MDS and PDPM Fraud: When Unsupported Assessments Change Nursing Home Payment

PDPM fraud uses knowingly false resident assessments to increase Medicare payments to skilled nursing facilities. The diagnosis, function score or nursing need recorded on the MDS can change what the facility earns for the stay. For an assessment coordinator, nurse or coder, the concern may begin with a request to change something the clinical record does not support. Medicare and the taxpayers who fund it pay for needs the record does not support. The important connection runs from what staff observed, through what the facility submitted, to what Medicare paid.

What PDPM Changed

The Patient Driven Payment Model replaced the Resource Utilization Group IV system, RUG-IV, for covered Medicare Part A skilled nursing stays on October 1, 2019. Under the earlier system, therapy-minute thresholds helped determine payment. Under PDPM, resident characteristics and clinical needs determine the payment groups. The financial importance of an assessment moved with the rules.

CMS describes PDPM as a model for classifying residents for payment. It has five components adjusted for resident needs: physical therapy, occupational therapy, speech-language pathology, nursing and nontherapy ancillary services. A separate component covers costs outside those resident-specific classifications.

Medicare pays the facility a bundled rate that covers room, board and many clinical services, including therapy. The facility’s contract determines what an outside therapy supplier receives. The assessment therefore affects the facility’s revenue even when another business provides the care.

Does MDS and PDPM Fraud Also Affect Medicaid?

False MDS entries can also affect Medicaid payment where a state uses resident assessments to set nursing home rates. Minnesota’s payment rules phase PDPM into its Medicaid rates alongside RUG-IV. We trace the assessment into the state’s payment method as well as the Medicare claim.

What Are the Medicare Billing Guidelines for Skilled Nursing Facility Care?

A Medicare Part A skilled nursing facility claim must meet skilled-care and coverage requirements, and its payment classification must follow the resident assessment. The Minimum Data Set supplies the clinical inputs used to assign component groups. Those groups feed the HIPPS code reported on the claim.

The CMS claims manual connects the HIPPS classification, covered days and assessment reference date to the bill. The payment calculation applies component rates, resident classifications and applicable day adjustments. A diagnosis entry matters financially when it changes that calculation.

The practical chain is the resident’s condition or service, the MDS response, the component group, the HIPPS code, the claim and the payment. We work through the whole chain with an insider. A coding change shows what the facility submitted. The payment record shows what Medicare actually paid.

The assessment is a team product. A registered nurse conducts or coordinates it. Nurses and aides contribute observations, therapists assess function and treatment needs, and practitioners supply diagnoses and orders. Coding and billing connect that clinical record to the payment classification.

What Is a Red Flag for Health Care Fraud?

For MDS and PDPM billing, a red flag is a payment-driving assessment entry that conflicts with the resident’s clinical record. A request to change that entry becomes particularly useful evidence when it identifies who wanted the change and what payment result they wanted.

Diagnoses and Speech-Language Pathology

The primary diagnosis helps set the clinical category for physical and occupational therapy. Speech-language pathology classification draws on such characteristics as neurological conditions, SLP-related diagnoses, cognition, swallowing and a mechanically altered diet. These are different routes into payment, with different supporting records.

The clinical question is whether the coded condition was active and affected the resident’s functioning or care during the relevant assessment period. An SLP evaluation, nursing observations and the physician’s notes can show how the condition actually affected the resident. The date of the assessment matters alongside the diagnosis name.

Section GG and Usual Function

Section GG records self-care and mobility performance. The CMS assessment manual calls for usual performance, with the admission assessment reflecting the resident’s baseline before benefiting from treatment. Notes about the help a resident needed to eat, transfer or walk give the function entries their clinical basis.

We trace a changed assistance level into the physical therapy, occupational therapy or nursing calculation it affects. Physical and occupational therapy use the same function score. Nursing uses a different calculation, so we follow the particular change through to its payment effect.

Nursing and Depression

Nursing classification uses clinical conditions, services, function and, in applicable groups, depression. In those groups, the mood interview, clinical evaluation and nursing record affect the support for the payment classification. Who recorded the responses and what the clinical evaluation found are both worth understanding when a depression entry changes payment.

Nontherapy Ancillary Services

The NTA component assigns weights to specified conditions and services. Its payment is three times the ordinary base case-mix amount on covered days one through three. An unsupported condition or treatment can therefore affect a particularly valuable part of the stay.

An entry for intravenous medication raises a concrete question about the treatment the resident needed and received. In the Pinnacle audit discussed below, reviewers questioned an NTA classification because the documented treatment did not require intravenous medication.

Therapy Still Follows Clinical Need

Therapy records still matter under PDPM. Combined group and concurrent therapy is limited to 25% of each discipline’s minutes over the Part A stay. Clinical need continues to control the services provided. A payment classification describes the resident’s needs. The therapy record shows the care delivered. We examine that gap with the clinician who knows what the resident needed.

