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

📄

A&A Services d/b/a Sav-Rx Data Breach (2024)

Event

A&A Services d/b/a Sav-Rx data breach in NE affecting 2,812,336 individuals. Reported 2024-05-24.

📄

AHS Management Company, Inc. Data Breach (2024)

Event

AHS Management Company, Inc. data breach in TN affecting 23,686 individuals. Reported 2024-01-22.

📄

ARC Industries Inc. of Franklin County Data Breach (2022)

Event

ARC Industries Inc. of Franklin County data breach in OH affecting 22,011 individuals. Reported 2022-06-17.

📄

ARx Patient Solutions Data Breach (2023)

Event

ARx Patient Solutions data breach in KS affecting 41,166 individuals. Reported 2023-06-30.

📄

ASAS Health, LLC Data Breach (2023)

Event

ASAS Health, LLC data breach in TX affecting 25,527 individuals. Reported 2023-05-06.

📄

ATSG, Inc Data Breach (2024)

Event

ATSG, Inc data breach in NY affecting 909,469 individuals. Reported 2024-10-04.

📄

Absolute Dental Services Data Breach (2023)

Event

Absolute Dental Services data breach in NC affecting 10,037 individuals. Reported 2023-08-21.

📄

Acadia Health, LLC d/b/a Just Kids Dental Data Breach (2023)

Event

Acadia Health, LLC d/b/a Just Kids Dental data breach in AL affecting 129,463 individuals. Reported 2023-09-27.

📄

Acadian Ambulance Service, Inc. Data Breach (2024)

Event

Acadian Ambulance Service, Inc. data breach in LA affecting 2,896,985 individuals. Reported 2024-08-20.

📄

Activate Healthcare LLC Data Breach (2023)

Event

Activate Healthcare LLC data breach in IL affecting 93,761 individuals. Reported 2023-06-23.

📄

Adaptive Health Integrations Data Breach (2022)

Event

Adaptive Health Integrations data breach in ND affecting 510,574 individuals. Reported 2022-04-11.

📄

Administrative Fund of the Detectives’ Endowment Association, Inc., Police Department City of New York Data Breach (2022)

Event

Administrative Fund of the Detectives’ Endowment Association, Inc., Police Department City of New York data breach in NY affecting 21,544 individuals. Reported 2022-10-31.

📄

Advanced Homecare Management, LLC DBA Enhabit Home Health & Hospice Data Breach (2026)

Event

Advanced Homecare Management, LLC DBA Enhabit Home Health & Hospice data breach in TX affecting 22,552 individuals. Reported 2026-02-05.

📄

Advanced Medical Management, LLC Data Breach (2023)

Event

Advanced Medical Management, LLC data breach in MD affecting 319,485 individuals. Reported 2023-06-29.

📄

Advanced Recovery Equipment & Supplies, LLC Data Breach (2024)

Event

Advanced Recovery Equipment & Supplies, LLC data breach in NY affecting 56,000 individuals. Reported 2024-10-18.

📄

Advanced Reproductive Health Center Ltd., d/b/a Chicago IVF Data Breach (2023)

Event

Advanced Reproductive Health Center Ltd., d/b/a Chicago IVF data breach in IL affecting 2,603 individuals. Reported 2023-08-18.

📄

Advocates for a Healthy Community dba Jordan Valley Community Health Center Data Breach (2025)

Event

Advocates for a Healthy Community dba Jordan Valley Community Health Center data breach in MO affecting 8,842 individuals. Reported 2025-12-22.

📄

Aesthetic Dermatology Associates, PC Data Breach (2022)

Event

Aesthetic Dermatology Associates, PC data breach in PA affecting 33,793 individuals. Reported 2022-10-10.

📄

Affiliated Eye Surgeons Data Breach (2022)

Event

Affiliated Eye Surgeons data breach in MI affecting 23,400 individuals. Reported 2022-04-28.

📄

Aflac Incorporated (“Aflac”) Data Breach (2025)

Event

Aflac Incorporated (“Aflac”) data breach in GA affecting 13,924,906 individuals. Reported 2025-08-08.

📄

Air Methods, LLC Data Breach (2024)

Event

Air Methods, LLC data breach in NV affecting 34,016 individuals. Reported 2024-01-12.

📄

Alabama Cardiovascular Group Data Breach (2024)

Event

Alabama Cardiovascular Group data breach in AL affecting 280,534 individuals. Reported 2024-08-02.

