What is the Medical Glossary?

Browse our complete A-Z glossary of medical terms, drugs, conditions, procedures, hospitals, and healthcare organizations.

What healthcare terms are defined in the MedicalRecords.com glossary?

The MedicalRecords.com glossary covers medical records terminology, healthcare IT acronyms, insurance terms, clinical vocabulary, regulatory terms (HIPAA, HITECH), and EHR/EMR industry definitions. It is designed for patients, healthcare professionals, and technology buyers seeking clear explanations.

What does EMR stand for in healthcare?

EMR stands for Electronic Medical Record. It is a digital version of the paper charts kept in a clinician's office, containing a patient's medical and treatment history from a single practice. Unlike EHRs (Electronic Health Records), EMRs are not typically designed to share information outside the practice.

What is HIPAA and why does it matter for medical records?

HIPAA (Health Insurance Portability and Accountability Act) is a federal law that establishes standards to protect sensitive patient health information. Under HIPAA, patients have the right to access and obtain copies of their medical records, and covered entities must respond to records requests within 30 days.

What is the difference between an EHR and an EMR?

An EMR (Electronic Medical Record) is a digital record used within a single practice. An EHR (Electronic Health Record) is designed to be shared across multiple healthcare settings — different physicians, hospitals, labs, and specialists — giving a broader view of a patient's care history.

Medical Glossary | A-Z Entity Directory

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Wake Family Eye Care Data Breach (2023)

Event

Wake Family Eye Care data breach in NC affecting 14,264 individuals. Reported 2023-07-14.

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WakeMed Health and Hospitals Data Breach (2022)

Event

WakeMed Health and Hospitals data breach in NC affecting 495,808 individuals. Reported 2022-10-14.

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Warner Norcross and Judd, LLP Data Breach (2022)

Event

Warner Norcross and Judd, LLP data breach in MI affecting 255,160 individuals. Reported 2022-08-24.

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Warren General Hospital Data Breach (2023)

Event

Warren General Hospital data breach in PA affecting 168,921 individuals. Reported 2023-11-09.

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Watson Clinic Data Breach (2024)

Event

Watson Clinic data breach in FL affecting 280,278 individuals. Reported 2024-05-08.

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Watsonville Community Hospital Data Breach (2024)

Event

Watsonville Community Hospital data breach in CA affecting 30,312 individuals. Reported 2024-12-31.

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WebTPA Employer Services, LLC (“WebTPA”) Data Breach (2024)

Event

WebTPA Employer Services, LLC (“WebTPA”) data breach in TX affecting 2,518,533 individuals. Reported 2024-05-08.

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Weiser Valley Hospital District dba Weiser Memorial Hospital Data Breach (2025)

Event

Weiser Valley Hospital District dba Weiser Memorial Hospital data breach in ID affecting 59,990 individuals. Reported 2025-05-15.

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WellMed Medical Management Data Breach (2022)

Event

WellMed Medical Management data breach in TX affecting 10,506 individuals. Reported 2022-09-23.

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Welltok, Inc. Data Breach (2023)

Event

Welltok, Inc. data breach in CO affecting 8,493,379 individuals. Reported 2023-11-06.

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Wenco Management, LLC Health and Welfare Benefit Plan Data Breach (2022)

Event

Wenco Management, LLC Health and Welfare Benefit Plan data breach in OH affecting 20,526 individuals. Reported 2022-10-20.

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Westat, Inc. Data Breach (2023)

Event

Westat, Inc. data breach in MD affecting 20,045 individuals. Reported 2023-11-03.

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Western Montana Mental Health Center Data Breach (2024)

Event

Western Montana Mental Health Center data breach in MT affecting 86,758 individuals. Reported 2024-11-14.

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Western Washington Medical Group Data Breach (2023)

Event

Western Washington Medical Group data breach in MS affecting 350,863 individuals. Reported 2023-10-26.

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Western Wayne Family Physicians Data Breach (2025)

Event

Western Wayne Family Physicians data breach in MI affecting 62,000 individuals. Reported 2025-03-26.

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Wilmington Community Clinic Data Breach (2024)

Event

Wilmington Community Clinic data breach in CA affecting 11,601 individuals. Reported 2024-10-11.

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Wisconsin Department of Health Services Data Breach (2022)

Event

Wisconsin Department of Health Services data breach in WI affecting 12,358 individuals. Reported 2022-10-07.

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Wood River Health Data Breach (2025)

Event

Wood River Health data breach in RI affecting 54,926 individuals. Reported 2025-07-28.

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Wright & Filippis LLC Data Breach (2022)

Event

Wright & Filippis LLC data breach in MI affecting 877,584 individuals. Reported 2022-11-18.

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Wyoming County Community Health System Data Breach (2023)

Event

Wyoming County Community Health System data breach in NY affecting 26,000 individuals. Reported 2023-11-16.

Medical Glossary

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Wake Family Eye Care Data Breach (2023)

WakeMed Health and Hospitals Data Breach (2022)

Warner Norcross and Judd, LLP Data Breach (2022)

Warren General Hospital Data Breach (2023)

Watson Clinic Data Breach (2024)

Watsonville Community Hospital Data Breach (2024)

WebTPA Employer Services, LLC (“WebTPA”) Data Breach (2024)

Weiser Valley Hospital District dba Weiser Memorial Hospital Data Breach (2025)

WellMed Medical Management Data Breach (2022)

Welltok, Inc. Data Breach (2023)

Wenco Management, LLC Health and Welfare Benefit Plan Data Breach (2022)

Westat, Inc. Data Breach (2023)

Western Montana Mental Health Center Data Breach (2024)

Western Washington Medical Group Data Breach (2023)

Western Wayne Family Physicians Data Breach (2025)

Wilmington Community Clinic Data Breach (2024)

Wisconsin Department of Health Services Data Breach (2022)

Wood River Health Data Breach (2025)

Wright & Filippis LLC Data Breach (2022)

Wyoming County Community Health System Data Breach (2023)