Mark Landon, MD
Physician, Professor
Maternal Fetal Medicine
Conditions and expertise
- Gestational Diabetes
- Obstetrics
- Reproductive Health
- High-Risk Pregnancy
- Pregnancy Complications
- Preconception Care
Locations
- The Ohio State University Wexner Medical Center
Academics and research
Department: OB/GYN
About
- Gender
- Male
Biography
I practice in obstetrics and gynecology, specializing in high-risk pregnancy. This includes an emphasis on diabetes in pregnancy. My focus on maternal fetal medicine involves treating these and other medical complications during pregnancy.
Informing my patients about their pregnancy care is a vital aspect to my practice. I am also an advocate for birth options such as vaginal delivery after cesarean section. I believe in providing patients with comprehensive care while listening and providing answers to questions that may arise.
The people at The Ohio State University Wexner Medical Center remain central to my long career. I am blessed to work with a team of talented and committed individuals who put patients first.
When I'm not at work, I like to relax with my family, travel, read and attend Ohio State football games.
Highlights
- Named to Castle Connolly’s list of “America's Top Doctors”
- Named to Castle Connolly's “Regional Top Doctors” list
- Best Doctor in America, 2017-2025
Conditions and expertise
- Diabetes Mellitus
- Gestational Diabetes
- High-Risk Pregnancy
- Obstetrics
- Preconception Care
- Preeclampsia
- Pregnancy Complications
- Reproductive Health
- Women's Health
Locations
Please note: Not all physicians schedule patients at each listed location.
Credentials
Education
- Fellowship - Maternal and Fetal Medicine
- Presbyterian Medical Center/University of Pennsylvania, Philadelphia, PA
1/1/1984 - 1/1/1986 - Residency - Obstetrics & Gynecology
- Presbyterian Medical Center/University of Pennsylvania, Philadelphia, PA
1/1/1980 - 1/1/1984 - Doctor of Medicine (MD)
- Weill Medical College of Cornell University, New York, NY, United States
9/1/1976 - 5/1/1980
Certifications
-
American Heart Association National Center
1/1/2011 -
American Board of Obstetrics & Gynecology-Maternal & Fetal Medicine
12/1/1988 -
American Board of Obstetrics & Gynecology
12/11/1987
Academics and research
I have been Principal Investigator for the PCORI funded DECIDE trial: Comparative Effectiveness of Insulin versus Metformin for the Treatment of Gestational Diabetes. I have been Co-principal investigator, National Maternal-Fetal Medicine Units Network – NICHD and Investigator for the nation's largest vaginal birth after cesarean study. Additionally I am editor in chief for Gabbe: Obstetrics Normal and Problem Pregnancies, 9th Edition.
Research interests
- Gestational Diabetes
- Vaginal Birth after Cesarean
Academic information
- Department:
- OB/GYN
- Division:
- Maternal-Fetal Medicine
More about my research
News and media
My news coverage
- Ohio State receives $4.5 million to help monitor effects of medications during pregnancy
- Ohio State receives $12 million to study effectiveness of therapies for gestational diabetes
- Study finds racial, ethnic disparities in rate of medical intervention among earliest premature babies
- New Community Care Coach Brings Health Care Team to Patients
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 11/3/2025, Dr. Landon has reported no relationships with companies or entities.