Nephrology Associates Discloses 2026 Data Breach Impacting Patient Records
Nephrology Associates, M.D., P.A., a U.S.-based medical practice specializing in kidney care, confirmed a data breach after unauthorized access to its network between January 17 and April 9, 2026. The incident was first detected on July 1, 2026, following a claim by the Insomnia ransomware group, which posted stolen data on the dark web on April 5, 2026.
An investigation, conducted with external cybersecurity experts, revealed that exposed data included full names, dates of birth, government-issued IDs (e.g., driver’s licenses), treatment and diagnosis details, and health insurance policy information. The total number of affected individuals remains undisclosed.
Nephrology Associates began notifying impacted patients via written letters on July 30, 2026, and established a dedicated response line (888-289-6950) for inquiries. The company’s notifications also included guidance on credit monitoring, fraud alerts, and medical identity theft prevention, along with state-specific resources for residents of Iowa, Maryland, Massachusetts, New York, North Carolina, Oregon, and Washington, D.C.
Source: https://www.claimdepot.com/data-breach/nephrology-associates-2026-5ce77
Nephrology Associates, P.C. cybersecurity rating report: https://www.rankiteo.com/company/nephrology-associates-p-c
"id": "NEP1785443438",
"linkid": "nephrology-associates-p-c",
"type": "Ransomware",
"date": "1/2026",
"severity": "100",
"impact": "4",
"explanation": "Attack with significant impact with customers data leaks"{'affected_entities': [{'industry': 'Healthcare',
'location': 'United States',
'name': 'Nephrology Associates, M.D., P.A.',
'type': 'Medical Practice'}],
'attack_vector': 'Unauthorized network access',
'customer_advisories': 'Guidance on credit monitoring, fraud alerts, and '
'medical identity theft prevention; state-specific '
'resources for residents of Iowa, Maryland, '
'Massachusetts, New York, North Carolina, Oregon, and '
'Washington, D.C.',
'data_breach': {'data_exfiltration': 'Yes',
'personally_identifiable_information': 'Full names, dates of '
'birth, '
'government-issued '
'IDs, treatment and '
'diagnosis details, '
'health insurance '
'policy information',
'sensitivity_of_data': 'High',
'type_of_data_compromised': 'Personal Identifiable '
'Information (PII), Protected '
'Health Information (PHI)'},
'date_detected': '2026-07-01',
'date_publicly_disclosed': '2026-07-30',
'description': 'Nephrology Associates, M.D., P.A. confirmed a data breach '
'after unauthorized access to its network between January 17 '
'and April 9, 2026. The incident was detected following a '
'claim by the Insomnia ransomware group, which posted stolen '
'data on the dark web. Exposed data included full names, dates '
'of birth, government-issued IDs, treatment and diagnosis '
'details, and health insurance policy information.',
'impact': {'data_compromised': 'Full names, dates of birth, government-issued '
'IDs, treatment and diagnosis details, health '
'insurance policy information',
'identity_theft_risk': 'High'},
'investigation_status': 'Ongoing',
'ransomware': {'data_exfiltration': 'Yes', 'ransomware_strain': 'Insomnia'},
'references': [{'source': 'Nephrology Associates Data Breach Notification'}],
'regulatory_compliance': {'regulations_violated': 'HIPAA (assumed)'},
'response': {'communication_strategy': 'Written letters to impacted patients, '
'dedicated response line '
'(888-289-6950), guidance on credit '
'monitoring and fraud alerts',
'third_party_assistance': 'External cybersecurity experts'},
'threat_actor': 'Insomnia ransomware group',
'title': 'Nephrology Associates Data Breach Impacting Patient Records',
'type': 'Data Breach, Ransomware'}