Physician Office
Monday – Friday | 8:00 am – 5:00 pm
Physicians & Staff
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Steven T. DiSegna, MD
Allis Kim, MD
David J. Prybyla, MD
![](https://www.orthsurg.com/wp-content/uploads/sites/7/2023/10/OSA_Steven-Disegna_White-Coat_For-Website_Edited.png.webp)
- Hip and Knee Replacement
Practicing in:
North Chelmsford and Westford![](https://www.orthsurg.com/wp-content/uploads/sites/7/2024/03/OSA-Dr-Allis-Kim-White-Coat-Headshot.png.webp)
- Sports Medicine
- Hip and Knee Replacement
Practicing in:
Westford![](https://www.orthsurg.com/wp-content/uploads/sites/7/2023/10/OSA_David_Prybyla_White-Coat_For-Website_Edited.png.webp)
- Hip and Knee Replacement
Practicing in:
North Chelmsford and WestfordShowing 1 of 1Showing 1 of 1
Kristen Proverb, NP-CNurse Practitioner
![](https://www.orthsurg.com/wp-content/uploads/sites/7/2023/10/OSA_Kristen-Proverb_White-Coat_For-Website_Edited.png.webp)
Practicing in:
North Chelmsford and Westford