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

a man in a suit and tie

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’m just another success story on Dr. Barrett’s file. Almost four months out I’m happy to have my new knee. Although rehab is still in progress, I can barely catch up with the knee as it walks all by itself – no pain....

- Oleg G.

I’m a 57-year-old guy who has worked desk jobs for the past 30+ years. I’ve been active my whole life. I enjoy playing various sports such as baseball, basketball and soccer, and outdoor activities such as long distance running, skiing and...

- Tom

// Andrew L. Merritt, M.D.

Before I came to Proliance Orthopedic Associates I was VERY discouraged.  I was in pain every day for months, but being told nothing was wrong.  The day I met Dr. Shrivastava and Jeannie, my world brightened.  They assured me that I would get...

- Kimberly

// Niket Shrivastava, M.D.

It was the day that my left knee collapsed under my own weight for no apparent reason that I realized that I could no longer ignore the pain in my knees. That moment came as a complete shock to me because I’ve been active all my life. I played...

- Douglas

// Andrew L. Merritt, M.D.

Dear Dr. Barrett,Thank you for taking my husband under your care and facilitating a very successful left total hip replacement outcome.During his follow-up visit you asked him how he viewed his recovery with the anterior approach.  His response...

- Wendy

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

Dear Dr. Cero,Just wanted to let you know that my surgery is just beautiful. My doctor, who is Dr. Hatfied, that had done my hip was very pleased with the x-ray. He said you did a real good job. How about that? He took more x-rays last week and...

- Rita

Dear Dr. Arntz,I am writing this letter to thank you for your total shoulder replacement surgery you performed on Oct 25, 2012.Before the surgery I was in pain all the time. I had trouble sleeping at night and doing simple household chores was...

- Robert

// Craig T. Arntz, 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

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.