Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

County · Washington

Outpatient surgery centers in King County, WA

54 outpatient surgery centers certified by Medicare.

An outpatient surgery center (ambulatory surgical center, ASC) does surgery and procedures that do not need a hospital stay: patients usually go home the same day. Common examples are cataract surgery, colonoscopy and other endoscopy, joint and hand surgery, and pain injections. The centers listed here are certified by Medicare. They are not emergency rooms.

By kind of surgery

Number of centers here certified by Medicare for each kind of surgery (one center can do several).

  • Eye surgery (ophthalmology)15
  • Endoscopy (for example colonoscopy)11
  • Orthopedic surgery (bones and joints)11
  • Pain management procedures8
  • Plastic surgery15
  • Foot surgery (podiatry)7
  • Ear, nose and throat surgery13
  • Gynecologic surgery (OB/GYN)4
  • Dental and oral surgery1
  • Other surgery16

By city

All outpatient surgery centers in King County

Bellevue

Burien

Enumclaw

Federal Way

Issaquah

Kirkland

Redmond

Renton

Seattle

More care in King County

Common questions

How many outpatient surgery centers are in King County?

Medicare (CMS) lists 54 outpatient surgery centers in King County, Washington.

Which surgery centers in King County do eye surgery such as cataract surgery?

15 of the 54 outpatient surgery centers are certified by Medicare for it: Evergreen Eye Center, Evergreen Eye Center PLLC, Evergreen Eye Surgery Center, First Hill Surgery Center, Northwest Eye Surgeons, Northwest Eye Surgeons, Northwest Laser & Surgery Center, Overlake Surgery Center LLC, Pacific Cataract & Laser Institute, Proliance Surgery Center at Valley, Seattle Surgery Center and Specialty Eyecare Center, and 3 more listed below. Ask the center whether it does your specific procedure.

Which surgery centers in King County do endoscopy such as colonoscopy?

11 of the 54 outpatient surgery centers are certified by Medicare for it: Digestive Health Network Endoscopy Center, Eastside Endoscopy Center - Issaquah, Eastside Endoscopy Center, PLLC, Eastside Medical Group, GH Evergreen Endoscopy Center Sub LLC, GH Fremont Endoscopy Center SUB LLC, Overlake Surgery Center LLC, Pacmed Clinics, Polyclinic Inc, Redmond Ambulatory Surgery Center and Virginia Mason Medical Center - Bellevue Asc. Ask the center whether it does your specific procedure.

Which surgery centers in King County do orthopedic (bone and joint) surgery?

11 of the 54 outpatient surgery centers are certified by Medicare for it: Bellevue Surgery Center, First Hill Surgery Center, Overlake Surgery Center LLC, Proliance Eastside Surgery Center, Proliance Southwest Seattle Surgery Center, Proliance Surgery Center at Valley, Seattle Hand Surgery, Seattle Orthopedic Surgery Center, Seattle Spine Institute, Seattle Surgery Center and Virginia Mason Medical Center - Bellevue Asc. Ask the center whether it does your specific procedure.

Do surgery centers have Medicare star ratings?

No. Medicare does not rate outpatient surgery centers with stars. Each center’s page shows the official Medicare quality measures and patient survey results instead, next to the national values.

Source: Centers for Medicare & Medicaid Services (CMS), “Provider of Services File - Internet Quality Improvement and Evaluation System”, data updated 2026-10-16, retrieved 2026-11-11. In a medical emergency, call 911. About outpatient surgery centers and their quality measures