Mastorakos Orthodontic Associates

Mastorakos Orthodontic Associates Welcome to Mastorakos Orthodontic Associates, conveniently located in St. Louis, Missouri. Dr. Willi Conveniently located in St. Louis and Chesterfield.

Dr. Bill Mastorakos is proud to offer outstanding orthodontic care for children and adults.

It’s the big guy’s birthday! Happy, happy birthday Dr. Bill! The absolute best - in and out of the office 🎂
01/27/2026

It’s the big guy’s birthday! Happy, happy birthday Dr. Bill! The absolute best - in and out of the office 🎂

Due to the weather conditions and safety of our patients & staff, Mastorakos Orthodontics will be closed on Monday, Janu...
01/26/2026

Due to the weather conditions and safety of our patients & staff, Mastorakos Orthodontics will be closed on Monday, January 26th. Stay safe & warm!

01/01/2026
❄️Who knew that snow days with Dr. Bill and our staff could be so fun?!❄️
12/02/2025

❄️Who knew that snow days with Dr. Bill and our staff could be so fun?!❄️

No tricks today, just treats! Wishing all our patients and families a Happy and Safe Halloween 👻 🎃
10/30/2025

No tricks today, just treats! Wishing all our patients and families a Happy and Safe Halloween 👻 🎃

10/20/2025
What a truly remarkable milestone! Thank you Carol for 15 wonderful years. 15 years of hard work and dedication. 15 year...
09/25/2025

What a truly remarkable milestone! Thank you Carol for 15 wonderful years. 15 years of hard work and dedication. 15 years of helping grow and shape MOA. Carol, your leadership and positive attitude continue to inspire and motivate all those around you. Here is to you and many more years!

Happy, happy birthday to our  #1! We love you Christa!
09/04/2025

Happy, happy birthday to our #1! We love you Christa!

07/24/2025

For decades, Bill quietly endured crippling shoulder pain. It stole his sleep, his passion for golf, and even affected his family. He tried to get by, gritting his teeth, but the pain became too much.

That's when Bill turned to the WashU Medicine Orthopedics team at Barnes-Jewish West County Hospital. Under the expert care of Dr. Alexander Aleem, an advanced reverse shoulder arthroplasty became a "life-changing event," giving Bill a shoulder that feels like he's in his 20s again.

Read how Bill regained his full range of motion, said goodbye to pain, and got his active life back: https://heyor.ca/Je9HI9

WashU Medicine Physicians

Address

10115 Manchester Road Ste 200
St. Louis, MO
63122

Opening Hours

Monday 7am - 4pm
Tuesday 7am - 4pm
Wednesday 7am - 4pm
Thursday 7am - 4pm

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