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!

Surgeons in blue scrubs and masks collaborate in an operating room during surgery.


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

Smiling middle-aged man in gray suit and blue tie against a solid blue background.

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
Smiling bald man in black sweater and light blue shirt against a solid blue background.

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

View more

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.

I came to see Dr. Merritt after a frustrating experience with another surgeon. I was scheduled for a total knee replacement with a surgeon at a different hospital and the surgery got cancelled when I was in the pre-op area. The day of surgery it...

- Valerie

// Andrew L. Merritt, M.D.

Dr. Merritt performed a hip replacement on my dad, who was then 90, in the spring of 2015, using the anterior approach.In my opinion, this surgery saved my father’s life. At the time, he was spiraling downhill on several fronts. Because hip...

- Richard B.

// Andrew L. Merritt, 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

Dear Dr. Howlett,I have had many surgeries, but I have seldom had the care that you took to explain the process I would go through. After the surgery, when I saw the X-rays, and the incision, I could tell that you had done an excellent job. More...

- Dawn

// John Howlett, M.D.

Dear Dr. Traci Barthel,I’ve never had someone in your position help me like you did. I want to express my appreciation for everything you did to save my finger. When I came to you I was convinced it would have to be amputated. You gave me hope...

- Jennifer

My name is Annmari and I am 53.  I have been Dr. Howlett’s patient for a little over 3 years now.  I broke all three bones in my ankle and luckily Dr. Howlett was in the emergency room when I got there and he did my surgery that night.  When...

- Annmari D.

// John Howlett, M.D.

I love the ocean. I love the sights, and sounds and smells of a harbor. The birds, the sea life, the people, I love it all. My dream for retirement is to cruise harbor to harbor in my boat enjoying the sights along the way. To explore the harbor...

- James S.

Enjoy this detailed testimonial video from POA patient Lloyd. He walks us through his experience as a patient of POA physician Dr. Craig T. Arntz. From diagnosis to surgery, Lloyd was in the best hands at Proliance Orthopedic Associates. We’re...

- Lloyd

// Craig T. Arntz, M.D.

WOW, where to begin? Firstly, I want to thank Dr. Novak, he is an excellent doctor and very experienced. I broke my fibular playing soccer in July and was in a lot of pain. He immediately talked about surgery and was able to repair my broken...

- Derek

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