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Office of the State Auditor - Annual Medicaid Report 2026 - Completed Audits

During this reporting period, OSA released four audit reports on MassHealth’s compliance with state and federal laws, regulations, and other applicable authoritative guidance. These reports identified an estimated $8,451,554 in potential cost savings and provided several recommendations to strengthen internal controls and oversight in MassHealth’s program administration. The following is a summary of our Medicaid audit work between March 2025 and the end of February 2026.

1. Office of Medicaid (MassHealth)—Review of Claims Submitted by Dental Arts Lawrence: Dr. Snehal Pingle, Dr. Yuan Fu Shek, and Dr. Ke Wang

  
Audit Number2023-1374-3M3
Audit PeriodJuly 1, 2019 through June 30, 2023
Issue DateApril 2, 2025
Number of Findings2
Number of Other Matters1
Number of Recommendations3
Total Dollar Amount of Improper Billings$215 (estimated)
MassHealth Recouping PaymentsNo

Background and Reason for Audit

The purpose of this audit was to determine whether Dr. Snehal Pingle, Dr. Yuan Fu Shek, and Dr. Ke Wang properly billed MassHealth for dental services and maintained documentation in members’ dental records to support these services. This audit was initiated as the result of a referral from OSA’s Bureau of Special Investigations. The Bureau of Special Investigations is charged with investigating potentially fraudulent claims or wrongful receipt of payment and/or services from public assistance programs. OSA conducted this audit as part of our ongoing independent statutory oversight of the state’s Medicaid program.

Summary of Findings and Recommendations

OSA reported two findings in this audit:

  1. Dr. Snehal Pingle, Dr. Yuan Fu Shek, and Dr. Ke Wang of Dental Arts Lawrence did not always maintain adequate dental records.
  2. Dr. Snehal Pingle, Dr. Yuan Fu Shek, and Dr. Ke Wang of Dental Arts Lawrence billed and were paid for unallowable tooth restorations.

OSA’s recommendations to Dental Arts Lawrence were as follows:

  1. Dr. Snehal Pingle, Dr. Yuan Fu Shek, and Dr. Ke Wang of Dental Arts Lawrence should implement monitoring controls to ensure that all claims are properly submitted to MassHealth.
  2. Dental Arts Lawrence should work with MassHealth to determine the number of claims that are unallowable and should enter into an appropriate program of financial recovery for the Commonwealth.
  3. MassHealth should update its system to ensure that dental restorations are paid for appropriately.

MassHealth’s Comments

MassHealth agreed with OSA’s recommendations for both findings and stated that it plans to review OSA’s sample of dental claims to determine whether there are any claims that constitute overpayments. In addition, MassHealth plans to review its systems to determine whether updates are needed to further ensure that dental restorations are paid for in accordance with MassHealth regulations. If MassHealth determines that updates are necessary, MassHealth anticipates updating the applicable systems.

Dental Arts Lawrence’s Comments

Regarding Finding 1, Dental Arts Lawrence disagreed with OSA and noted that, in its opinion, the documentation was inadequate due to a software error.

Regarding Finding 2, Dental Arts Lawrence disagreed with OSA and stated that, in its opinion, the exception was due to an error with MassHealth’s billing system.

Other Matters

OSA also reported one issue in its “Other Matters” section for this audit:

  1. Dental Arts Lawrence had a very high billing and re-billing rate for restorations.

OSA’s recommendation for Dental Arts Lawrence was as follows:

  1. Dental Arts Lawrence should work with MassHealth to determine whether these restorations were medically necessary.

Regarding this issue in the “Other Matters” section, Dental Arts Lawrence disagreed with OSA, stating that, in its opinion, the frequency of restorations was due to poor oral hygiene of the patients in its community. Additionally, Dental Arts Lawrence stated that some of its patients take advantage of the Medicaid program by seeking frequent treatment rather than making improvements to their hygiene.

2. Office of Medicaid (MassHealth)—Review of Transportation Services

  
Audit Number2024-1374-3M2
Audit PeriodJuly 1, 2020 through June 30, 2023
Issue DateMay 8, 2025
Number of Findings2
Number of Other Matters0
Number of Recommendations3
Total Dollar Amount of Improper Billings$1,669,882
MassHealth Recouping PaymentsYes

Background and Reason for Audit

The purpose of this audit was to determine whether MassHealth ensured that its broker1 process provided equal opportunity to contracted transportation providers, whether transportation services were properly authorized and documented in accordance with Sections 407.421(D) and 450.205(A) of Title 130 of the Code of Massachusetts Regulations (CMR), and whether Criminal Offender Record Information checks were consistently completed and documented for transportation drivers in accordance with 130 CMR 407.405(B). This audit was conducted as part of OSA’s ongoing independent statutory oversight of the state’s Medicaid program.

