If you run a pain, spine, or orthopedic practice in Texas, Arizona, New Jersey, Ohio, Oklahoma, or Washington, four of your highest-volume procedures now require prior authorization under Original Medicare. CMS’s WISeR Model (Wasteful and Inappropriate Service Reduction) went live January 1, 2026; MACs began accepting requests January 5, and it applies to services furnished on or after January 15, 2026. The affected services are epidural steroid injections (excluding facet joint), electrical nerve stimulator implants, percutaneous vertebral augmentation, and percutaneous image-guided lumbar decompression. Standard decisions come back in 7 calendar days, expedited in 72 hours — and the review is being run by AI/ML contractors against the applicable MAC Local Coverage Determination (LCD). This post covers who’s in scope, the state-to-MAC map, and the documentation that actually gets a provisional affirmation.
What WISeR is (and what it isn’t)
WISeR is a CMMI payment-model pilot that reintroduces prior authorization to Original Medicare for a short list of services CMS flags as prone to overuse, fraud, or waste — roughly 17 procedures across the program. Until now, traditional Medicare paid these claims without an upfront authorization step; WISeR moves the review to before the service, the way commercial and Medicare Advantage plans already work.
Two honest caveats. First, this is a pilot, scheduled to run six performance years through December 31, 2031 — not a permanent rewrite of Medicare. Second, there is an active repeal effort in Congress (a FY27 WISeR repeal bill). None of that changes your 2026 obligation: the model is live and binding now, in these six states, for the listed procedures. Plan for it as the operating reality it is, while knowing its long-term future is genuinely uncertain.
Are you in scope? The six states and their MACs
WISeR is scoped by MAC jurisdiction. If your practice bills one of these Medicare Administrative Contractors, you’re in:
| State | MAC | Jurisdiction |
|---|---|---|
| Texas | Novitas Solutions | JH |
| Oklahoma | Novitas Solutions | JH |
| New Jersey | Novitas Solutions | JL |
| Arizona | Noridian Healthcare Solutions | JF |
| Washington | Noridian Healthcare Solutions | JF |
| Ohio | CGS Administrators | J15 |
The reason this matters beyond “am I in a WISeR state”: your documentation standard is set by your MAC’s LCD, not a single national rule. A Novitas LCD for epidural steroid injections in Texas and a Noridian LCD in Arizona can differ on specifics. Prepare against the LCD your contractor publishes, not a generic checklist you found online.
The four procedures in the first wave
The initial WISeR service list hits pain and spine squarely:
- Epidural steroid injections (ESIs) for pain management — facet joint injections are excluded. Note the LCDs generally cap ESIs at roughly four per rolling 12 months; exceeding that without justification is a fast denial.
- Electrical nerve stimulator implants — the implant procedures, including percutaneous and permanent placements.
- Percutaneous vertebral augmentation — vertebroplasty/kyphoplasty for vertebral compression fractures.
- Percutaneous image-guided lumbar decompression (PILD) — for lumbar spinal stenosis.
If these are staples of your schedule, WISeR isn’t an edge case — it’s a new step in front of a meaningful share of your Medicare volume.
The decision clocks you’re scheduling against
WISeR gives you two lanes:
- Standard review: 7 calendar days for a decision.
- Expedited review: 72 hours when a delay would seriously jeopardize the patient.
A provisional affirmation lets the claim proceed and be paid; a non-affirmation means you can resubmit with better documentation or proceed at risk of denial. The practical consequence is scheduling: a procedure booked inside a week now depends on a turnaround you don’t fully control. Practices that submit clean packets early keep their calendars intact. Practices that submit thin ones get non-affirmations, resubmit, and watch procedures slip — which is exactly how prior auth quietly erodes throughput.
The documentation checklist that earns a provisional affirmation
The single biggest predictor of a first-pass affirmation is whether the packet satisfies the LCD’s medical-necessity criteria without the reviewer having to ask. Build your packet against these, tuned to your specific MAC LCD:
- Imaging correlation. MRI or CT findings that match the level and pathology you’re treating (e.g., stenosis or a compression fracture consistent with the planned procedure).
- Failed conservative care. A documented, dated history of conservative treatment — physical therapy, medications, activity modification — with duration and outcome, not just a checkbox.
- Pain and function measures. Baseline pain scores and functional limitation, ideally with a validated instrument, so severity is on the record.
- Frequency compliance. For ESIs, confirm you’re within the LCD’s per-12-month cap and document the response to any prior injections.
- Provider attestation and correct coding. The ordering provider’s note tying it together, plus CPT/ICD-10 that map cleanly to the LCD’s covered indications.
- The right lane. Choose standard vs. expedited honestly, and file early enough that the 7-day clock doesn’t collide with the procedure date.
Miss any one of these and you’re not denied on the merits — you’re denied on the paperwork, which is worse, because the service was probably appropriate.
Where an agent helps
WISeR is, before anything else, a documentation-assembly and status-tracking problem under a clock — which is precisely the substrate Kaira’s prior-auth workflow is built on. It’s designed to help assemble LCD-compliant PA packets — pulling the imaging correlation, conservative-care history, and pain/function measures the LCD asks for into one submission — and to track authorization status through the WISeR decision window, so a 7-day standard or 72-hour expedited request doesn’t fall through the cracks between submission and a booked procedure. Every request is tracked from draft to decision, tagged by payer and procedure, so you can see what’s pending, what affirmed, and what needs a resubmission before it threatens the schedule.
To be precise about what that is and isn’t: an agent helps build a complete packet and keeps the status current — it does not guarantee a provisional affirmation, and no tool can, because that decision stays with the MAC’s reviewer. What you get is fewer paperwork non-affirmations and a clear view of every clock that’s running.
Because ESIs, injections, augmentation, and decompression concentrate in a few specialties, the impact concentrates too. For how the paperwork engine fits the rest of the clinic, see the Kaira platform overview and the pain-management, orthopedics, and spine-surgeons specialty pages. If your commercial and Medicare Advantage side is chasing prior-auth exemptions, the mechanics pair directly with gold-carding and approval-rate tracking; and on the workers’-comp side, the same documentation discipline drives predicting and preventing denials. Texas practices can also start from the Texas personal-injury practice guide.
The bottom line for 2026
WISeR added a prior-auth gate in front of four of your busiest procedures, in six states, on a clock. The practices that treat it as a documentation problem — clean LCD-matched packets, filed early, tracked to a decision — will keep their schedules moving. The ones that treat it as a surprise will spend 2026 resubmitting. The procedures haven’t changed. The paperwork in front of them has.