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!

a couple of surgeons performing robotic surgery

Introducing VELYS Assisted Robotic Solution

Every knee is different, as is every patient requiring a knee replacement procedure. VELYS™ Robotic-Assisted Solution simplifies knee replacement surgery by providing valuable insights, versatile execution, and verified performance to deliver efficiency for surgeons and optimize patient outcomes.

Introducing Our Newest Physicians

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Dr. Walterscheid

Zakkary Walterscheid, MD, joined Proliance Orthopedic Associates in 2024 as a hand and upper extremity surgeon. He is dedicated to helping patients with hand, wrist, and elbow issues, including fractures, trauma, and complex reconstructions.

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

Book An Appointment
a man in a suit and tie

Dr. Adams

Archie Adams, MD, joined Proliance Orthopedic Associates in January 2025 and is well-known and respected in the field of occupational medicine having served as an expert witness. Dr. Adams currently specializes in Workers' Compensation claims.

To book an appointment with Dr. Adams, 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.

HELPFUL RESOURCES

PATIENT SUCCESS STORIES

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I am writing this letter to thank Proliance Orthopedic Associates and Dr. Susan Cero for making my joint replacement surgery a complete success. The surgery was performed on May 18, 2015. The outcome is much better than expected. The joint...

- Jana T.

We wanted to write and say thank you for your work on George’s hand injury.  It has been 2.5 years since the accident and he has regained 80-85% use of his right hand, including the ability to write and fish.  We truly believe you were an...

- George and Dottie J.

// John Howlett, M.D.

I was referred to Proliance and Dr. Howlett due to a fall I took where I fractured my left arm just below the shoulder. When I first went in to see him I was in quite a bit of pain. The people who worked with me were very conscientious of that...

- Carolyn M.

// 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.

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

I have now had 2 surgeries at Proliance and Valley Medical and they were both top notch. First was hip replacement with Dr. Barrett a few years ago. There’s a very good reason he has been on the “Top Doctor” list for so many...

- Sue W.

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.

Due to the fact I injured my knees severely when I was young and playing sports. I was in need of total knee replacement for both knees. After exhausting every non-invasive way of providing relief I went forward. I am in my mid forties and after...

- Tom

// Fredrick S. Huang, M.D.

On the way to the summit of Mount Rainier.

- Rachel

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.