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OAA Orthopaedic Specialists 

Providing Specialized Orthopedic Care in Lehigh Valley since 1970


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OAA Orthopaedic Specialists 

Providing Specialized Orthopedic Care in Lehigh Valley since 1970

Your Board-Certified Orthopedic Specialists in Eastern PA

Superior Orthopedic Care

At OAA Orthopaedic Specialists, our mission is to provide comprehensive orthopedic care to individuals of all ages, using a physician-led approach that is dedicated to convenience, cost effectiveness, quality, and compassion, with the common goal of improving our patients’ lives.  

As one of the largest specialist groups in the United States, we have 40+ specialized providers who are experts in their respective fields. Our size also ensures that we can offer our patients the safest, most affordable care available nationwide.

Our very own Dr. Jill Crosson was on 94.1 WIP Radio with Angelo Cataldi discussing the injuries of The Philadelphia Eagles players, specifically Carson Wentz and Lane Johnson. Click to listen.
Dr. Jay Kalawadia discusses the Best Practices for Preventing and Managing Knee Pain.

Mako SmartRobotics™ for Partial Knee Replacement

OAA is now offering Mako SmartRobotics™ for partial knee replacements. Mako SmartRobotics™ is an innovative solution for many people who are suffering from painful arthritis of the knee. Need customized care, tailored to fit your needs? Learn more today.


Doctor Talking to Patient about Knee

Pennsylvania's Top Sports Medicine Institute

Experienced Sports Medicine Specialists in PA

No matter what type of athlete you are, the Sports Medicine Institute at OAA is here to help you achieve your recovery goals after a sports-related injury. Our PA sports medicine specialists have experience treating athletes up to the professional level, and our solutions are geared toward returning you to full functionality once you hit the field again!


Man Holding Another Man's Leg

Happy Team Members and Patients

Top Rated Orthopedic Surgeons Across Allentown & Bethlehem, PA

Conveniently Located in Lehigh, Northampton, Carbon and Berks Counties

We Accept Most Major Insurances

OAA accepts most major insurance plans and a short list of accepted plans are displayed here. Click the "View Full List" button to access the comprehensive list of insurances accepted.

If you don’t see your provider listed here, call our office today. Our knowledgeable staff is happy to discuss your coverage options with you.

Our Patients Love Us!

We are dedicated to providing comprehensive orthopedic care in a compassionate and caring environment. See what our patients and their families have to say.

  • I like the way things are explained to me and why something is done the way it is . you are not treated like you wouldn't understand.

    Posted On November 30, 2021
  • Dr. Crosson and her team are phenomenal. She takes the time to explain everything and answer all of your questions. The team helps put you at ease and is always upbeat. Every encounter with this office has been nothing but exceptional. I know that she cares about my treatment and short and long t...

    Posted On November 22, 2021
  • Dr. Gregor Hawk and his P.A. Patti Connolly both took good care of me during my shoulder replacement surgery and follow up. I'm anxious to move forward and get back to normal again and be pain free. many thanks!

    Posted On November 20, 2021
  • Excellent! So incredibly KNOWLEDGEABLE AND personable..a true pleasure and anxiety reducer!!

    Posted On November 18, 2021
  • ONY was a revelation. A great listener who tuned into my problem and drilled down to a diagnosis, then prognosis effortlessly. I’ve never felt so cared for by a medical professional. I recommend him HIGHLY.

    Posted On November 10, 2021
  • Doctor Krafczyk was great. Extremely helpful as well as professional. I look forward to my next visit with Him.

    Posted On November 10, 2021
  • Had a good follow-up with Brian. He explained a number of things that happened during my surgery and answered my questions.

    Posted On November 10, 2021
  • I made a great decision when I chose OAA for my hip replacement. The level of professionalism from both Patti and Dr. Hawk surpassed my expectations, they truly care and support their patients.

    Posted On November 10, 2021
  • Amy is a very caring and very professional PA. She listens and understands if you’re having any pain. Very compassionate and good at her job. I will miss being her patient.

    Posted On November 8, 2021
  • Dr. Cook was great! He was friendly, kind, and very knowledgeable. He took the time to answer all of my questions and discussed the pros and cons of several treatment options in order to find the best option to fit my needs. I would highly recommend him.

    Posted On October 29, 2021