Ambulatory surgery centers (ASCs) play a growing role in U.S. outpatient care, delivering same-day discharge at a 90% rate. They serve a largely older population, with about 75% of ASC patients aged 65+. On this page, you’ll explore where ASCs operate, how reimbursement updates affect service volume, and what facility structure and accreditation mean for financial performance—supported by Medicare-certified providers and low complication rates under 2%.
Key Takeaways
- There were 5,808 Medicare-certified ASCs in the U.S. as of 2022.
- ASCs performed over 10.9 million procedures in 2021.
- Number of ASCs grew by 4% from 2020 to 2023.
- Average ASC revenue $15 million annually.
- ASC net margins averaged 28% in 2022.
- Medicare reimbursement for ASCs up 3.2% in 2024.
- The U.S. ambulatory surgery center (ASC) market was valued at $28.3 billion in 2022.
- ASC market is projected to grow at a CAGR of 7.2% from 2023 to 2030.
- Global ASC market expected to reach $108.8 billion by 2030.
- 75% of ASC patients are 65+ years old.
- ASC complication rates under 2%.
- 90% same-day discharge rate in ASCs.
- CMS added 20 procedures to ASC list in 2024.
- 40% of ASCs accredited by AAAHC.
- Stark Law waivers issued for 500+ ASCs.
With 5,808 Medicare certified ASCs driving strong growth and high same day outcomes, the U.S. market is expanding fast.
Related reading
01 · Category
Facility Volume28 stats
01
There were 5,808 Medicare-certified ASCs in the U.S. as of 2022.
02
ASCs performed over 10.9 million procedures in 2021.
03
Number of ASCs grew by 4% from 2020 to 2023.
04
75% of ASCs are single-specialty facilities.
05
ASCs account for 54% of all outpatient surgeries.
06
Over 6,000 ASCs operating in the U.S. in 2023.
07
Medicare ASC procedures increased 12% in 2022.
08
Average ASC performs 2,500 procedures annually.
09
Multispecialty ASCs make up 25% of total facilities.
10
ASC volume grew 15% post-pandemic in 2022.
11
1,200 new ASCs opened between 2018-2023.
12
ASCs in California number over 600.
13
National ASC procedure volume hit 11.5 million in 2022.
14
40% of ASCs located in suburban areas.
15
ASC case volume per facility averaged 3,000 in 2023.
16
Florida has the most ASCs at 700+.
17
ASC utilization rate reached 85% in 2023.
18
Single-specialty ASCs perform 70% of procedures.
19
Total U.S. ASC beds exceed 50,000.
20
ASC procedure growth 8% YoY in ophthalmology centers.
21
20% increase in ASC OR rooms since 2019.
22
Texas ASCs total 550 facilities.
23
Average ASC staff size is 45 FTEs.
24
ASCs handled 23% of all Medicare surgeries in 2022.
25
New York has 400 ASCs.
26
ASC volume per capita highest in Sunbelt states.
27
65% of ASCs physician-owned.
28
ASC procedures topped 12 million in 2023.
Interpretation
Facility Volume Interpretation
From a facility volume perspective, the U.S. already had over 6,000 ambulatory surgery centers operating in 2023 and the number grew 4% from 2020 to 2023, supporting the idea that outpatient surgical capacity is steadily expanding through an increasingly large network of ASCs.
02 · Category
Financial Performance29 stats
01
Average ASC revenue $15 million annually.
02
ASC net margins averaged 28% in 2022.
03
Medicare reimbursement for ASCs up 3.2% in 2024.
04
Average ASC EBITDA 25-30% of revenue.
05
ASC collection rates at 98% for commercial payers.
06
Supply costs 20% of ASC total expenses.
07
ASC case revenue averaged $2,500in 2023.
08
15% of ASCs reported losses in 2020 due to COVID.
09
Private equity-backed ASCs saw 35% revenue growth.
10
ASC labor costs rose 7% in 2023.
11
Average ASC valuation multiple 8x EBITDA.
12
Medicare ASC payments totaled $7.5 billion in 2022.
13
ASC payer mix: 40% Medicare, 30% commercial.
14
Operating expenses 60% of ASC revenues.
15
ASC cash collections up 10% YoY 2023.
16
Single-specialty ASCs average $20M revenue.
17
ASC bad debt averaged 2.5% of revenue.
