A federal jury has convicted a Murfreesboro nurse practitioner of pumping out enormous quantities of opioid painkillers through a small Carthage pain clinic, in a case prosecutors say helped fuel street diversion and put patients in serious danger of overdose.
Heather Marks, 43, was found guilty of conspiracy and eight counts of illegally distributing controlled substances after repeatedly prescribing high volumes of opioid medications to clinic patients. Authorities say those prescriptions did not just stay with patients - they poured into the community.
According to the U.S. Department of Justice, Marks was a DEA-licensed advanced registered nurse practitioner who wrote controlled-substance prescriptions at Lifeforce Pain and Wellness in Carthage. From September 2016 through May 2018, federal officials say she personally prescribed nearly a million opioid pills, including oxycodone and oxymorphone, to almost 1,000 Lifeforce patients.
As reported by WSMV, jurors convicted Marks of conspiracy to illegally distribute controlled substances along with eight separate counts of illegal distribution. She is scheduled to be sentenced on September 1, 2026, and faces a statutory maximum of 20 years in prison on each count. A federal judge will ultimately decide her punishment.
Investigation and prosecution
Federal agents from the FBI, the Department of Health and Human Services Office of Inspector General and the Tennessee Bureau of Investigation spent years digging into the clinic, according to the U.S. Department of Justice. The announcement named Assistant Attorney General Colin M. McDonald and U.S. Attorney Braden H. Boucek among the officials overseeing the case and noted that trial attorneys from the Criminal Division's Fraud Section handled the prosecution.
Why it matters in Tennessee
While Tennessee has tightened prescribing practices in recent years, prescription opioids still have a deadly footprint in the state. The Tennessee Department of Health controlled substance monitoring report shows that overall opioid prescribing and doctor-shopping have declined since 2017. Even so, it found that pain relievers were involved in about 11.7% of overdose deaths in 2023 and that many people who died had received controlled substances shortly before their deaths.
Legal outlook
Marks now faces multiple federal counts with steep maximum penalties, although her eventual sentence will be shaped by the U.S. Sentencing Guidelines and other factors the court must weigh. Local reporting by WSMV notes that prosecutors see the case as part of an ongoing push to crack down on prescription opioid diversion, especially involving rural pain clinics.
The conviction is likely to intensify scrutiny of small pain practices in rural Tennessee and add momentum to enforcement strategies that combine criminal charges, state prescription monitoring and public health interventions. All eyes will be on Marks's September sentencing, the next key moment in a case that federal officials say exposed large-scale diversion stemming from a single clinic.
