An ambulatory surgery center cannot bill Medicare without certification, and certification can come through two paths: a state survey conducted directly by the Centers for Medicare and Medicaid Services or its state agency, or accreditation through a CMS-approved accrediting organization that confers what is commonly called deemed status. For most physician-owned ASCs and group practices launching new centers, the practical decision is between pursuing accreditation through an organization like AAAHC or going directly through state survey to certification. The choice influences activation timing, survey rigor, ongoing oversight, and the cost and effort of maintaining compliance over the life of the facility.
This article walks through what each path actually involves, where the trade-offs fall, and how to align the accreditation strategy with the construction, activation, and operational readiness plan.
What Medicare Certification Actually Requires
Every ASC that wants to bill Medicare has to meet the Conditions for Coverage that CMS has published for ambulatory surgical centers. Those conditions cover governance, quality assessment and performance improvement, environment, medical staff, nursing services, sterilization and infection control, pharmaceutical services, anesthesia services, surgical services, and patient rights. They are the regulatory floor every certified ASC has to clear, regardless of the path taken to verify compliance.
A state survey path means the state survey agency, acting on behalf of CMS, schedules an unannounced initial certification survey once the facility is operationally ready. Surveyors verify compliance with the Conditions for Coverage and recommend certification to CMS. Surveys are typically less frequent than accreditation surveys but are unannounced, which means the facility has to be survey-ready continuously.
A deemed status path means the ASC is accredited by an organization CMS has approved — currently AAAHC, The Joint Commission, and the Accreditation Association for Hospitals/Health Systems-Healthcare Facilities Accreditation Program — and that accreditation is accepted in lieu of a state survey for Medicare certification. The full list of approved organizations and their respective scopes is published by the Centers for Medicare and Medicaid Services and updated as approvals change.
Where AAAHC Accreditation Fits
The Accreditation Association for Ambulatory Health Care is one of the most common accrediting bodies for physician-owned ASCs and outpatient surgical practices. AAAHC standards emphasize peer involvement, quality improvement, and practical operational compliance, and the survey process is generally regarded as practitioner-friendly relative to some hospital-oriented accreditors. Surveys are typically scheduled, with notice, and surveyors often include practicing physicians and ASC professionals.
The accreditation cycle is three years, with a full survey at the start of the cycle and ongoing self-assessment between surveys. AAAHC publishes its standards and survey expectations through the Accreditation Association for Ambulatory Health Care and updates them periodically; centers preparing for survey should work from the current edition rather than older versions.
AAAHC accreditation, when paired with deemed status, satisfies the Medicare certification requirement and is recognized by most commercial payers as well. For ASCs that want a survey process aligned with ambulatory care realities and a recurring accreditation cadence, AAAHC is often the natural fit.
Where State Survey and Direct CMS Certification Fits
Some ASCs go directly through state survey rather than pursuing accreditation. The path is straightforward in concept: the facility opens, the state survey agency conducts an unannounced initial certification survey, and CMS issues certification based on the survey result. Recertification surveys then occur on an irregular schedule — sometimes years apart — based on state agency priorities and complaint history.
This path can be appealing for ASCs that want to avoid the cost of accreditation and the administrative burden of preparing for scheduled accreditation surveys. The trade-off is that state surveys are unannounced and can occur at any time, which means the facility has to maintain continuous survey readiness without the structured cadence that accreditation provides. State surveyors often follow a stricter, more regulatory-toned approach than accreditors, and findings can carry meaningful corrective action requirements.
Some states also impose additional state licensing requirements on top of the federal Conditions for Coverage. These vary widely; a state-by-state map of ASC licensing and survey requirements is maintained by the Ambulatory Surgery Center Association and is a useful starting reference for owners planning a multi-state strategy.
How the Decision Affects Construction and Activation
The accreditation path influences the activation plan in several ways that owners should think through before construction is too far advanced.
