very personal....”

Dr O'Connor is very personal.

Anonymous 06/22/2025
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Verified Patient

“I always have a wonderful experi...”

I always have a wonderful experience with Dr Mark Oconnor. He is very intelligent and also very easy to talk with. He explains my health problems very clear to me. I really enjoy my office visits with him.

Anonymous 06/12/2025
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Verified Patient

“Dr. O'Connor is the best!...”

Dr. O'Connor is the best!

Anonymous 06/30/2025
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Verified Patient

“Dr. O'Connor was very thorough a...”

Dr. O'Connor was very thorough and took time to explain the options open to me.

Anonymous 06/16/2025

Locations

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Practice Colleagues

Procedures & Services

Procedures & Treatments Offered

    Commonly Prescribed Medications

    Mark O'Connor Jr. Jr, MD has not yet listed the medications that he commonly prescribes.

    Accepted Insurance

    Accepted Insurance

    Mark O'Connor Jr. Jr, MD has not yet specified the insurance plans he accepts.
     

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