LA County Fraud: 5 shocking healthcare scams in Los Angeles

Los Angeles remains the center of the most aggressive enforcement actions against healthcare fraud this year. Federal and state investigators have targeted prescription schemes, sham hospice operations, and billing rings that together exceed $600 million in alleged false claims to Medicare and Medi-Cal. The pattern of arrests and indictments in 2026 shows both the scale of the problem and the coordination between agencies trying to stop it.

Prescription billing gone unchecked

Christina Mareik, also known as Christina Marie Sanchez Hernandez, faces charges tied to nearly $270 million in Medi-Cal claims for high-cost drugs. Authorities say more than $178 million was paid out before the scheme was disrupted. Mareik was arrested in June 2026 and released on a $100,000 bond pending arraignment.

The case formed part of a national takedown that charged 455 defendants for more than $6.5 billion in fraudulent claims across multiple states. In Southern California the focus stayed on prescription diversion and inflated billing that bypassed normal review. Local defendants like Mareik illustrate how individual operators can move large volumes before detection.

Medi-Cal officials have tightened prior-authorization rules since the arrests. Providers now face extra documentation for the same drugs that appeared in the Mareik claims. The adjustments aim to slow repeat submissions while investigators build the remaining case files.

Hospice fraud in the valley

Oren David Shachar, Abraham Shin, and Jeannie Choi were indicted in the same June action for allegedly operating hospice companies that billed Medicare roughly $27 million. Prosecutors added counts of conspiracy, health care fraud, and aggravated identity theft. The defendants are linked to addresses in Van Nuys, Corona, and Torrance.

Investigators claim patient identities were used without consent to support repeated claims for services that were never delivered. The hospice model allows higher daily rates than standard home health, which increases the payoff when documentation is falsified. Identity theft adds another layer of exposure for the people whose records were misused.

Defense attorneys have not yet filed detailed responses. The next status conference is expected after discovery materials are exchanged. In the meantime Medicare administrative contractors have flagged similar provider numbers for prepayment review.

Statewide ring dismantled

California Attorney General Rob Bonta announced in April 2026 that a separate hospice network had submitted $267 million in Medi-Cal claims for care that never occurred. Twenty-one individuals were charged across three criminal complaints. The operation centered on Los Angeles County facilities but drew patients from surrounding regions.

Bonta stated the activity was deliberate fraud rather than paperwork errors. The complaints describe repeated use of the same addresses, shared ownership structures, and rapid enrollment of patients who did not meet terminal illness criteria. No legitimate hospice services were documented in the sampled records.

State health officials have since suspended payments to the flagged provider numbers. The move prevents further payouts while the criminal cases proceed. Medi-Cal beneficiaries assigned to those agencies were transferred to other certified hospices.

Multiple arrests in April sweep

Federal agents executed arrests across Glendale, Artesia, Tarzana, and Simi Valley as part of coordinated actions labeled Operation Never Say Die. Eight people were taken into custody, including physicians, nurses, and psychologist Gladwin Gill along with his wife Amelou Gill. The cases involve roughly $50 to $60 million in alleged Medicare losses.

One hospice alone submitted more than $5.2 million in claims and received over $4 million before the investigation closed the pipeline. Agents found clusters of agencies operating from single buildings with overlapping staff and minimal patient census. These indicators matched the red-flag criteria used by state auditors.

Local hospitals and discharge planners received new guidance on verifying hospice eligibility. The instructions emphasize confirming physician narratives and avoiding automatic referrals to agencies under active review.

Systemic scale in county records

A March 2026 CBS News review of nearly 1,800 hospices operating in LA County found more than 700 exhibited multiple indicators of potential fraud. Some analysts placed the figure as high as 93 percent when applying state audit criteria. The same analysis noted a 1,500 percent increase in licensed hospice agencies over the previous decade.

Common markers include shared office space, low average daily census, and unusually high rates of patients discharged alive. These patterns allow operators to cycle beneficiaries through billing systems without delivering sustained end-of-life care. The volume of flagged agencies has prompted calls for stricter initial licensing reviews.

Estimates cited by observers place total alleged hospice and home-care fraud in the county near $3.5 billion. That figure reflects both paid claims and pending submissions still under investigation. State budget analysts have incorporated the exposure into Medi-Cal forecasting models.

Enforcement coordination across agencies

The June 2026 federal takedown and the April state actions overlapped on several provider networks. Joint task forces combined data from the Department of Justice, FBI, and California Department of Health Care Services. Shared spreadsheets allowed investigators to trace common ownership and billing patterns across cases.

Prosecutors have used parallel civil proceedings to freeze assets while criminal cases move forward. These steps aim to limit the ability of charged operators to relocate funds or open new entities under different names. Asset recovery remains a priority in the sentencing phase.

Defense counsel have requested additional discovery on how algorithms flagged certain claims. The government maintains the indicators were corroborated by witness statements and patient interviews. Hearings on those motions are scheduled for later this summer.

Impact on patients and taxpayers

Beneficiaries whose identities were used in the schemes face credit and insurance complications. Some have received collection notices for services they never received. Medi-Cal has established dedicated lines for affected members to dispute erroneous records.

Taxpayers ultimately cover the cost of fraudulent claims through higher program expenditures. The $267 million state case alone represents funds that could have supported legitimate hospice services or other covered benefits. Budget committees have asked for quarterly updates on recovery totals.

County supervisors have requested briefings on how licensing fees and oversight staffing levels will adjust. The goal is to reduce the time between application and on-site verification for new hospice providers.

Changes in billing oversight

Medicare administrative contractors have expanded prepayment review for hospice claims originating in Los Angeles County. Certain high-volume procedure codes now require additional documentation before payment is released. The policy mirrors steps taken after earlier prescription fraud waves.

State regulators are piloting real-time data matching between Medi-Cal enrollment files and death records. The system is intended to flag continued billing after a patient has passed. Early tests showed measurable drops in post-mortem claims from participating agencies.

Industry associations have circulated compliance checklists that emphasize accurate certification of terminal illness and proper discharge planning. Members report increased internal audits in response to the recent enforcement actions.

Outlook for remaining cases

Arraignments and plea negotiations are expected to stretch into 2027. Several defendants have indicated they will contest the charges rather than accept plea deals. Trial calendars in the Central District of California are already crowded with related healthcare matters.

Legislators have introduced bills that would increase penalties for aggravated identity theft in healthcare settings and require fingerprint-based background checks for hospice owners. Committee hearings are set for the fall session.

Recovery of funds will depend on asset liquidation and any restitution orders that survive appeals. Federal officials have stated they will continue joint operations with state partners as long as the data shows elevated risk in the county.

Next steps for oversight

Continued monitoring of hospice licensing and Medi-Cal claims data will determine whether the recent arrests produce lasting reductions in fraudulent billing. Agencies are tracking whether new applications drop or shift to neighboring counties. The results will shape budget requests for additional auditors and data analysts.