Interrupted Stays Can Change the Payment Schedule

An interrupted stay preserves the existing payment schedule when a resident resumes covered care at the same skilled nursing facility within the interruption window. That window runs from the first non-covered day through the third consecutive non-covered day and also applies when a resident leaves Part A coverage but remains in the facility. A later return, or admission to a different facility, starts a new payment stay. That makes the discharge date, return date and facility identity financially important.

An optional Interim Payment Assessment changes payment beginning on its assessment reference date while the existing day-factor schedule continues. A changed assessment and a new payment stay have different effects on the bill.

For an insider concerned about a fabricated discharge or return date, we connect the admission and discharge records to the payment schedule used. The question is whether the dates submitted caused Medicare to pay for a new stay when the actual stay continued.

What the Pinnacle Audit Shows

The HHS Office of Inspector General’s November 2025 audit of Pinnacle Multicare Nursing and Rehabilitation Center tested assessment classifications against clinical records at a Bronx facility. The auditors said data analysis had identified a substantial increase in its Medicare reimbursement after the payment model changed. Independent medical reviewers then examined the sampled claims and supporting records.

99 of 100

sampled claims did not meet Medicare payment requirements, according to OIG.

HHS Office of Inspector General, Pinnacle payment audit, November 2025

Extrapolating from the sample, the Inspector General recommended a refund of $31,227,884.

One resident’s nursing classification included moderate depression. The physician’s note reported no depressed mood, and the auditors found no support that the facility had investigated the mood distress or communicated it to the physician. Medicare paid for a classification the clinical record did not support.

In another claim, an aphasia diagnosis helped drive speech-language pathology payment. The auditors found that the record did not establish an active diagnosis affecting the resident’s functioning or care.

The audit also found claims for residents who did not require skilled nursing services. The problem reached beyond which payment group the facility chose to whether the resident needed the skilled care Medicare was billed for.

Some claims had multiple component coding errors. The audit’s method compared the billed HIPPS result with the result supported by the medical record. That is the connection an assessment insider can help us examine.

What Evidence Is Needed to Prove Fraud?

Evidence for an MDS fraud case connects a false assessment entry to payment and to the people who knew about or directed it. We compare the original and changed MDS, assessment reference dates, supporting clinical notes, contributor information, HIPPS classifications, claims and payment records. Instructions about changing the assessment help explain how the discrepancy arose.

Each person sees a different part. The nurse knows what the care notes describe. The therapist knows the evaluation and the assistance observed. The assessment coordinator knows which responses changed and who contributed them. The coder or billing employee can connect the classification to the claim. Together, those records let us test the account against the money.

MDS Coordinator Told to Change Assessment After Medicare Claim Submitted

An MDS coordinator told to change an assessment after a Medicare claim was submitted may know both the original entry and the reason someone wanted it changed. We examine the request, the clinical support available for that assessment period and the claim affected by the change.

CMS’s correction policy requires the MDS to reflect the resident’s status as of the assessment reference date. A later change in the resident’s condition cannot rewrite what was true then.

Those requirements give the comparison a clear focus: what did the resident’s record support at the time, what changed later, and what did the facility tell Medicare? We connect the original submission, the correction and the payment history with the person who understands why the change was requested.

Nursing Home Assessment Signed by Someone Who Did Not Examine Resident

A nursing home assessment signed by someone who did not examine the resident calls for a close look at the particular signature and the work it certifies. CMS assigns different responsibilities to the people completing assessment items and the nurse certifying that the assessment is complete.

Each contributor signs for the portions they completed and their accuracy. The RN assessment coordinator certifies completion.

We examine whose work the signature represents, what observations or interviews support it, and how the signed assessment reached the claim. That lets the person who knows the resident explain exactly where the submitted account departed from the care record.

When the Payment Target Drives the Assessment

A PDPM fraud inquiry asks who knew an assessment was false and how that representation affected Medicare payment. The instruction to change the record, the clinical facts available at the time and the resulting bill belong together. That is where an insider’s knowledge adds something a payment audit alone cannot supply.

Historical therapy cases show why the instruction matters. Life Care Centers of America agreed to a $145 million settlement announced in October 2016 over allegations involving unnecessary rehabilitation therapy. The government’s complaint described a manager directing staff around a predetermined reimbursement category:

That allegation concerned the earlier RUG system. It shows the value of an internal instruction that explains why the assessment took the shape it did. Under PDPM, we follow that question through the resident characteristics used for payment: who chose the entry, what supported it and what the facility earned from it.

A whistleblower case under the False Claims Act can pay 15% to 30% of what the government recovers.

When You Know Why the MDS Changed

If you know who directed an unsupported assessment change, speak with our whistleblower experts about the entry and the payment it changed. We work beside you to build your strongest PDPM fraud case from the clinical record, the assessment history and the decisions behind the claim. We bring in healthcare fraud whistleblower lawyers who understand nursing home reimbursement and stay with you through the case.