📄

Alabama Ophthalmology Associates Data Breach (2025)

Event

Alabama Ophthalmology Associates data breach in AL affecting 131,576 individuals. Reported 2025-04-08.

📄

Alameda Health System Data Breach (2022)

Event

Alameda Health System data breach in CA affecting 90,000 individuals. Reported 2022-05-20.

📄

Albany ENT & Allergy Services, PC. Data Breach (2023)

Event

Albany ENT & Allergy Services, PC. data breach in NY affecting 224,486 individuals. Reported 2023-05-25.

📄

Alera Group, Inc. Data Breach (2025)

Event

Alera Group, Inc. data breach in IL affecting 155,567 individuals. Reported 2025-07-29.

📄

Allegheny County Data Breach (2023)

Event

Allegheny County data breach in PA affecting 689,686 individuals. Reported 2023-07-28.

📄

Allegheny Health Network Home Medical Equipment LLC and Allegheny Health Network Home Infusion LLC Data Breach (2025)

Event

Allegheny Health Network Home Medical Equipment LLC and Allegheny Health Network Home Infusion LLC data breach in PA affecting 292,773 individuals. Reported 2025-01-17.

📄

AllerVie Health Data Breach (2025)

Event

AllerVie Health data breach in TX affecting 80,521 individuals. Reported 2025-12-23.

📄

Alliance Physical Therapy Group, LLC Data Breach (2022)

Event

Alliance Physical Therapy Group, LLC data breach in MI affecting 197,588 individuals. Reported 2022-02-23.

📄

Allied Eye Physicians and Surgeons, Inc. Data Breach (2022)

Event

Allied Eye Physicians and Surgeons, Inc. data breach in OH affecting 20,651 individuals. Reported 2022-04-27.

📄

Allison Transmission Inc. Health Care Program for Hourly Employees / Wellness Program for Salaried Employees Data Breach (2023)

Event

Allison Transmission Inc. Health Care Program for Hourly Employees / Wellness Program for Salaried Employees data breach in IN affecting 5,330 individuals. Reported 2023-08-10.

📄

Allwell Behavioral Health Services Data Breach (2022)

Event

Allwell Behavioral Health Services data breach in OH affecting 29,972 individuals. Reported 2022-05-23.

📄

Aloha Nursing Rehab Centre Data Breach (2023)

Event

Aloha Nursing Rehab Centre data breach in HI affecting 20,216 individuals. Reported 2023-02-24.

📄

American Addiction Centers, Inc. Data Breach (2024)

Event

American Addiction Centers, Inc. data breach in TN affecting 410,747 individuals. Reported 2024-11-25.

📄

American National Group, LLC Data Breach (2023)

Event

American National Group, LLC data breach in TX affecting 47,711 individuals. Reported 2023-08-11.

📄

AmerisourceBergen Specialty Group, LLC Data Breach (2024)

Event

AmerisourceBergen Specialty Group, LLC data breach in PA affecting 252,214 individuals. Reported 2024-05-24.

📄

Amerita Data Breach (2023)

Event

Amerita data breach in KS affecting 219,707 individuals. Reported 2023-09-05.

📄

Anchorage Neighborhood Health Center Data Breach (2025)

Event

Anchorage Neighborhood Health Center data breach in AK affecting 70,555 individuals. Reported 2025-11-19.

📄

Anesthesia Associates of Morristown, P.A. Data Breach (2025)

Event

Anesthesia Associates of Morristown, P.A. data breach in NJ affecting 34,675 individuals. Reported 2025-05-02.

📄

Anne Arundel Dermatology Data Breach (2025)

Event

Anne Arundel Dermatology data breach in MD affecting 1,905,000 individuals. Reported 2025-07-11.

📄

ApolloMD Business Services, LLC Data Breach (2026)

Event

ApolloMD Business Services, LLC data breach in GA affecting 626,540 individuals. Reported 2026-02-10.

📄

Apria Healthcare LLC Data Breach (2022)

Event

Apria Healthcare LLC data breach in IN affecting 1,868,831 individuals. Reported 2022-05-16.

📄

Arbor Associates, Inc. Data Breach (2025)

Event

Arbor Associates, Inc. data breach in MI affecting 17,040 individuals. Reported 2025-07-03.

📄

Aria Care Partners Data Breach (2023)

Event

Aria Care Partners data breach in KS affecting 77,405 individuals. Reported 2023-07-11.

📄

Arietis Health, LLC Data Breach (2023)

Event

Arietis Health, LLC data breach in FL affecting 1,975,066 individuals. Reported 2023-09-29.