Summary of Findings and Recommendations

OSA reported two findings in this audit:

  1. MassHealth paid for nonemergency transportation services when there was no qualifying medical service on the same day.
  2. MassHealth paid for nonemergency transportation services that were not properly documented.

OSA’s recommendations to MassHealth were as follows:

  1. MassHealth should ensure that brokers maintain documentation for all transportation services provided to MassHealth members.
  2. MassHealth should work with the brokers to determine the amount overpaid for nonemergency transportation services.

MassHealth’s Comments

MassHealth agreed with OSA’s recommendation and stated that brokers have implemented software to provide a more thorough audit trail for the transportation services they facilitate. MassHealth also stated that the issue of transportation services paid without a corresponding qualifying medical service on the same day could be due to billing errors by the providers or bundled services that take place over a period of days.

MassHealth also stated that it will review OSA’s findings to determine whether there were any overpayments relating to the transportation services.

3. Office of Medicaid (MassHealth)—Review of Durable Medical Equipment (DME) Providers

  
Audit Number2024-1374-3M3
Audit PeriodJanuary 1, 2021 through December 31, 2023
Issue DateOctober 30, 2025
Number of Findings3
Number of Other Matters0
Number of Recommendations6
Total Dollar Amount of Improper Billings$580,650
MassHealth Recouping PaymentsN/A

Background and Reason for Audit

The purpose of this audit was to determine whether MassHealth monitored billing and authorization practices for DME providers and prescribers and monitored various death records to ensure that DME was not ordered for or prescribed to members who had already passed away.

The audit was conducted as part of OSA’s ongoing independent statutory oversight of the state’s Medicaid program. Several of our previously issued audit reports disclosed weaknesses in MassHealth’s claim processing system as well as improper billing practices by MassHealth providers, which identified millions of dollars in potentially improper payments. As with any government program, public confidence is essential to the success and continued support for public expenditures, such as the state’s Medicaid program. Our audit was designed to identify issues that will help improve the Medicaid program so that taxpayers know that their dollars are spent prudently and that there is a system of continuous improvement to support improved efficiency and service over time.

Summary of Findings and Recommendations

OSA reported three findings in this audit:

  1. MassHealth paid an estimated $521,526 for DME that could not be verified as having been ordered by an eligible provider.
  2. MassHealth paid $31,724 for DME that was ordered by providers who were excluded from participating in Medicaid.
  3. MassHealth paid providers $27,400 for DME that was ordered for members who were deceased.

OSA’s recommendations to MassHealth were as follows:

  1. MassHealth should not pay claims for DME that do not have a licensed provider’s name and national provider identifier on the associated DME order form.
  2. MassHealth should investigate the claims identified in this finding and recoup any overpayments that it deems appropriate.
  3. MassHealth should develop procedures that deny any claims that are ordered, referred, or prescribed by providers who are excluded from participating in Medicaid or providers whose medical licenses are suspended or terminated.
  4. MassHealth should find a way to address the lag that occurs between a member’s death and when that death is entered into the Medicaid Management Information System. MassHealth should also use additional data sources to confirm whether a member is deceased.

MassHealth’s Comments

Regarding Finding 1, MassHealth agreed with OSA’s recommendation, stating that it suspended a system edit relating to the submission of DME claims in March 2020 to ease the administrative burden for providers. MassHealth noted that it reinstated the system edit in July 2023, and this system edit should prevent claims from being accepted without an accompanying national provider identifier. MassHealth also stated that it plans to investigate the claims identified in the finding and recoup overpayments.

Regarding Finding 2, MassHealth agreed with OSA’s recommendation and referenced the same system edit mentioned above, stating that it believes that this system edit will allow it to deny payment to providers who are suspended or terminated. Additionally, MassHealth noted that it offers trainings and meetings to providers to educate them on compliance with federal and state law. Finally, MassHealth noted that it audits two to three AFC and GAFC providers monthly to review documentation and that it issues sanctions when necessary.

Regarding Finding 3, MassHealth agreed with OSA’s recommendation and noted that some of the claims highlighted in the finding had already been flagged by MassHealth during its postpay recovery process. MassHealth emphasized that due to the delay in how it receives information about deceased members, it relies on the postpay process to recoup payments for its members who had passed away.

