Last reviewed: August 2026
Reference material for ambulatory surgery centers
Playbooks on revenue leak, denials and peer-to-peer review, plus regulatory guides to WISeR, the CMS prior authorization demonstrations, and CMS-0057.
Playbooks
Revenue leak — the money you earned and didn't keep
Approved cases paid short, aging AR nobody worked, cases that lost money before they started, and rework that shows up as headcount. Four leaks a center's own systems cannot total.
The approved cases that never got paid
The disclaimer on every authorization approval is accurate. The cost is that nobody ever reconciles which approved cases were actually paid — so the same failure repeats.
Denial management for ambulatory surgery centers
Why ASC denials are not hospital denials, the reasons that recur week after week, and how to trace each one back to the criterion in the packet that failed.
Peer-to-peer review for ambulatory surgery centers
What a peer-to-peer actually is, when payers request one, and why most fail for reasons that have nothing to do with the clinical merits.
Regulatory guides
WISeR — prior authorization in traditional Medicare
Six states, 13 service categories, and a gold-card exemption that is already live. What the model means for a surgery center, including the parts most coverage gets wrong.
Which CMS prior authorization program are you in?
Three CMS programs run at once and are constantly confused. A one-minute way to identify your own.
CMS-0057 compliance guide
The federal prior authorization rule — decision deadlines in force since January 2026, and the FHIR API requirements landing January 2027.
Trust
Security
How Approva protects patient data and clinical information across the authorization workflow.
Business Associate Agreement
Approva signs a HIPAA BAA before handling any PHI. Learn what our agreement covers and how to execute one.
SOC 2
Approva is pursuing a SOC 2 Type II report. Trust documentation available on request.