CMS released the calendar year 2027 final payment rule for ASCs and hospital outpatient departments on Nov. 4. ASCs will receive an average payment update of 2.3%, slightly below the proposed 2.4%. The Ambulatory Surgery Center Association (ASCA) breaks down the rule in detail in ASC Focus.
When we wrote about last year's final rule, the big story was expansion. That expansion continues in 2027. This year's rule also makes clear that the payment rates attached to that growth are not keeping pace with the cost of running a surgery center, and ASC leaders need to plan for growth and rate pressure at the same time.
Excluding device costs from the scalar is one reason the 2027 rule affects specialties so differently. According to Becker's ASC Review, CMS projects Medicare payments for eye and GI procedures, which account for 38% of Medicare ASC spending, will each fall about 1%. Payments for musculoskeletal and nervous system procedures are projected to rise about 6%.
Pain management, among the highest-volume ASC specialties, faces similar pressure. With Medicare rates on eye, GI, and pain procedures declining in 2027, cost per case and room utilization will have the greatest effect on margin.
For centers growing orthopedic, spine, or cardiovascular programs, higher payment comes with greater cost exposure. Implants are among the largest cost drivers for ASCs, so margins on these cases can depend as much on purchase price and commercial contract terms as on Medicare rates. Adding more complex procedures also means granting surgeons privileges, training staff, buying new equipment, and setting appropriate patient selection criteria. These procedures require clinical staff at a time when shortages and labor inflation are already raising costs and limiting capacity.
Whatever their specialty mix, the centers best positioned for 2027 and beyond will choose procedures carefully, stay closely aligned with their physicians, operate efficiently, and track costs and margins at the case level.
The IPO phaseout also changes the calculus for hospitals. As Medicare stops requiring inpatient admission for hundreds of procedures and expands site-neutral payment for hospital outpatient services, health systems have more reason to invest in ASCs, and many already do. In the 7th Hospital Leadership ASC Survey from Avanza + MedHQ, 89% of hospital and health system leaders said they have at least one ASC affiliated, owned, or under development, and 79% structure at least some of their ASCs as joint ventures with physicians. Nine in 10 reported commercial payer pressure to move services to outpatient settings, and 97% said an ASC helps with surgeon recruitment.
We expect consolidation to continue as health systems, national operators, and physician groups invest for scale. For physician-owned centers, that brings more partnership interest. For health systems, it brings more competition for the surgeons and centers they want to work with. Whether a center is weighing a partnership, pursuing an acquisition, or growing on its own, it negotiates from a stronger position when it has reliable data on its case costs, quality, efficiency, and payer mix.
We recommend ASC leaders take these steps before the new year:
Model 2027 Medicare revenue against your own case mix. Apply your wage index to the final rates for the codes you perform most.
Talk with your surgeons now. Ask which newly eligible procedures they want to bring to the center and what volume they expect. Surgeon commitment should come before any investment in equipment or staffing.
Evaluate new procedures one at a time. Before adding a procedure from the expanded ASC-CPL, confirm implant and supply costs, commercial coverage, staffing, and equipment needs.
Revisit commercial contracts. With Medicare rates under pressure, commercial rates and implant carve-out terms carry more weight in overall margin.
Tighten the revenue cycle. Prior authorization, denials, coding requirements, payer-specific rules, and higher patient financial responsibility make collections more difficult, and complex cases—especially those with implants and devices—further raise the stakes on every claim.
Stay current on quality reporting. CMS removed ASC-9 and added no new measures for 2027, but centers that miss Ambulatory Surgical Center Quality Reporting (ASCQR) requirements receive a 0.3% update instead of 2.3%. Total joint programs should also prepare for ASC-21, the hip and knee replacement patient-reported outcome measure. Reporting is voluntary in 2027 with no payment penalty, which gives centers time to test data collection workflows before mandatory reporting begins with 2028 procedures. Preoperative data collection for those cases can start as early as Oct. 3, 2027.
Doing all of that requires more than adding individual tools. It requires connected clinical, operational, and financial workflows that give ASC leaders a clearer picture of performance.
The 2027 rule reinforces a challenge ASC leaders already know well: growth alone doesn't guarantee stronger performance. As new procedures move into the outpatient setting and reimbursement pressure continues, surgery centers need to understand which cases make financial sense, manage increasing complexity, and protect margin as they grow.
SIS is purpose-built to help ASCs do exactly that. By bringing ASC-focused technology and services together, SIS helps surgery centers turn clinical, operational, and financial information into better decisions while reducing day-to-day operational complexity.
Understand the economics of every case. With SIS Complete, ASC leaders can connect scheduling, clinical documentation, billing, inventory, and case-cost information across one cloud platform. Visibility into case costs and volumes helps centers evaluate new procedures, monitor changing case mix, and better understand where margin opportunities and risks exist.
Protect revenue as cases become more complex. SIS Revenue Cycle Services combines ASC-specific billing expertise with workflows designed around the realities of surgery center reimbursement. As payer requirements, prior authorization, coding, implants, and patient responsibility become more complex, SIS helps centers strengthen collections and reduce avoidable denials.
Scale without adding unnecessary compliance burden. SIS Comply centralizes credentialing, staff training, policy management, and accreditation readiness, helping centers stay organized as they add surgeons, staff, and new procedures.
Get documentation into the revenue cycle faster and accurately. From direct entry and full-service transcription to SIS Scribe with AI-powered transcription, SIS gives ASCs multiple ways to capture and complete operative notes based on surgeon preferences and facility workflows. That flexibility helps reduce documentation bottlenecks and gives billing teams faster access to the accurate, complete operative notes they need to move claims forward.
The opportunity for ASCs continues to grow, but capturing it profitably will require tighter control over costs, revenue, workflows, and complexity. SIS brings those capabilities together so surgery centers can grow confidently and Operate Smart™.
CMS finalized an average update of 2.3% for ASCs that meet quality reporting requirements, reflecting a 3.2% hospital market basket increase minus a 0.9 percentage point productivity adjustment. Centers that do not meet ASCQR requirements will receive 0.3%.
Why are payments falling for common ASC procedures if the update is positive?CMS applies a budget-neutrality weight scalar to the non-device portion of ASC payments, and the 2027 scalar of 0.814 is well below the 2026 scalar of 0.872. As a result, all 10 of the highest-volume ASC procedures will be paid less in 2027.
When will the inpatient-only list be fully eliminated?CMS is phasing out the IPO list over three years. The 2027 rule removes 637 procedures, and the final year, 2028, will address the most clinically complex procedures that remain.
What changed in the ASC Quality Reporting Program for 2027?CMS removed ASC-9, the colonoscopy follow-up interval measure, beginning with the 2027 reporting period, and added no new measures. Mandatory reporting for ASC-21, the hip and knee replacement outcome measure, begins with 2028 procedures, with preoperative data collection starting as early as October 2027.