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!

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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!

Introducing Our Newest Physician Assistants

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Terrianna Emerson, PA-C

Terrianna Emerson, PA-C, joined Proliance Orthopedic Associates in 2026 and brings a depth of expertise to our team. Terrianna currently works in both our Renton and Covington clinic locations.

To book an appointment with Terrianna, click the link below!

Book An Appointment
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Gian Kho, PA-C

Gian Kho, PA-C is an orthopedic Physician Assistant working with the sports medicine team, where he is dedicated to helping patients recover from injury and return to active, healthy lifestyles.

To book an appointment with Gian, 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.

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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

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I am enthusiastic to share my patient experience with Dr. Barrett and Proliance Orthopedic Associates, and to inform other people who have an interest in seeking the best care for their hip related issues.I am an experienced war horse, so to...

- Stefan

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.

I was told by 2 surgeons that I needed both knees replaced but I’d better get them done together as it’s so painful that I’d never come back to get the second one done. I was also told that my activities would be very limited as...

- Monica F.

I could barely walk. Movement–even turning in bed–was torture. This went on for years. Two hip replacements later, three months apart, and it was as if I’d been granted a new life. The surgeries, which I’d been dreading,...

- Judy

I received foot fusion surgery for arthritis on Nov. 11, 2015. I feel great now. I just went back to my bowling in March. I am also able to walk my dog at least six blocks, where I was only able to walk a few blocks before. Dr. Novak was very...

- Rosalie L.

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

“I had an injury while on a beach vacation. Dr. Niket Shrivastava offered me guidance remotely. I down played the injury. Dr. Shrivastava, very tactfully, described the severity of my condition and provided me a course of action which had...

- Parag

// Niket Shrivastava, 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

I was living in constant pain, 24 hours a day for years! Before I met Dr. Merritt I was always limping and was limited on the activities that I could do with my young daughter, especially after a full day of work. I had seen other doctors who...

- Abeslin C.

// Andrew L. Merritt, M.D.

Not long ago, I had an accident where I was knocked unconscious, and when I came to, I could see the bones in my arm/elbow area. This is when I met Dr. Howlett at Proliance Orthopedic Associates. Dr. Howlett had great bedside manner from the...

- Ken

// John Howlett, M.D.

“After three decades of reoccurring back problems involving infrequent but sometimes serious sciatic nerve pain, I finally decided that I needed to find a doctor whom I could trust to give me a professional and unbiased analysis of my...

- Larry

// Chris R. Howe, M.D.