Orthopaedic Surgical Associates & Merrimack Valley Spine Center (“OSA”) were recently notified of a data breach impacting a third-party vendor, ConnectOnCall. OSA takes the protection of patient information seriously. Following notification of this incident, OSA terminated the partnership with ConnectOnCall. Patients will receive notification letters of the incident directly from ConnectOnCall. Patients may contact ConnectOnCall and learn more about the incident from the notification letter, or at the following web address: https://www.phreesia.com/security-incident/

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Steven Alter, MD
  • Hand and Upper Extremity

Practicing in:

North Chelmsford
Atul Bhat, MD
  • Physiatry
  • Spine

Practicing in:

North Chelmsford
Steven T. DiSegna, MD
  • Hip and Knee Replacement

Practicing in:

North Chelmsford and Westford
Elisabeth R. Gennis, MD
  • Hand and Upper Extremity

Practicing in:

North Chelmsford
Samuel D. Gerber, MD
  • Sports Medicine
  • Hip and Knee Replacement

Practicing in:

North Chelmsford
Thomas Herron, DO
  • Sports Medicine

Practicing in:

Westford and North Chelmsford
Eric Holstein, MD
Allis Kim, MD
  • Sports Medicine
  • Hip and Knee Replacement

Practicing in:

Westford
Mark A. Lapp, MD
Jeremy M. Moses, MD
  • Sports Medicine

Practicing in:

North Chelmsford
David J. Prybyla, MD
  • Hip and Knee Replacement

Practicing in:

North Chelmsford and Westford
Scott A. Sigman, MD
  • Sports Medicine

Practicing in:

North Chelmsford
Howard Wu, MD
  • Sports Medicine
  • Hip and Knee Replacement

Practicing in:

North Chelmsford
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