Exposed Data Types
17Names
Physical addresses
Phone numbers
Dates of birth
Social security numbers
Driver’s license numbers
Passport numbers
Other government identifiers
Health-service locations and dates
Treatments or conditions
Diagnoses and diagnosis codes
Prescription information
Medical histories
Assigned physicians
Financial account numbers without access credentials
Health-insurance subscriber or identification numbers
Patient account numbers
Additional Information
Added DateJuly 27, 2026
Breach DateNovember 5, 2025
Domaincmpractice.com
SourceColumbia Medical Practice notice, HHS/OCR report, and Massachusetts Attorney General consumer letter
Last Content UpdateJuly 27, 2026
Verification and editorial method
LeakData compares the incident name, date, affected-record count, and exposed data types with accessible sources. Unverified fields are not presented as facts, and records are updated when new evidence becomes available.
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