Diana Yastrovskaya is a healthcare defense and regulatory litigator at Health Law Alliance. She defends companies and individuals nationwide in healthcare-related criminal, civil, and administrative proceedings, with particular focus on matters where the regulatory stakes intersect with operational survival.
Industry publications have recognized Diana as a "Rising Star" in healthcare litigation. Clients turn to her for the combination of academic precision (Cardozo Law magna cum laude; Cardozo Law Review editor) and practical experience defending some of the most exposed actors in the healthcare delivery supply chain.
Diana's practice covers the full range of healthcare regulatory exposure. She represents clients in proceedings brought by the U.S. Department of Justice, State Attorneys General, the U.S. Department of Health and Human Services Office of Inspector General (HHS-OIG), the Drug Enforcement Administration (DEA), state Medicaid Fraud Control Units (MFCUs), and state licensing boards. Each forum has its own procedural framework, its own evidentiary standards, and its own enforcement track; Diana coordinates the defense across all of them when matters span multiple proceedings.
Diana has represented health systems, integrated delivery networks (IDNs), clinical and reference laboratories, management services organizations (MSOs), pharmacies, individual physicians, and private equity investors throughout the healthcare delivery supply chain. The breadth of representation matters: a private equity acquirer evaluating a healthcare target, a physician practice facing a state licensing inquiry, and a pharmacy responding to an HHS-OIG subpoena all draw on overlapping but distinct procedural and evidentiary frameworks. Diana's practice spans them.
Diana is fluent in Russian and represents Russian-speaking healthcare clients alongside the firm's English-speaking practice. Healthcare regulatory matters frequently involve documents, depositions, and witness testimony in multiple languages; the ability to handle Russian-language material directly, without translation overhead, materially shortens the defense timeline and reduces the risk of translation-driven misinterpretation.
At Health Law Alliance, Diana's work integrates with the firm's former-prosecutor and senior-healthcare-executive bench. Her regulatory litigation experience complements the firm's broader practice across PBM audit defense, network terminations, DEA matters, healthcare fraud defense, and False Claims Act work. Diana takes a leading role on matters where the procedural posture spans multiple regulators and where the defense framework requires coordinated motion practice across forums.
Matters Diana personally leads - drawing on her healthcare regulatory litigation practice across federal and state forums.
Consultations are confidential and protected by attorney-client privilege. Our team responds within one business day - often sooner when time is of the essence.
