Doctor examining patient's back pain with hands while patient holds lower back in discomfort

SCHEDULING MADE EASY

Choose your provider, pick your time, and book online. No back-and-forth needed.

To book an appointment with your preferred provider, please visit their profile on our website and book directly at the link found under their photo!

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Proliance Surgery Center at Valley

Named Best Ambulatory Surgery Center by U.S. News for 2025

Proliance Surgery Center at Valley has been named one of the 2025 Best Ambulatory Surgery Centers fororthopedic and spine care by U.S. News & World Report. Out of thousands of facilities reviewed nationwide, only aselect few earned this honor — Proliance Surgery Center at Valley among them.

a set of keys

POA: Named Top Orthopedic & Surgical Care Provider in WA!

We are excited to announce that we have been named one of the top orthopedic and surgical care providers in Washington by Castle Connolly for 2025!

a group of surgeons performing surgery


Proliance Surgery Center at Valley

Recognized as Top 20 ASC Performing Most Knee Replacements!

POA is among the top 20 ASCs that performed the most total knee replacement procedures in U.S. in 2022, click through to view the entire list!

Introducing Our Newest Physician Assistants

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Terrianna Emerson, PA-C

Terrianna Emerson, PA-C, joined Proliance Orthopedic Associates in 2026 and brings a depth of expertise to our team. Terrianna currently works in both our Renton and Covington clinic locations.

To book an appointment with Terrianna, click the link below!

Book An Appointment
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Gian Kho, PA-C

Gian Kho, PA-C is an orthopedic Physician Assistant working with the sports medicine team, where he is dedicated to helping patients recover from injury and return to active, healthy lifestyles.

To book an appointment with Gian, click the link below!

Book An Appointment

UNMATCHED
SPECIALIZED
CARE

Find the care you need, when and where you need it, with the region's most comprehensive orthopedic care.

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Relief for Chronic Back Pain



At Proliance Orthopedic Associates, we’re proud to provide compassionate, patient-centered orthopedic care that helps you get back to doing what you love. In this video, Dr. Gregorio shares how our team combines advanced techniques, surgical precision, and personalized treatment to restore mobility and improve quality of life.
Doctor explaining spine model to female patient in a bright office with window blinds and greenery outside.

Overcoming Debilitating Neck Pain



When pain limits your movement, every step can feel uncertain. In this video, Alicia shares how the specialists at Proliance Orthopedic Associates helped her return to an active, fulfilling life through expert orthopedic care and genuine compassion.
Orthopedic doctor in scrubs consulting a seated patient in a modern clinic room with Proliance logo visible.

A Surgery Center with Care Built Around You



At our Ambulatory Surgery Center (ASC), advanced technology meets personalized care. Our board-certified surgeons and dedicated staff deliver world-class orthopedic procedures in a comfortable, patient-focused environment — helping you heal faster and return to the activities you love.

HELPFUL RESOURCES

PATIENT SUCCESS STORIES

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Linda Green discusses her anterior hip replacement and her experience with Proliance Orthopedic Associates’, Dr. Susan Cero.

- Linda

The surgeries I received in 2016 were a major shoulder surgery from Dr. Arntz in April and a total knee replacement in June by Dr. Merritt. I was referred by Dr. David Sweiger who took the time and interest to try to help me. So glad I switched...

- Jay S.

// Andrew L. Merritt, M.D.

I was really taken back by Dr. Thompson because he did everything in a compassionate and quick manor. I had a ruptured disc in my back; I was in a lot of pain and could hardly walk. Dr. Thompson had quickly ordered an MRI on my back and then did...

- Beverly W.

// Jason H. Thompson, M.D.

In June 2010, I had surgery on my lower back. Until then, I was in serious and debilitating constant pain and had been for many years. I was on large dosages of pain meds that only took the edge off of the pain I was experiencing. The meds were...

- Lynne

// Jason H. Thompson, M.D.

January, 2014Dear Dr. Barrett,I am so thankful for your talented surgical skills. My life has changed in so many wonderful ways since June 17th. The following are some of those ways: I can go for walks with my husband. I can actually enjoy...

- Ann

I had surgery on February 3 of this year. I was terrified and I had not taken care of my ankle for three months prior to surgery. Dr. Novak was really understanding and listened to my problems. I am heavy and he did not mention that but gave me a...

- Katlyn B.

// Erik J. Novak, M.D., Ph.D.

I recently dislocated my shoulder twice playing hockey and decided it was time to fix the problem before it got any worse. I had an unreal experience at Proliance Orthopedic Associates, all real nice people. Everyone helped me with getting ready...

- Tyler C.

// Craig T. Arntz, M.D.

MRI revealed Ruptured disk L5-S1, likely from running road races so many years and all the training with it. Intense sciatic nerve issues steadily increasing with relentless pain in both legs. My ability to play golf or even walk was difficult or...

- Brian V.

// Jason H. Thompson, M.D.

Thanks from a Mountain ClimberDr. Barrett performed total knee replacements on both of my knees. They are not like original equipment, but they do work well enough for me to do this!

- Placeholder

Getting a hip replaced is no easy deal, but having it done by Dr. Susan Cero of Proliance Orthopedic Associates made it go so smoothly and it was an overall great experience. From the first appointment, to the pre-op, to the surgery, to the...

- Heather