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.

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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.

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.

Proliance Surgery Center at Valley - Care Built Around You

At the Proliance Orthopedic Associates 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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Firstly, I can’t express in writing or words my gratitude and thanks for Dr. Andrew Merritt. Dr. Merritt’s surgical skills and genuine / sincere care demonstrated for his patients’ orthopedic wants, needs and desires is quite remarkable....

- Michael Q

// Andrew L. Merritt, 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

Victor is no stranger to shoulder pain. Ten years ago Victor had surgery to repair his right rotator cuff. Then pain in both shoulders was again limiting Victor’s mobility and active lifestyle. His family physician referred him to VOA...

- Victor

// Craig T. Arntz, M.D.

I’ve seen Dr. Howlett multiple times for problems with my hands. Dr. Howlett has the most calming personality that really inspires confidence as a patient.  He’s great at calming my fears and what I appreciate the most is that he really...

- Sandra W.

// John Howlett, M.D.

Dr. Fredrick S. Huang
,I can’t tell you enough what a different person Chad is lately. He’s swimming and biking a lot, and slowly adding more activity. He is so much happier when he’s not in pain. I didn’t really understand the daily...

- Angie (Mom of patient)

// Fredrick S. Huang, M.D.

“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.

I started having problems with my back eight years ago; the pain would come and go and became increasingly worse. I like to take trips and my back pain was slowing me down which was making me angry. I had gone to chiropractors, massage...

- Vickie A.

// Jason H. Thompson, M.D.

I went in to see the skin doc for something little on my face. Really being vain. When I was talking she noticed a mole on my finger. (I hate this mole, came up after a burn) She said that looks like cancer and took a biopsy right away. It came...

- Dawn W.

// John Howlett, M.D.

“I had thumb reconstruction with Dr. Shrivastava at Proliance Orthopedic Associates.  Everyone at Proliance Orthopedic Associates is so nice and professional.  I’ve had three surgeries here with two to go, I wouldn’t go anywhere else...

- Victoria

// Niket Shrivastava, M.D.

January, 2014Dear Dr. Barrett,I am so thankful for your talented surgical skills. My life has changed in so many wonderful ways since June 17th. The following are some of those ways: I can go for walks with my husband. I can actually enjoy...

- Ann