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Timo W. Hakkarainen, MD

Patient Ratings

4.7 / 5 (Based on 50 Ratings)


General Surgery

Call 425-899-5500

Timo W. Hakkarainen, MD is accepting new patients.

Telemedicine Visits Available

Procedures Performed

appendectomy, hidden scar thyroidectomy, laparoscopic adrenalectomy, laparoscopic colectomy, laparoscopic gall bladder removal, laparoscopic inguinal hernia repair, laparoscopic splenectomy, laparoscopic umbilical hernia repair, laparoscopic ventral hernia repair, lipoma removal, lymph node biopsy, minimally Invasive parathyroidectomy, minimally invasive thyroidectomy, neck dissection, sentinel lymph node biopsy, skin cancer excision, skin cancer removal, thyroidectomy, GERD anti-reflux surgery, and hernia repair

Contact Information

  • Office: 425-899-5500
  • Fax: 425-899-5521







Interpretation Services Available

Board Certification

Board Certified in General Surgery


Dr. Timo Hakkarainen has advanced fellowship training in both endocrine and minimally invasive surgery from Mount Sinai and Beth Israel hospitals in New York.
As a general surgeon, Dr. Hakkarainen specializes in minimally invasive surgery and laparoscopic surgery for all manner of hernias and gallbladder disease. He also specializes in advanced laparoscopic surgery of the colon, small intestine, and stomach including advanced training in minimally invasive surgery for hiatal hernias and chronic acid reflux.
As an endocrine surgeon, Dr. Hakkarainen specializes in the treatment of all manner of thyroid, parathyroid, and adrenal gland disease. He specializes in minimally invasive surgery for thyroid cancer, benign thyroid disease, parathyroid disease, and both benign and malignant adrenal gland disease. He is experienced in advanced endoscopic and robot-assisted approaches including remote-access (hidden scar) procedures for select patients with thyroid disease. These approaches make it possible to avoid a visible neck incision for some patients.

Clinical Expertise

Minimally invasive hernia surgery
Gallbladder surgery
Colon cancer
Hiatal Hernia
Gastroesophageal Reflux Disease
Minimally invasive thyroid surgery
Thyroid nodules
Thyroid cancer
Grave's Disease
Hashimoto's Disease
Parathyroid Carcinoma
Adrenal Nodules
Adrenal Cancer

Medical School

Mount Sinai School of Medicine | New York


University of Washington | Seattle, WA


Icahn School of Medicine at Mount Sinai | New York

Personal Information

When not working, I enjoy technical SCUBA diving in the Puget Sound and Lake Washington, alpine climbing (especially on Mount Rainier), woodworking, wheel-thrown pottery, reading history and just about any outdoor activity.
My wife, three kids and I enjoy camping regularly. I love helping expose them to the natural world, develop new skills, and helping them develop a passion for the outdoors and confidence in their ability to try things.


July 12, 2021
Timo rocks! He is super smart, kind & seems to really care.
April 22, 2021
March 05, 2021
Extremely thorough in reviewing medical hx & informing me of issues and treatment.
January 28, 2021
Provider disregarded symptoms.
September 10, 2020
Answered all my questions and addressed my concerns.
August 10, 2020
Great experience we resolved my gastro intestinal pain Dr. Timo is very informative and patient with my concerns.
July 16, 2020
Doctor was very good of explaining procedure an asking if I had questions.