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.
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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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.

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.

Dr. Cero has successfully operated on my youngest daughter Rebecca, my wife Lyn, and me on five  occasions. I had three “industrial incidents” that created much pain in my left knee on one occasion and my right knee on 2 occasions. After...

- James

Even when military retiree John Clements was living with bone-on-bone pain in his right knee, he started his day at 6 a.m. and kept going until about 10 p.m. He lived with arthritic deterioration in his knee for 20 years.Clements had his right...

- Clement

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

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 had a hip replacement in September and am doing great. Dr.Cero and her staff were exceptional. Dr. Cero requested that the surgery and recovery would be a lot better if I was to lose some weight. I took her advice and extended my surgery a few...

- James

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

August, 2015As a 64 year old active male who has been in pain for the past couple of years, I scheduled an initial appointment with Dr. Andrew Merritt. I immediately had confidence in his ability to “help” me with getting back to my regular...

- Kenneth

// Andrew L. Merritt, M.D.

Though early hip replacement is the new trend For 64 years you have been a good friend It is to thank you that I am writing this ode For you have done your best to carry my loadYou have been in London, Paris and French countryside You have been...

- Pat