Dr. Mary K. Len, MD | Olympia, WA | Gastroenterology

.about .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Dr. Mary Len is a gastroenterologist and pediatrician who brings over four decades of medical expertise to her practice. She earned her medical degree from Chicago Medical School at Rosalind Franklin University of Medicine and Science, building a comprehensive foundation in both adult digestive health and pediatric care. With 41 years of clinical experience, Dr. Len offers bilingual care in Spanish and Korean, ensuring accessible communication for diverse patient populations.

Dr. Len practices at multiple respected healthcare facilities throughout Washington, including Seattle Children's Hospital, Providence Saint Peter Hospital, Multicare Capital Medical Center, and Saint Francis Hospital, with locations in both Seattle and Olympia. She specializes in treating digestive conditions such as constipation, abdominal pain, and swallowing difficulties. Her procedural expertise includes performing diagnostic pathology tests, kidney transplant biopsies, and nerve biopsies to help identify …and address complex medical conditions. Patients rate Dr. Len 2.1 out of 5 stars on average.

Read More Read less

AI-generated from data on this provider profile.

accepting new patients
2.1

7 Ratings
41 years of experience
speaks Spanish, Korean
Chicago Medical School At Rosalind Franklin University-Medicine & Sciences
6 written reviews
2 specialties
2 areas of expertise
2 board certifications
4 hospital affiliations
4 office locations
Female

7 ratings & reviews

Sort:

Showing 1 to 6 of 6 reviews

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

If I could give this provider 0 stars I would. She should not be working with children. She doesn't seem to have compassion or empathy for them at all. We saw her once and had such a terrible experience we found another pediatric gastroenterologist and never saw Dr. Len again. There is a reason why you can get an appointment with her as a new patient sooner than other providers in the same clinic or even other clinics. If you are in Olympia, she isn't worth the convenience. Go to Tacoma, Seattle, or the Mary Bridge gastroenterology clinic in Olympia. There are so many better providers who are worth the wait.

May 10th, 2024

1 person found this helpful

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Dr. Len made my daughter and I hanging. She was very aloof and incompetent

September 15th, 2020

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Dr. Len was very cold, impersonal, out of touch and failed to respond to any of my messages. I called her office and left multiple messages. Her office staff said she’d given Dr. Len my messages. She went onto day Dr. Len often doesn’t respond to messages or correspondence. My child suffers and Dr. Len does not care. Poor provider

February 6th, 2019

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Did not relate well to me or with my son. It was very difficult to get Dr. Len or her staff to call us back.

December 14th, 2018

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Dr Len is the best GI Dr around. Saved my daughters life. She is very smart and will get to the bottom of your child’s issues with a calm and collected demeanor.

September 18th, 2018

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Find another doctor. This is not the doctor you’re looking for.

October 11th, 2017

1 person found this helpful

Seattle Childrens Olympia Clinic

615 Lilly Rd NE Ste 140Olympia, WA 98506

Tel: (360) 459-5009

Mon8:30 am - 5:00 pm

Tue8:30 am - 5:00 pm

Wed8:30 am - 5:00 pm

Thu8:30 am - 5:00 pm

Fri8:30 am - 5:00 pm

SatClosed

SunClosed

Seattle Childrens Hospital

4800 Sand Point Way NeSeattle, WA 98105

Tel: (206) 987-2056

Multicare Capital Medical Center

3900 Capital Mall Dr SwOlympia, WA 98502

Tel: (360) 754-5858

Providence Saint Peter Hospital

413 Lilly Rd NeOlympia, WA 98506

Tel: (360) 491-9480


Dr. Mary Katherine Len, MD	Ji Soo Choi, APRN	Dr. James Brent Davis, MD	Dr. Hatai Kraushaar, MD
Gastroenterology	Gastroenterology	Pediatrics	Pediatrics
Accepts New Patients	Accepts New Patients	Accepts New Patients
2.1 (7 Ratings)	0 (0 Ratings)	0 (0 Ratings)	0 (0 Ratings)
41 Years of Experience		16 Years of Experience	14 Years of Experience
No Virtual Visit Option	Virtual Visit Available	No Virtual Visit Option	No Virtual Visit Option
Speaks Spanish, Korean	Speaks English
Olympia , WA	SACRAMENTO , CA	Gig Harbor , WA	Baltimore , MD
Med School: Chicago Medical School At Rosalind Franklin University-Medicine & Sciences	Med School: New York University	Med School: Spencer Fox Eccles School Of Medicine At The University Of Utah	Med School: BEN GURION UNIVERSITY OF THE NEGEV
Current Profile	View Profile	View Profile	View Profile

Search for your insurance and plan

Accepts Medicare
Accepts Medicaid

Pediatric Gastroenterology
Pediatrics

MEDICAL LICENSE

Medical Doctor, Washington, 2026, Active

EDUCATION & TRAINING

Medical School

Chicago Medical School At Rosalind Franklin University-Medicine & SciencesGraduated in 1985

Dr. Lisa Ann Lee, MD
Adolescent Medicine
30 Years Exp | Olympia, WA
(5)
Dr. Nathan Scott Teague, MD
Public Health & General Preventive Medicine
20 Years Exp | Tacoma, WA
(0)
Dr. Michael Wayne Mcclellan, MD
Medical Genetics
40 Years Exp | Tacoma, WA
(0)
Dr. Michael Thomas Long, MD
Pediatrics
15 Years Exp | Tacoma, WA
(0)
Dr. Stephanie Rose Srur, DO
Pediatrics
12 Years Exp | Olympia, WA
(0)
Dr. Niharika Penington, MD
Pediatrics
12 Years Exp | Covington, WA
(0)
Dr. Caitlin Eliza Worthley Toffler, MD
Pediatrics
9 Years Exp | Tacoma, WA
(0)
Dr. Daniel Jacob Tolson, MD
Pediatrics
23 Years Exp | Tacoma, WA
(1)
Dr. Amy Beth Connors
Pediatrics
31 Years Exp | Tacoma, WA
(0)
Dr. Jonathan Douglas Topham, MD
Pediatrics
13 Years Exp | Tacoma, WA
(0)

How can I make an appointment with Dr. Mary Len?: You can find contact information for Dr. Mary Len here on Vitals.
Which hospitals is Dr. Mary Len affiliated with?: Dr. Mary Len is affiliated with Seattle Childrens Hospital, Providence Saint Peter Hospital, Multicare Capital Medical Center, and Saint Francis Hospital.
Does Dr. Mary Len accept my insurance?: You can see the insurance plans that Dr. Mary Len accepts on their Vitals profile.
Is Dr. Mary Len accepting new patients?: Dr. Mary Len is accepting new patients on Vitals. View Dr. Mary Len's profile on Vitals to make an appointment.
Where is Dr. Mary Len's office located?: Dr. Mary Len's office is located at 615 Lilly Rd NE Ste 140, Olympia, WA, 98506.

Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.

Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.

Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.

Copyright © 2026 Vitals Consumer Services, LLC. US Patent No. 8, 694, 441. All Rights Reserved.
As more fully set forth in this website's terms of use . (1) nothing contained on or offered by or through this website should be construed as medical advice and should not be relied upon for medical diagnosis or treatment. Vitals Consumer Services, LLC ("Vitals"). the provider of this website, does not recommend or endorse any particular healthcare provider whose information or ratings appear on this website; and (2) Vitals has granted you a limited license to access and use this website for your own noncommercial use. You are not permitted to copy, reproduce, distribute, transmit, mirror, frame, scrape, extract, wrap, create derivative works of, reverse engineer, decompile or disassemble any part or aspect of this website.