📄

Arizona Health Advantage, Inc. d/b/a Arizona Priority Care; AZPC Clinics, LLC; and the health plans for which APC has executed a BAA, listed below Data Breach (2023)

Event

Arizona Health Advantage, Inc. d/b/a Arizona Priority Care; AZPC Clinics, LLC; and the health plans for which APC has executed a BAA, listed below data breach in AZ affecting 10,978 individuals. Reported 2023-02-01.

📄

Arkfeld, Parson, and Goldstein, P.C. doing business as ilumin Data Breach (2022)

Event

Arkfeld, Parson, and Goldstein, P.C. doing business as ilumin data breach in NE affecting 14,984 individuals. Reported 2022-04-29.

📄

Artemis Healthcare Inc. Data Breach (2025)

Event

Artemis Healthcare Inc. data breach in TN affecting 45,867 individuals. Reported 2025-12-23.

📄

Ascension Health Data Breach (2024)

Event

Ascension Health data breach in MO affecting 5,466,931 individuals. Reported 2024-07-03.

📄

Ascension Health Data Breach (2025)

Event

Ascension Health data breach in MO affecting 437,329 individuals. Reported 2025-04-28.

📄

Ascension Michigan (single affiliated covered entity) ACE Data Breach (2022)

Event

Ascension Michigan (single affiliated covered entity) ACE data breach in MI affecting 27,177 individuals. Reported 2022-02-22.

📄

Ascension Seton Data Breach (2023)

Event

Ascension Seton data breach in TX affecting 17,191 individuals. Reported 2023-06-06.

📄

Ascension St. Vincent’s Coastal Cardiology Data Breach (2022)

Event

Ascension St. Vincent’s Coastal Cardiology data breach in GA affecting 71,227 individuals. Reported 2022-10-14.

📄

Asheville Arthritis and Osteoporosis Center, P.A. Data Breach (2024)

Event

Asheville Arthritis and Osteoporosis Center, P.A. data breach in NC affecting 58,251 individuals. Reported 2024-09-20.

📄

Asheville Eye Associates, PLLC Data Breach (2025)

Event

Asheville Eye Associates, PLLC data breach in NC affecting 204,984 individuals. Reported 2025-01-17.

📄

Aspire Rural Health System Data Breach (2025)

Event

Aspire Rural Health System data breach in MI affecting 138,386 individuals. Reported 2025-08-20.

📄

Associates in Pediatric Dentistry Data Breach (2023)

Event

Associates in Pediatric Dentistry data breach in LA affecting 9,703 individuals. Reported 2023-08-25.

📄

Atlanta Women's Health Group, P.C. Data Breach (2023)

Event

Atlanta Women's Health Group, P.C. data breach in GA affecting 33,839 individuals. Reported 2023-06-11.

📄

Atlantic General Hospital Data Breach (2023)

Event

Atlantic General Hospital data breach in MD affecting 26,591 individuals. Reported 2023-03-24.

📄

Atlas Healthcare CT Data Breach (2023)

Event

Atlas Healthcare CT data breach in CT affecting 10,831 individuals. Reported 2023-10-13.

📄

Atrium Health Data Breach (2024)

Event

Atrium Health data breach in NC affecting 585,959 individuals. Reported 2024-12-02.

📄

AuthoraCare Collective Data Breach (2024)

Event

AuthoraCare Collective data breach in NC affecting 57,944 individuals. Reported 2024-11-19.

📄

Authority of the City of Bainbridge and Decatur County (“Memorial Hospital & Manor”) Data Breach (2025)

Event

Authority of the City of Bainbridge and Decatur County (“Memorial Hospital & Manor”) data breach in GA affecting 120,085 individuals. Reported 2025-02-08.

📄

Avem Health Partners Data Breach (2022)

Event

Avem Health Partners data breach in OK affecting 271,303 individuals. Reported 2022-12-13.

📄

Avosina Healthcare Solutions Data Breach (2026)

Event

Avosina Healthcare Solutions data breach in VA affecting 44,425 individuals. Reported 2026-01-10.

📄

Azura Vascular Care Data Breach (2024)

Event

Azura Vascular Care data breach in PA affecting 348,000 individuals. Reported 2024-01-13.

