Dr. Marielle Williamson-ReaDO
Family Medicine
at Direct Care Physicians of Pittsburgh — Allison Park, PA
About
Dr. Marielle Williamson-Rea is a family physician with board certifications in both Family Medicine and Lifestyle Medicine. Originally from Edinboro, Pennsylvania, she earned her undergraduate degree from Indiana University of Pennsylvania Cook Honors College before completing her Doctor of Osteopathic Medicine degree at Lake Erie College of Osteopathic Medicine at Seton Hill. She completed her residency in the UPMC Shadyside Family Medicine Residency Program in Pittsburgh.
Dr. Williamson-Rea integrates evidence-based primary care with lifestyle interventions targeting nutrition, movement, restorative sleep, stress management, and social connection. She places particular value on the relationship between physical and mental health and makes accessible follow-up a priority in her practice. She serves as Adjunct Faculty at the Duquesne College of Osteopathic Medicine and pursues ongoing professional education as a central part of her clinical identity. Outside of medicine, she trains regularly through running, cycling, and strength work, and enjoys cooking, traveling, and hiking with her husband Jacob and their two dogs, Ave and Freja. Dr. Williamson-Rea recently opened her Wexford location and welcomes prospective patients for meet and greet appointments.
Education & Training
Undergraduate
Indiana University of Pennsylvania Cook Honors College
Medical School
Lake Erie College of Osteopathic Medicine at Seton Hill
Residency
Family Medicine, UPMC Shadyside Family Medicine Residency Program, Pittsburgh
Additional Training
Adjunct Faculty, Duquesne College of Osteopathic Medicine
Certifications
Conditions Treated
Who is Dr. Williamson-Rea right for?
Dr. Williamson-Rea is a strong fit for patients who want a physician who treats the whole person. Adults managing lifestyle-related chronic conditions like pre-diabetes, hypertension, or diabetes benefit from her dual focus on medicine and behavioral health. She works well with patients who value mental and physical health as interconnected. Patients in the Wexford area looking for a new DPC physician can schedule a meet and greet with her now.
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Frequently Asked Questions
Dr. Williamson-Rea specializes in family medicine, lifestyle medicine, and preventive medicine. She treats both acute and chronic conditions and integrates evidence-based lifestyle interventions into her primary care practice.
Yes. Dr. Williamson-Rea recently opened her Wexford location and welcomes new patients. She offers meet and greet appointments for prospective patients who want to learn more before enrolling.
Dr. Williamson-Rea holds board certification in Lifestyle Medicine from the American College of Lifestyle Medicine. She combines standard primary care with targeted interventions in nutrition, movement, restorative sleep, stress management, social connections, and substance avoidance to prevent and treat chronic disease.
Dr. Williamson-Rea earned her DO degree from Lake Erie College of Osteopathic Medicine at Seton Hill and completed her family medicine residency at UPMC Shadyside in Pittsburgh. She also serves as Adjunct Faculty at the Duquesne College of Osteopathic Medicine.
Yes. Dr. Williamson-Rea treats mental health as part of comprehensive primary care. She views physical and mental health as closely linked and prioritizes both in her patient care approach.
She treats a broad range of acute and chronic conditions, including pre-diabetes, diabetes, hypertension, and lifestyle-related chronic disease. She also manages mental health concerns within her primary care practice.
Yes. Dr. Williamson-Rea serves as Adjunct Faculty at the Duquesne College of Osteopathic Medicine. She treats ongoing education as a core part of her professional practice, both as a teacher and a learner.
Doctor profile last updated March 22, 2026