The insomnia ransomware group listed Nephrology Associates on its data leak site on 2026-04-28. Country: US Sector: Healthcare Domains named: www.arnapa.com Claim as published on the leak site: Nephrology Associates, PA is a leading central Arkansas nephrology practice with seven highly trained physicians across seven locations. They provide compassionate kidney care, accept all insurances, and aim to create a welcoming environment for patients.