About Me

I have been a practicing family physician and serving my patients for more than 30 years.

I believe in shared decision making so that patients are engaged in their health care.

I love family medicine because it allows me to have a long-term doctor/patient relationship with a variety of individuals with different ages, different diseases and different perspectives and experiences.

I enjoy the people that I work with and the fact that we look forward to making things better for our patients.

What I enjoy about The Ohio State University Wexner Medical Center is that we’re an integrated healthcare system, where all records are in the same place with computer access from any of our sites. This allows doctors to view a patient’s records and communicate electronically, which supports patient engagement.
  • Chair of Ohio State’s Family Medicine Department for 14 years
  • American Academy of Family Physicians Board of Directors
  • Past President of American Academy of Family Physicians Foundation
  • Best Doctor in America 2017

Procedures and Conditions I Treat

  • Family Practice
  • Hospital Administration
  • Primary Care

Locations Where I Practice

Please note: Not all physicians schedule patients at each listed location. Please call the “Schedule an appointment” number shown above for scheduling assistance.

Education and Training

Education History

Ohio State University College of Medicine

Riverside Methodist Hospital

Academic Information

Board Certification

American Board of Family Medicine

My Department

Family Medicine


The overall patient satisfaction rating is an average of all patient responses to the six doctor communication related questions shown below from the Clinician and Group Consumer Assessment of Healthcare Providers and Systems survey. For additional information about the patient satisfaction survey, please visit our Patient Satisfaction Survey page.

The comments are submitted by patients and reflect their view and opinions. The comments are not endorsed by and do not necessarily reflect the views of Ohio State Wexner Medical Center.

484 Patient Satisfaction Reviews

  • Overall
    4.8 out of 5
  • Explains Things Clearly
    4.8 out of 5
  • Listens Carefully
    4.8 out of 5
  • Gives Understandable Instructions
    4.8 out of 5
  • Knows My Medical History
    4.7 out of 5
  • Shows Respect
    4.8 out of 5
  • Time Spent Together
    4.8 out of 5
  • Reviewed on Aug 12, 2019

    Dr. Welker is the BEST! She listens patiently and explains thoroughly her plan for my care.

  • Reviewed on Aug 09, 2019

    Dr. Welker is very responsive to any and all questions I may have. She is an excellent primary care provider.

  • Reviewed on Aug 03, 2019

    Mary Jo has been my dr. since before she came to be with Ohio state

  • Reviewed on Aug 02, 2019

    I just love Dr. Welker.

  • Reviewed on Jul 30, 2019

    She's the best!

  • Reviewed on Jul 26, 2019

    Dr. M. Welker is the best.

  • Reviewed on Jul 21, 2019

    very good experience

  • Reviewed on Jun 28, 2019

    my care provider was new to me and she explained everything very well

  • Reviewed on Jun 24, 2019

    Dr. Welker is very good. She goes over everything I need tests, labs, etc. I know she is there if I need her.

  • Reviewed on Jun 07, 2019

    Dr. Welker is the best!!

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Consulting and Related Relationships

At The Ohio State University Wexner Medical Center, we support a faculty member’s research and consulting in collaboration with medical device, research and/or drug companies because a faculty member’s expertise can guide important advancements in the practice of medicine and improve patient care. In order to provide effective management of these relationships, the University requires annual disclosures from all faculty members with external interests related to their University responsibilities.

As of 12/20/2018, Dr. Welker has reported no relationships with companies or entities.