A Bowie, Maryland nurse pleaded guilty Thursday to conspiracy to commit health care fraud, admitting that she participated in a scheme prosecutors say billed D.C. Medicaid for children's mental health services that were inflated, fabricated, or never provided. Vera Nyiawung, 34, worked first as a community support worker and later as a supervising nurse for a D.C. Medicaid provider authorized to deliver mental health rehabilitative services to children and adolescents. Prosecutors say claims tied to her conduct caused more than $550,000 in losses.
Nyiawung joined the provider in January 2023 and later reviewed employees' encounter notes before they were submitted for reimbursement, according to DailyVoice.com. Prosecutors allege she approved notes that contained inflated or recycled information, contributing to claims for services Medicaid did not owe. She entered her plea before U.S. District Judge Emmet G. Sullivan and faces up to 10 years in prison, restitution and a fine of up to $250,000, the outlet reports.
How the Billing Scheme Worked
The case centers on claims that records overstated the time and frequency of services. Prosecutors say some workers recorded hourlong telephone sessions when their calls lasted only minutes, while information from a single telehealth encounter was used to create additional notes for services that were not provided.
In related allegations, workers were instructed to record three hours for diagnostic assessments regardless of the time spent with patients; that practice was later changed to one hour, according to DailyVoice.com. Prosecutors also allege staff were encouraged to claim the maximum billable time without regard to the actual length or medical necessity of a contact, including submitting durations just under 60 minutes.
A Wider Federal Crackdown
Nyiawung's plea is part of a broader federal investigation into alleged fraud involving Mental Health Rehabilitative Services in the District. The Justice Department's announcement described allegations involving padded call lengths, recycled notes and Medicaid billing for care that never happened. The case materials describe the investigation and prosecution. Assistant U.S. Attorneys Diane Lucas and Sarah Ranney are leading the prosecution.
The Justice Department is pursuing the prosecution. Nyiawung is one of several people connected to the investigation. Said Nassor, a 46-year-old community support worker from Silver Spring, pleaded guilty Aug. 26 to health care fraud conspiracy that caused more than $250,000 in Medicaid losses. Court filings in that case allege that an undercover FBI employee posing as a patient was billed for three telehealth sessions that did not occur and that a co-conspirator claimed 701 telehealth hours across six patients despite records showing 172 minutes of contact.
Not the First Case, and Not the Last
The allegations follow an August 2024 indictment of six people, including former mental health provider CFO Omolere Omomowo, in a separate $10 million D.C. Medicaid fraud case involving Assertive Community Treatment programs, according to the Department of Justice. That case alleged systemic overbilling for high-intensity mental health care. Separately, reimbursement rates for some youth behavioral-health services, including Child-Parent Psychotherapy and Trauma-Focused CBT, rose 3.5% under the CMS Market Basket Index after the D.C. Department of Health Care Finance updated its Medicaid Fee Schedule effective January 2025, according to the agency's transmittal notice.
The D.C. Office of the Inspector General's Medicaid Fraud Control Unit conducts investigative and prosecutorial work. On the day of Nyiawung's plea, federal prosecutors also obtained a 24-month prison sentence and a $3.4 million restitution order against D.C. dentist Steven A. Price, who was convicted after a six-week federal trial of submitting false Medicaid procedure claims. Separately, Hoodline reported that $820 million was paid to home healthcare firms facing termination proceedings over fraud allegations, within $1.47 billion in D.C. home healthcare Medicaid funding from 2018 through 2024: Hoodline's report cited those figures as part of the broader oversight challenge.
How D.C. Tracks Medicaid Fraud
The current prosecutions operate within a longstanding program-integrity system. According to the D.C. Office of the Inspector General, its Medicaid Fraud Control Unit conducts investigative work. Program-integrity work includes audits, investigations and reviews intended to determine whether billed services were delivered and met program requirements.
How providers and claims are monitored
D.C. rules address the Mental Health Rehabilitation Services program, including provider certification and services, according to D.C. Department of Behavioral Health regulations. The article also discusses Medicaid enrollment for direct service providers. The agency says program-integrity work includes audits, investigations and reviews to identify and recover improper payments.
At the national level, claims monitoring is another program-integrity tool discussed here. That discussion does not establish that those methods were used in Nyiawung's case.
