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Please note: Orthopaedic Surgical Associates (OSA) requires payment of outstanding balances at the time of check-in for your appointment. Thank you.

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Locations in Chelmsford and Westford

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Orthopaedic Surgical Associates

For more than 30 years, Orthopaedic Surgical Associates (OSA) and Merrimack Valley Spine Center have provided an elite level of expertise and breadth of subspecialty care few practices offer. See one of our fellowship-trained specialists—educated at the nation’s leading institutions–right in your own backyard. Now, with online scheduling, getting started has never been easier.

Why Schedule Online?

Online scheduling lets you choose the provider, location, and time that works best for you – no phone call required.

  1. Choose your condition or specialist
  2. Select an appointment time and location that fits your schedule
  3. Get the care you deserve from trusted experts in orthopedic care
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Common Conditions We Treat

  • Sports Injuries
  • Knee, Hip & Shoulder Pain
  • Fractures
  • Back & Neck Conditions
  • Arthritis
  • Hand, Wrist, & Elbow Isssues
  • Foot & Ankle Issues
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What Our Patients Say About Us