A compliance audit that surfaces a billing pattern touching the Anti-Kickback Statute or the Stark Law puts a provider in an immediate bind: investigate the facts thoroughly enough to make an informed decision, without creating a paper trail a whistleblower's counsel or a False Claims Act relator can later subpoena. Whether that record stays protected by attorney-client privilege and the work product doctrine depends on who directs the investigation and what gets written down along the way. A practice that treats the investigation as an internal compliance exercise, run by a practice manager without counsel directing it, routinely loses that protection before anyone realizes it was at risk.
Structuring the Investigation Under Counsel
Privilege attaches to an internal investigation only when counsel, not compliance staff, directs it. Upjohn Co. v. United States, 449 U.S. 383 (1981), rejected the control group test that had limited privilege to communications with senior decision-makers, and held that communications between company counsel and employees at any level are privileged when the employee is questioned at counsel's direction, for the purpose of securing legal advice for the company, and understands that is why the interview is happening. All three elements have to be true from the first interview, not layered in afterward. An investigation compliance staff already started before counsel joins can leave the earliest, often most candid, interviews outside the privilege entirely.
Upjohn Warnings and the Employee Interview
Each witness interview should open with a warning, adapted from Upjohn, telling the employee that counsel represents the company and not the employee individually, that the privilege belongs to the company alone, and that the company may disclose the substance of the interview to the government without the employee's consent. Skipping the warning, or letting an employee believe the interviewing attorney represents them personally, creates an ethical problem under the applicable rules of professional conduct and gives the employee grounds to argue the privilege never covered the conversation. The warning is given at the start of every interview, not once at the outset of the investigation.
Work Product Protection for Notes and Reports
Interview notes, memoranda, and any final investigative report counsel prepares carry a second, separate protection: the work product doctrine codified at Federal Rule of Civil Procedure 26(b)(3), which shields materials prepared in anticipation of litigation from discovery absent a substantial-need showing. Upjohn extended that protection specifically to an attorney's selection and notes of witness statements, since they also reveal counsel's mental impressions. What is not protected is the underlying fact pattern itself. What a witness saw and what the billing records show remain discoverable through the ordinary audit process, a civil investigative demand, or a grand jury subpoena, regardless of how carefully the investigation that first uncovered them was run.
Privilege protects how counsel investigated the facts. It does not protect the facts themselves, which stay reachable through the ordinary audit and subpoena process no matter how the internal investigation was structured.
Common Ways Investigations Waive Privilege
Voluntary disclosure of the investigative report itself, rather than the underlying facts, to an auditor or a regulator is the most common waiver. The Department of Justice's Justice Manual at section 9-28.720 makes clear that cooperation credit is not conditioned on waiving privilege or work product protection, and that prosecutors are directed not to request counsel's interview notes. What earns credit is timely disclosure of the relevant facts, not the privileged analysis built around them. Mixing operational advice into the same communications as legal advice dilutes the privilege, since only the legal-advice component is protected, and circulating a draft report to personnel with no role in the legal decision does the same. If a grand jury subpoena or a DOJ target letter arrives while the internal investigation is still underway, the posture changes immediately, and the same discipline that protected the investigation record has to extend to how the practice responds.
Why Early Legal Counsel Is Critical
It is critical that providers promptly retain experienced healthcare defense counsel before starting an internal investigation into a compliance issue, a whistleblower complaint, or an audit finding. Early legal intervention can protect the provider's rights, structure the investigation so privilege and work product protection actually attach, avoid inadvertent admissions during witness interviews, and allow counsel to communicate with regulators on the provider's behalf. Delaying representation, or letting compliance staff conduct the early interviews alone, can permanently forfeit the protections the provider needed most.
How Health Law Alliance Can Help
Health Law Alliance has handled 5,000+ matters across healthcare regulatory and fraud defense over 25+ years, including internal investigations structured to preserve privilege from the first interview through any resulting government inquiry. If your practice needs to investigate a compliance issue internally, contact Health Law Alliance's healthcare fraud defense attorneys for a free, confidential consultation before the first interview takes place.
