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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I am so grateful to you for the surgery you did on my right shoulder!  I couldn’t be happier!  Thank you to you and Roxanne for all you have done to get me through my first surgery.  Everything was exactly as the portfolio you gave me said...

- Y.R.

// Craig T. Arntz, M.D.

I first met Dr. Howlett in the ER when I broke my shoulder, he was the on-call doctor and I’m very glad that he was. He did surgery on my shoulder and was extremely thorough in explaining the injury as well as what needed to be done to fix it....

- Betty M.

// John Howlett, M.D.

I had total hip replacement April 3, 2012. I hit the slopes for the first time today since surgery. What a difference this new hip makes! Dr. William Barrett you are the best!!!!!!

- Diana

Before surgery, I was limping -- I was unable to lift my left foot to walk properly or ride my motorcycle. Since surgery, I can lift my left foot, walk properly and shift gears on my Harley. Dr. Clark showed me clearly (via x-rays), what and...

- Mark

I’ve been told I have an “old back” and it leaves me with a very gimpy left leg. But before I resort to the inevitable surgery, I have had two epidural steroid injections done by Dr. Chilczuk. My first injection was harder,...

- Lori

As someone from out of town, I emailed and got a fast response and set up an appointment. My back was so bad I could hardly walk four steps. Dr. Chilczuk had me x-rayed, and he knew and cared about my pain. I had to run the gamut before I could...

- Bill

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

I had a total right hip replacement on the 10th of August. From my first appointment with Jana Flener, to being discharged from Valley Medical I was TOTALLY impressed and happy with everything. Proliance Orthopedics is just super. They treated me...

- Mary M.

To: Valley Orthopedic Associates Care of: Dr. Cero, Joint replacement is a serious decision in one’s life. But when you consider the pain of bone on bone and the quality of life you give up every day you put this decision off you will never...

- Pat

I’m 75-year-old patient of Dr. Craig T. Arntz. On April 16, 2013, Dr. Arntz repaired my right rotator cuff. Through that procedure, along with his wonderful associates and therapy that he recommended, my shoulder has returned to full range of...

- Jessie

// Craig T. Arntz, M.D.