4. UMass Memorial Health Care

  
Audit Number2024-4601-3H
Audit PeriodJuly 1, 2020 through June 30, 2023
Issue DateNovember 4, 2025
Number of Findings2
Number of Other Matters1
Number of Recommendations5
Total Dollar Amount of Improper Billings$6,200,807
MassHealth Recouping PaymentsN/A

Background and Reason for Audit

The purpose of this audit was to determine the following:

  • whether UMass Memorial Health Care (UMMH) spent grant funds from EOHHS in accordance with Chapter 102 of the Acts of 2021 and its Payment Agreement with EOHHS;
  • whether UMMH spent grant funds it received from the Massachusetts Emergency Management Agency in accordance with its associated grant applications; and
  • whether UMMH provided inpatient maternity services to MassHealth members in accordance with MassHealth and Department of Public Health (DPH) regulations, specifically, whether (a) medical records for inpatient maternity services were maintained in accordance with 130 CMR 450.205(A); (b) inpatient maternity services were provided by registered nurses in accordance with 105 CMR 130.616(F) and best practices established by the Association of Women’s Health, Obstetric and Neonatal Nurses; and (c) births were reported to DPH within 10 days, as required by 105 CMR 305.020.

Summary of Findings and Recommendations

OSA reported two findings in this audit:

  1. UMMH could not provide accounting records to document how it spent $6.2 million in grants from EOHHS.
  2. UMMH could not account for when or if it had reported births occurring in its hospitals to DPH.

OSA also reported one issue in its “Other Matters” section for this audit:

  1. UMMH did not ensure that all users of its electronic health records information system completed information security awareness training.

OSA’s recommendations to UMMH were as follows:

  1. UMMH should maintain detailed accounting records and maintain an audit trail to show when state or federal grant revenue is received and what expenses are incurred in association with grant revenue. This is a requirement of the grant agreement executed by UMMH with the Commonwealth.
  2. When accepting taxpayer-funded grants from the Commonwealth, UMMH should use those funds to invest in maintaining operations of essential services. For example, UMMH should have considered allocating these funds to maternity care or other critical healthcare services, rather than spending these taxpayer-funded grants to reimburse itself for UMMH’s prior year expenditures, such as employee bonuses.
  3. UMMH should reassess the need for maternity care in the communities served by HealthAlliance Clinton Hospital and work toward mitigating health disparities caused by a lack of access to maternity care in that region.

MassHealth’s Comments

Regarding Finding 1, MassHealth agreed with OSA’s first recommendation that maintaining accounting records was a requirement of its grant agreement with UMMH. MassHealth noted that there were limited restrictions for the use of the $6.2 million awarded by MassHealth to UMMH, and that MassHealth had no evidence suggesting that UMMH used the grant funds inappropriately.

Regarding Finding 2, MassHealth agreed with OSA’s recommendation that UMMH must document births and report them to DPH within 10 days, in accordance with DPH regulations. MassHealth also did not offer comment on whether UMMH has existing internal controls to ensure compliance with birth reporting requirements.

Regarding the issue in the “Other Matters” section, MassHealth agreed with OSA’s recommendation that UMMH must abide by Health Insurance Portability and Accountability Act (HIPAA) requirements, including cybersecurity requirements.

UMMH’s Comments

Regarding Finding 1, UMMH disagreed with OSA, stating that accounting records were not required to report to EOHHS as part of the grant agreement, and it believed that it provided all requested documents to OSA. UMMH stated that it believes it is outside OSA’s authority to recommend how UMMH spends the grant funds and that it believes that using the funds to reimburse itself for bonuses previously paid to employees was permissible under the grant agreement with EOHHS.

Regarding Finding 2, UMMH disagreed with OSA, stating that all births relating to the finding had been reported to DPH via encrypted messages that were no longer available due to personally identifiable information protection. UMMH also stated that the paper birth logs used to internally track births were disposed of in bins per HIPAA regulations and reiterated that it properly maintained all documentation.

Regarding the issue in the “Other Matters” section, UMMH disagreed with OSA’s recommendation, stating that it provided evidence of cybersecurity training for all sampled users.

1.    A transportation broker is a regional transit authority that manages nonemergency medical transportation for people who need assistance getting to and from their healthcare appointments. A transportation broker matches transportation requests with the right vehicles, the right routes, and the right schedule to ensure members arrive safely and on time.

Date published: February 25, 2026

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