Ashley Jerath Tatum, MD

Ashley Tatum

**Dr. Tatum is retiring in January 2024. Please read her farewell letter. Our practice greatly appreciates Dr. Tatum’s service to Northwest Asthma & Allergy Center and wishes her all the best. If you are a patient of Dr. Tatum, our staff can help you find another provider to maintain your excellent medical care.

Dr. Tatum is board-certified in Allergy/Immunology and Internal Medicine. She is a multiple graduate of Northwestern University, holding a medical degree as well as Biophysics and Biochemistry degrees from the institution. She then completed her residency at Northwestern’s Department of Internal Medicine, followed by fellowship training in Allergy and Immunology at Northwestern Memorial Hospital and Children’s Memorial Hospital in Chicago.

After years of training and allergy practice in the Chicago area, she decided to head back to the Pacific Northwest, where she had grown up. Dr. Tatum joined Northwest Asthma & Allergy Center in 2001. She also holds a clinical faculty position in the Department of Medicine at the University of Washington. She simultaneously pursues her research interests as a member of the Board for the Seattle Allergy & Asthma Research Institute (previously ASTHMA Clinical Research Center.)

She lives on the Eastside with her husband and two sons. In her free time, she enjoys art history, boating, and volunteer work in her sons’ schools.

Dr. Tatum sees patients in our Renton and Seattle offices.


  • Medical School: Northwestern University
  • Residency: Internal Medicine, Northwestern University
  • Fellowship: Northwestern Memorial Hospital and Children’s Memorial Hospital

Awards and Recognition

Top Doctor by Seattle Magazine and Seattle Met

What Patients Say

“I am so grateful for Dr. Tatum‘s outstanding care. She listens well and changes treatment to manage the asthma exacerbations I have had. She has made a big difference in my health and my life. Thanks for the great care you all provide.”

~Patricia H., Seattle

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