Medical Glossary

Related resources

Filter by Type

3

360 Dental PC Data Breach (2026)

9

90 Degree Benefits, Inc. Data Breach (2022)

90 Degree Benefits, Inc. Data Breach (2023)

A

A&A Services d/b/a Sav-Rx Data Breach (2024)

AHS Management Company, Inc. Data Breach (2024)

ARC Industries Inc. of Franklin County Data Breach (2022)

ARx Patient Solutions Data Breach (2023)

ASAS Health, LLC Data Breach (2023)

ATSG, Inc Data Breach (2024)

Absolute Dental Services Data Breach (2023)

Acadia Health, LLC d/b/a Just Kids Dental Data Breach (2023)

Acadian Ambulance Service, Inc. Data Breach (2024)

Activate Healthcare LLC Data Breach (2023)

Adaptive Health Integrations Data Breach (2022)

Administrative Fund of the Detectives’ Endowment Association, Inc., Police Department City of New York Data Breach (2022)

Advanced Homecare Management, LLC DBA Enhabit Home Health & Hospice Data Breach (2026)

Advanced Medical Management, LLC Data Breach (2023)

Advanced Recovery Equipment & Supplies, LLC Data Breach (2024)

Advanced Reproductive Health Center Ltd., d/b/a Chicago IVF Data Breach (2023)

Advocates for a Healthy Community dba Jordan Valley Community Health Center Data Breach (2025)

Aesthetic Dermatology Associates, PC Data Breach (2022)

Affiliated Eye Surgeons Data Breach (2022)

Aflac Incorporated (“Aflac”) Data Breach (2025)

Air Methods, LLC Data Breach (2024)

Alabama Cardiovascular Group Data Breach (2024)

Alabama Ophthalmology Associates Data Breach (2025)

Alameda Health System Data Breach (2022)

Albany ENT & Allergy Services, PC. Data Breach (2023)

Alera Group, Inc. Data Breach (2025)

Allegheny County Data Breach (2023)

Allegheny Health Network Home Medical Equipment LLC and Allegheny Health Network Home Infusion LLC Data Breach (2025)

AllerVie Health Data Breach (2025)

Alliance Physical Therapy Group, LLC Data Breach (2022)

Allied Eye Physicians and Surgeons, Inc. Data Breach (2022)

Allison Transmission Inc. Health Care Program for Hourly Employees / Wellness Program for Salaried Employees Data Breach (2023)

Allwell Behavioral Health Services Data Breach (2022)

Aloha Nursing Rehab Centre Data Breach (2023)

American Addiction Centers, Inc. Data Breach (2024)

American National Group, LLC Data Breach (2023)

AmerisourceBergen Specialty Group, LLC Data Breach (2024)

Amerita Data Breach (2023)

Anchorage Neighborhood Health Center Data Breach (2025)

Anesthesia Associates of Morristown, P.A. Data Breach (2025)

Anne Arundel Dermatology Data Breach (2025)

ApolloMD Business Services, LLC Data Breach (2026)

Apria Healthcare LLC Data Breach (2022)

Arbor Associates, Inc. Data Breach (2025)

Aria Care Partners Data Breach (2023)

Arietis Health, LLC Data Breach (2023)

Arizona Health Advantage, Inc. d/b/a Arizona Priority Care; AZPC Clinics, LLC; and the health plans for which APC has executed a BAA, listed below Data Breach (2023)

Arkfeld, Parson, and Goldstein, P.C. doing business as ilumin Data Breach (2022)

Artemis Healthcare Inc. Data Breach (2025)

Ascension Health Data Breach (2024)

Ascension Health Data Breach (2025)

Ascension Michigan (single affiliated covered entity) ACE Data Breach (2022)

Ascension Seton Data Breach (2023)

Ascension St. Vincent’s Coastal Cardiology Data Breach (2022)

Asheville Arthritis and Osteoporosis Center, P.A. Data Breach (2024)

Asheville Eye Associates, PLLC Data Breach (2025)

Aspire Rural Health System Data Breach (2025)

Associates in Pediatric Dentistry Data Breach (2023)

Atlanta Women's Health Group, P.C. Data Breach (2023)

Atlantic General Hospital Data Breach (2023)

Atlas Healthcare CT Data Breach (2023)

Atrium Health Data Breach (2024)

AuthoraCare Collective Data Breach (2024)

Authority of the City of Bainbridge and Decatur County (“Memorial Hospital & Manor”) Data Breach (2025)

Avem Health Partners Data Breach (2022)

Avosina Healthcare Solutions Data Breach (2026)

Azura Vascular Care Data Breach (2024)

B

BELLIN HEALTH Data Breach (2023)

Baesman Group, Inc. Data Breach (2023)

Bako Diagnostics Data Breach (2022)