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 Providers

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Matthew Lyons, MD

Matthew Lyons, joins Proliance Orthopedic Associates in July, 2026 and brings a depth of expertise to our Shoulder and Sports Medicine teams. Dr. Lyons currently works in both our Renton and Maple Valley clinic locations.

To book an appointment with Dr. Lyons, click the link below!

Book An Appointment
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Tim Stensby, PT

Tim provides care for a wide range of conditions and has experience working with student athletes, including enhancing running techniques for track and field participants.

To book an appointment with Tim, 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.

Doctor in suit explaining spine model to patient inside bright medical office with Proliance logo

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.
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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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We spend our summer months traveling so I put off going to the doctor until June of 2013 when I was having so much pain that we had to cut our travel plans short and had to return home. I was told that I needed a total hip replacement, but I...

- Joy

// Andrew L. Merritt, M.D.

I can’t say enough good things about Dr. Howe and his staff. I came to Dr. Howe after being told by two other surgeons that nothing was wrong with my back, and I just had a bulging disk and after injections, it would heal itself. I did...

- Samantha

// Chris R. Howe, M.D.

Firstly, I can’t express in writing or words my gratitude and thanks for Dr. Andrew Merritt. Dr. Merritt’s surgical skills and genuine / sincere care demonstrated for his patients’ orthopedic wants, needs and desires is quite remarkable....

- Michael Q

// Andrew L. Merritt, M.D.

I came to see Dr. Shrivastava at Proliance Orthopedic Associates because I broke my wrist.  It was the first time that I had broken anything.  From my first visit here with Zach PA-C, till my last, everyone made me feel comfortable and at...

- Betty

// Niket Shrivastava, M.D.

Today marks my one week post op anniversary for my left hip surgery! I am amazed my pain is gone only tenderness in incision site.  I’m an old 70 year retired R.N. and recognize an outstanding medical office-which I found at your office from...

- Sallee

“I was given a referral for Dr. Arntz years ago when I injured my left shoulder. He was a pleasant doctor and person. He suggested shoulder repair at that time. And also told me that with my condition, I would need a complete shoulder...

- Denise

// Craig T. Arntz, M.D.

Dr. BarrettAs you can see I didn’t get a hip replacement just to play golf. In 2011, I’ve climbed over 44 trees, starting in May 2011, three months after surgery. This activity is all possible because of you Dr. Barrett and staff....

- Joel Stefanski, Mindy, and family

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.

My first injection was harder, longer, and much more painful than I anticipated. Apparently, I have a humungous bone spur and Dr. Chilczuk had to figure out the best over, under, or around route to the nerve root. It worked! I had a GREAT...

- Lori

Dear Proliance Orthopedic AssociatesI am writing you this letter to tell you about my recent left shoulder replacement surgery done on December 13, 2012. Since this is my second shoulder replacement, having had the right one done four years ago,...

- Raymond

// Craig T. Arntz, M.D.