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Mary is a board-certified pediatrician and integrative medicine specialist who practices in Portland, Oregon. She has worked for several clinics in the Portland area, as well as the Multnomah County Health Department. Her specialties include chronic disorders, such as asthma and allergies, care for premature or critically ill newborns and infants, and neurodevelopmental and behavioral issues.

She received her BS in Biology / Biological Sciences from UC Irvine, earned her DO from the Western University of Health Sciences, and completed her residency at the University of California, San Francisco.

Board certifications

Mary is:

  • Certified by the American Board of Pediatrics (ABP)
  • Certified by the American Board of Integrative Medicine (ABOIM)

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Dr. Mary Olson's headshot.

Medical Reviewer, Pediatrician

Mary Olson, DO

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Latest from Mary Olson

A 7-month-old baby sitting up, smiling, and playing with toys. Development & Milestones

Your 7-Month-Old Baby: Milestones and Development

Medically Reviewed by: Mary Olson, DO

A baby who was started on the baby-led weaning approach sitting in a high chair, eating finger foods. Baby Feeding

Baby-Led Weaning: How to Introduce Solid Foods to Your Baby

Medically Reviewed by: Mary Olson, DO

A baby between two stuffed animals, crying because he is gassy. Newborn Body Care

Infant Gas: What Causes It and How to Help Your Baby

Medically Reviewed by: Mary Olson, DO

Baby sleeping quietly while hugging a teddy bear. Sleep

When Do Babies Start Sleeping Through the Night?

Medically Reviewed by: Mary Olson, DO

Young baby lying down and crying. Sleep

“Cry-It-Out” Sleep Training: Is It Right for Your Baby?

Medically Reviewed by: Mary Olson, DO

Baby girl lying down and crying during the "witching hour." Development & Milestones

Decoding the Baby “Witching Hour”: What’s Behind the Evening Fuss?

Medically Reviewed by: Mary Olson, DO

Young baby with light-colored eyes. Newborn Body Care

When Do Babies’ Eyes Change Color?

Medically Reviewed by: Mary Olson, DO

Small toddler picking up blocks, demonstrating the pincer grasp. Development & Milestones

Pincer Grasp: What Is It and When Will Your Baby Learn It?

Medically Reviewed by: Mary Olson, DO

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