Megan L O'Brien, DNP

Instructor in Surgery

Gerald T. O'Connor, PhD, ScD

Emeritus Professor of Medicine
Emeritus Professor of Community and Family Medicine
Emeritus Professor of The Dartmouth Institute

Professional Interests
Dr. O'Connor's primary interest is in the use of epidemiologic techniques to improve clinical and patient decision-making and to accelerate the improvement of clinical care.

He is the Principal Investigator of the National Quality Program of ...

Mary E. O'Connor, MD, MPH

Clinical Professor of Pediatrics

Carol Lynn O'Dea, MD

Assistant Professor of Pediatrics
Assistant Professor of Medical Education

Joseph F. O'Donnell, MD

Emeritus Professor of Medicine
Emeritus Professor of Psychiatry

Professional Interests
Medical Education
Humanities in Medicine
Professional development
Prevention
Communication
Palliative Care

Timothy R O'Dowd, MD

Assistant Professor of Medicine

Jennifer E. O'Flaherty, MD, MPH

Associate Professor of Anesthesiology

James O'Malley, MS, PhD

Professor of The Dartmouth Institute
Professor of Biomedical Data Science

Professional Interests
My research interests span both statistical methodology and various areas of medicine and health care. My prior and ongoing contributions to statistical methodology involve statistical inference for social networks, multivariate hierarchical models, ...

Kevin J O'Regan, PA, PA

Instructor in Medicine

Daniel J. O'Rourke, MD

Associate Professor of Medicine

Meghan T O'Rourke, PA

Instructor in Neurology

Brian P O'Sullivan, MD

Professor of Pediatrics

Professional Interests
Cystic Fibrosis
Asthma
Cough
Congenital lung malformations

George A. O'Toole Jr, PhD

Professor of Microbiology and Immunology

Professional Interests
The main focus of the O'Toole laboratory is the study of complex surface-attached bacterial communities known as biofilms. Biofilms can form on a wide variety of surfaces including catheter lines, surgical implants, contact lenses, the lungs of patients ...

Joshua J. Obar, PhD

Associate Professor of Microbiology and Immunology

Professional Interests
The goal of our laboratory is to understand the immune response against microbial infections. The immune system is critical in protecting the host against microbial infections, but an uncontrolled immune response can also be detrimental to the host. ...

Nicole H Odom, MD

Assistant Professor of Neurology

Jessica M Oehlke, MD

Assistant Professor of Psychiatry

Laurant V Officer, DO

Assistant Professor of Community and Family Medicine

Samuel J Ogden, MD

Clinical Assistant Professor of Pediatrics

Vivian Ojeda, MD

Assistant Professor of Clinical Obstetrics and Gynecology

Emily Oleson, MD

Clinical Assistant Professor of Community and Family Medicine

Theresa M Oliveira, MD

Clinical Assistant Professor of Pediatrics

Brant J. Oliver, MPH, PhD

Associate Professor of Community and Family Medicine
Associate Professor of The Dartmouth Institute
Associate Professor of Psychiatry

Ardis L. Olson, MD

Emeritus Professor of Pediatrics
Emeritus Professor of Community and Family Medicine

Professional Interests
Cancer Prevention ( HPV vaccination, skin cancer)
Adolescent health risk screening
Community Carbon Monoxide Exposure
Smoking cessation in pregnancy
Adolescent and Maternal Depression

Judith E Olson, MD

Instructor in Psychiatry

Colleen M Olson, MS

Instructor in Anesthesiology

Tracy Onega, PhD

Adjunct Professor of Biomedical Data Science
Adjunct Professor of Epidemiology
Adjunct Professor of The Dartmouth Institute

Resmiye Oral, MD

Professor of Pediatrics

Professional Interests
All aspects of child abuse and neglect
Adverse childhood experiences
Trauma Informed Care
Systems building in child protection
International train the trainers activities on child abuse systems building

Jennifer Orbeso, DNP

Assistant Professor of Pediatrics

Esteban Orellana, PhD

Assistant Professor of Molecular and Systems Biology

Alexander R Orem, MD, MS

Assistant Professor of Orthopaedics

Amy L. Orff Martel, MD

Clinical Assistant Professor of Community and Family Medicine

Thomas Ormiston, MD

Clinical Associate Professor of Medicine

Deborah L. Ornstein, MD

Professor of Medicine
Professor of Medicine

Alexandra R Ortengren, MD

Instructor in Medicine

Robin B. Osborne, PhD

Clinical Assistant Professor of Community and Family Medicine

Mary M Oseid, BS

Senior Lecturer in The Dartmouth Institute

Toby Ostrov, PA-C

Clinical Instructor in Community and Family Medicine

Thomas E. Oxman, MD

Emeritus Professor of Psychiatry
Emeritus Professor of Community and Family Medicine

Professional Interests
Dr. Oxman’s interests are in preparing primary care clinicians to manage patients with depression or posttraumatic stress disorder. He has clinical expertise in the diagnosis and management of dementing, depressive, and psychotic disorders in ...