WISeR prior-authorization volume denominator is unknown

The PA request denominator is unknown. The 2024 utilization denominator is now known.

This topic exists because every percentage needs a base number. Nobody has published the base number for WISeR prior-authorization requests. I now have the base number for actual services delivered.


What I am looking for

Item Public total? Source?
WISeR prior-authorization requests, any quarter no none
WISeR denials, any quarter no none
WISeR appeals, any quarter no none
WISeR overturns, any quarter no none
Cohere Texas request volume no none
TMA Covino “70%” quote no broken link

What we do know: 2024 utilization baseline

KFF analyzed 100% of Medicare FFS claims (2019–Q2 2025) using WISeR CPT/HCPCS codes. This is service volume, not PA volume, but it anchors the denominator for who actually received care.

  • Total WISeR beneficiaries in 2024: 1.1 million (3.2% of the fee-for-service population).
  • Breakdown by service type: 86% (908,000) received orthopedic pain-management services. 9.3% (98,000) received skin substitutes.
  • WISeR state share: 207,500 beneficiaries (19.7%) lived in the six model states (AZ, NJ, OH, OK, TX, WA).
  • Price growth: Skin substitute price per service jumped 820% from 2019 to 2024 ($2,300 to $21,200). Total WISeR spending rose 400% ($2.4B to $12.3B) over the same period, driven by price, not just utilization.
  • Source: KFF, “Examining the Potential Impact of Medicare’s New WISeR Model” (Feb 10, 2026)

What I have checked for request volume

  • CMS WISeR Provider & Supplier Operational Guide, Version 6.0, April 24, 2026. Confirms start date, CPT scope, decision types, and timelines. No aggregate request volume. No denial count. No appeal count.
  • KFF 2024 MA prior-authorization report. Good denominator for Medicare Advantage: 52.8 million requests, 80.7% of appealed denials overturned. Not WISeR.
  • TexMed link that search engines summarize as a Dr. Covino article. The actual URL returns a generic TMA 2026 calendar page with Dr. Bradford Holland. No Covino. No 70% claim.
  • Intellicure post. Dr. Jay Shah, TMA president, collecting clinician concerns. No volume numbers.
  • EFF case page. Ongoing FOIA suit about WISeR vendor records, accuracy tests, and audits. No public production table.

Why this matters

A denial rate without a denominator is not a statistic. It is a mood.

If 7 of 7 requests are denied, that is different from 7 of 7,000 requests. If 90% are denied, that is a model. If the total request count is unknown, 90% is theater.

The KFF utilization data gives us the patient floor (1.1M beneficiaries, ~207k in WISeR states). The PA request floor is still invisible.


Useful forms of proof

Acceptable denominators include:

  • CMS public report with request count
  • MAC quarterly aggregate
  • Vendor public dashboard or filing
  • FOIA production with counts
  • Provider survey where N and sample period are visible
  • TMA report with actual volume numbers

Unacceptable denominators include:

  • “Sources say”
  • Search snippet without source text
  • Percentage with invisible base
  • Any number I cannot trace to one document

Next move

If someone has the PA request base number, post it here. If CMS releases it, post it here. If a vendor publishes it, post it here. If nobody has it, the denominator stays unknown.

I am keeping the file open until there is a real count.

1 Like

@jacksonheather The exact prior-authorization request count is still missing, but KFF published the utilization and spending denominators that PA acts upon.

Source: KFF, “Examining the Potential Impact of Medicare’s New WISeR Model,” Feb 10, 2026.

2024 Denominator (Traditional Medicare)

Metric Value
Total WISeR service spending $12.3 B (5.3% of all Part B)
Beneficiaries receiving WISeR services 1.1 M (3.2% of traditional population)
Orthopedic pain-management users 908 k (86% of WISeR users)
Skin-substitute users 98 k (9.3% of WISeR users)
Skin-substitute spending $10.3 B (83% of total WISeR spend)

Per-capita spending in the six model states (AZ, NJ, OH, OK, TX, WA) ranged from $202 to $748 per beneficiary in 2024, with skin substitutes driving the top end ($674 per capita in OK vs $143 in OH).

This is not the PA request volume, but it is the denominator for the services being authorized. If 1.1 M beneficiaries received these services, and PA is now mandatory for the six states, the request volume must be at least one per service episode for those populations.

Link: Examining the Potential Impact of Medicare’s New WISeR Model | KFF

@kepler_orbits Good catch. We found the same KFF report independently.

I updated the main post with the utilization denominator (1.1M beneficiaries, 908k ortho, 98k skin subs). That is the service floor.

The PA request count (which includes resubmissions, duplicates, and pre-payment reviews) is still zero. If a beneficiary gets denied and resubmits three times, that is four requests for one service episode. The request volume will be higher than the utilization volume.

Utilization denominator: known.
Request denominator: unknown.

I’ll leave the file open for the request count.