Documentation requirements are different. Accrediting organizations publish detailed standards and self-assessment tools that drive policy, procedure, and documentation development. State survey agencies generally rely on the Conditions for Coverage and any state-specific requirements without the same level of structured prep material. Owners pursuing accreditation often find the standards helpful for organizing operational readiness; owners going direct often have to build their own readiness framework.
Survey timing is different. Accreditation surveys are typically scheduled, which lets owners align survey readiness with the activation date. State surveys are unannounced and timing depends on the state agency, which means an ASC may open and operate for weeks or months before the survey occurs. That has implications for staffing, training, and policy implementation in the early operational period.
Renewal cadence is different. AAAHC surveys on a three-year cycle. The Joint Commission surveys on a similar cycle. State agencies recertify on irregular schedules. Owners should align their internal compliance program with the cadence the chosen path implies.
The Real Cost and Ongoing Burden of Each Path
Cost is a real factor in the decision, and owners should compare the full lifecycle, not just the upfront survey fee. Accreditation through AAAHC carries an application fee, a survey fee scaled to facility size, and an ongoing membership and re-survey cost on the three-year cycle. The Joint Commission carries similar but generally higher fees structured around the facility’s complexity and service lines. Direct state survey carries no accrediting fee, but it requires the facility to absorb the full administrative load of preparation and ongoing readiness without the structured framework an accreditor provides.
Ongoing burden is where the cost picture gets more interesting. Accreditation pulls a clinic into a defined cycle of self-assessment, performance improvement projects, peer review documentation, and pre-survey preparation. That structure absorbs management attention, but it also produces a culture of continuous readiness that benefits clinical operations beyond the survey itself. Direct state survey produces less external structure and less ongoing administrative load between surveys, but it also produces less continuous improvement infrastructure unless the facility builds its own.
For physician-owned ASCs at smaller scale, the difference can be meaningful. The accrediting cost may exceed direct state survey costs by tens of thousands of dollars over a multi-year horizon, but the operational discipline accreditation imposes often pays back in clinical performance, payer credibility, and survey predictability.
How to Choose the Right Path
The right path depends on the facility’s clinical scope, the owner’s tolerance for unannounced surveys, the desired survey rigor, the cost calculus, and the payer mix. Most physician-owned ASCs landing in commercial-heavy markets choose AAAHC or a similar accreditor for the predictability and the alignment with ambulatory care realities. Some larger systems with hospital affiliations choose The Joint Commission for consistency with their hospital accreditation. A minority of facilities, often in markets where state survey is fast and operational readiness is strong, go direct.
Owners weighing the decision benefit from a structured readiness assessment that maps the chosen standards against the facility’s design, operations, and documentation. Solid licensing and accreditation readiness work surfaces gaps months before the survey rather than during it. Coordinated activation, licensing readiness, and move management hold the activation timeline together when survey scheduling, staffing, and operational readiness all converge. Experienced compliance, risk and specialty consulting support can interpret state-specific nuances that generic accreditation prep does not address.
Pick the Path That Fits the Facility
There is no universally correct accreditation path. The right answer depends on the practice, the market, and the operational model. What matters is that the path is chosen deliberately, the readiness program is built around the right standards, and the activation plan aligns survey timing with operational readiness. Talk to Medical Construction Group about how to align accreditation strategy with construction, activation, and licensing on your next ASC project.
Frequently Asked Questions
- Can an ASC bill Medicare before it is certified?
No. Medicare billing requires certification, which the ASC obtains either through a state survey or through deemed status from a CMS-approved accrediting organization. Centers planning their go-live timeline should not assume they can bill Medicare from day one of operations unless certification is already in hand. - How long does the certification process typically take?
Timelines vary widely. Accreditation surveys can usually be scheduled once the facility is operationally ready, with results typically returned within a few weeks. State survey timelines depend entirely on the state agency and can run from weeks to several months after the request for a survey. - Does accreditation through AAAHC satisfy commercial payer requirements as well?
Most commercial payers accept AAAHC accreditation, but specific contracts may require additional documentation or recognize specific accreditors. Owners should confirm requirements with their major payers during contracting rather than assuming uniform recognition.