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Timo W. Hakkarainen, MD

Patient Ratings

4.8 / 5 (Based on 70 Ratings)


General Surgery

Call 425-899-5500

Timo W. Hakkarainen, MD is accepting new patients.

Telemedicine Visits Available

Conditions Treated

adrenal nodule, appendicitis, appendix, biliary colic, colon cancer, diverticulitis, gallbladder disease, gallstones, gastroesophageal reflux disease, GERD, Graves' disease, hernia, hiatal hernia, hyperparathyroidism, hyperthyroidism, inguinal hernia, lipoma, overactive thyroid, pheochromocytoma, reflux, skin cancer, thyroid cancer, thyroid nodules, umbilical hernia, adrenal cancer, and ventral hernia

Procedures Performed

appendectomy, appendix removal, hiatal hernia repair, hidden scar thyroidectomy, inguinal hernia repair, laparoscopic adrenalectomy, laparoscopic cholecystectomy, 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 adrenalectomy, minimally Invasive parathyroidectomy, minimally invasive thyroidectomy, modified radical neck dissection, neck dissection, Nissen fundoplication, robot assisted BABA thyroidectomy, sentinel lymph node biopsy, skin cancer excision, skin cancer removal, thyroidectomy, Toupet fundoplication, transoral thyroidectomy, umbilical hernia repair, ventral hernia repair, colon surgery, colorectal surgery, general surgery, hernia repair, colon cancer surgery, and gallbladder removal

Contact Information

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







Interpretation Services Available

Honors, Awards, etc.

2022 Seattle Met "Top Docs"

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.


April 20, 2022
Excellent doctor.
April 18, 2022
Very good -
February 02, 2022
This was a emergency surgery.
November 03, 2021
Very good.
October 29, 2021
Comments were forthright and timely.
October 13, 2021
Provider was dismissive of the referring providers concerns and made me feel uncomfortable in the appt. He presented as inconvenienced by the appt.
September 08, 2021
Everyone was wonderful.
July 12, 2021
Timo rocks! He is super smart, kind & seems to really care.
April 22, 2021