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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This past summer I met with Proliance Orthopedic Associates for help with my continuing back pain from degenerating discs and arthritis in my spine generating years ago in my college days in the 60s.  I met with Dr. Jason Thompson at Proliance...

- Janet

// Jason H. Thompson, 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.

My primary care provider referred me to see Dr. Arntz at Proliance Orthopedic Associates in Renton because I was having problems with my shoulder.  I was having extreme pain in my shoulder whenever I would reach out to grab an object, or pick up...

- Regina S

// Craig T. Arntz, M.D.

Anterior approach patient Largo, 67, received hip replacement surgery from POA surgeon Dr. William Barrett. After 5-6 years of knee and back pain, Largo’s hip became a problem. Dr. Barrett had performed orthopedic surgery on her husband and...

- POA Patient Largo

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.

Before surgery, I was limping -- I was unable to lift my left foot to walk properly or ride my motorcycle. Since surgery, I can lift my left foot, walk properly and shift gears on my Harley. Dr. Clark showed me clearly (via x-rays), what and...

- Mark

“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.

Dear Dr. Cero,It has been a long journey from shattered clavicle to age division National Champion! Thank you & your team at Proliance Orthopedic Associates so much for being my partner in recovery!I appreciated our discussions about the...

- Kerry

Dr. Shrivastava is very polite, caring, and positive.  I feel that he is truly concerned about my well-being. Jeannie (his medical assistant) is always cheerful and helpful, she is very efficient too. Since coming to Proliance Orthopedic...

- Margaret

// Niket Shrivastava, M.D.

I had degenerative disc in my right hip and suffered for four to five years in pain with the last two or three years being unbearable. I couldn’t tie my shoes, sitting in the car was difficult, and I could no longer participate in yoga classes...

- John

// Andrew L. Merritt, M.D.