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!

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!

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.

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.

PATIENT SUCCESS STORIES

View more

“My husband was going to have both knees replaced at the same time, pretty scary stuff. We live in Anchorage, but had a friend recommend Dr. William Barrett. We contacted his office and had xrays, etc. sent down to Seattle through our...

- Penny

Dear Dr. Barrett,I just got back from my Physical Therapy session. I walked in, and I walked out. The other day, I stood at a window, (without having to use a walking aid or lean on someone) and watched the world go by. (I don’t remember the...

- Deb

Dear Dr. Barrett and Team,You and your associates are my super heroes! Last week, during my vacation in Hawaii, I was able to enjoy hiking in the outdoors – 12 weeks from the time of my surgery! I hiked 2 miles in a canyon on one day and 2 days...

- Denise

Dear Dr. Howlett,I have had many surgeries, but I have seldom had the care that you took to explain the process I would go through. After the surgery, when I saw the X-rays, and the incision, I could tell that you had done an excellent job. More...

- Dawn

// John Howlett, M.D.

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.

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 broke my wrist while snowboarding, which is how I met Dr. Howlett. I came into the office for a consultation after I had my cast taken off, and Dr. Howlett recommended surgery. Since surgery was the recommendation, I reluctantly agreed. I was...

- Roy W.

// John Howlett, M.D.

Dr. Cero, When you gave me my new knee, you took ten years off of my age and my daily life and outlook improved. My wife Betty, daughter Pat, and granddaughter DeDe were all relieved. Your wonderful, warm conversation gave us so much information...

- Albert

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 finally decided to do something serious about my basketball knee (surgery in 1978 to remove part of meniscus cartilage), injured from playing at 45 long after I should have quit. So, I had knee replacement about 1 year ago – Sept 9, 2014....

- Eugene W.