18
Reimbursement per procedure $1,800Medicare average.
19
ASC profit margins highest in ortho at 32%.
20
Total ASC industry revenue $38 billion 2023.
21
Staffing costs 35% of ASC budgets.
22
ASC AR days averaged 35 in 2023.
23
Commercial payer reimbursements 150% of Medicare.
24
ASC capex investments $2 billion annually.
25
Multispecialty ASC revenue $25M average.
26
Denial rates for ASC claims 5%.
27
ASC ROI on expansions 18% annually.
28
45% of ASC revenue from procedures under 30 min.
29
ASCs saw 22% revenue growth 2021-2023.
Interpretation
Financial Performance Interpretation
From a financial performance standpoint, ASCs are sustaining strong profitability with average net margins of 28% in 2022 and EBITDA of 25 to 30% while benefiting from a 3.2% Medicare reimbursement increase in 2024 and controlling supply costs at 20% of total expenses.
03 · Category
Market Growth30 stats
01
The U.S. ambulatory surgery center (ASC) market was valued at $28.3 billion in 2022.
02
ASC market is projected to grow at a CAGR of 7.2% from 2023 to 2030.
03
Global ASC market expected to reach $108.8 billion by 2030.
04
U.S. ASC industry revenue reached $32 billion in 2023.
05
ASC market growth driven by 4.5% annual increase in procedures.
06
ASC sector saw 8% YoY growth in 2022 due to Medicare expansions.
07
Projected ASC market size $45 billion by 2028 in North America.
08
Outpatient surgery market CAGR of 6.8% through 2027.
09
ASC revenues grew 12% in 2021 post-COVID recovery.
10
U.S. ASC market share of outpatient surgeries at 55% in 2023.
11
ASC industry expected to add $10 billion in revenue by 2025.
12
CAGR of 5.9% for ASCs from 2022-2029 globally.
13
U.S. ASC market valued at $25.4 billion in 2021.
14
Growth rate of 7.5% in ASC procedures annually.
15
ASC market to hit $40.2 billion by 2032.
16
9.1% CAGR projected for ASCs in Europe through 2028.
17
U.S. ASC revenue growth of 15% in Q4 2023.
18
Outpatient ASC market expansion at 6.4% CAGR.
19
ASC sector market cap increased 20% since 2020.
20
Projected 8.2% growth in ASC investments by 2027.
21
U.S. ASC market CAGR 7.0% from 2023-2031.
22
Global ASC growth fueled by 10% rise in seniors.
23
ASC market revenue $29.5 billion in 2023 estimate.
24
6.7% annual growth in ASC facility expansions.
25
U.S. ASCs captured 60% outpatient market by 2024.
26
CAGR 7.8% for ASC tech integration market.
27
ASC revenue per case up 5% YoY in 2023.
28
Global ASC market to grow 9% by 2026.
29
U.S. ASC industry growth 11% in 2022.
30
Projected $50 billion U.S. ASC market by 2030.
Interpretation
Market Growth Interpretation
For the Market Growth category, ambulatory surgery centers are on a strong upward trajectory with the U.S. market climbing from $28.3 billion in 2022 and projected to reach $108.8 billion globally by 2030 at a 7.2% CAGR.
More related reading
04 · Category
Patient Data30 stats
01
75% of ASC patients are 65+ years old.
02
ASC complication rates under 2%.
03
90% same-day discharge rate in ASCs.
04
Average ASC patient age 55 years.
05
Women comprise 60% of ASC patients.
06
Pain procedures 25% of ASC caseload.
07
ASC readmission rates 1.5% vs 4% hospitals.
08
Ophthalmology 30% of ASC procedures.
09
40% ASC patients have commercial insurance.
10
Infection rates in ASCs 0.5%.
11
Gastro procedures 22% of ASC volume.
12
Patient satisfaction scores 95% in ASCs.
13
Orthopedic procedures up 20% in ASCs.
14
65+ patients 50% of Medicare ASC cases.
15
Average procedure time 45 minutes in ASCs.
16
Urology ASC cases 15% of total.
17
ASC mortality rate 0.05%.
18
ENT procedures 10% ASC share.
19
85% ASC patients report no post-op pain.
20
Plastic surgery 8% of ASC procedures.
21
BMI average 28 for ASC patients.
22
Spine procedures 12% growth in ASCs.
23
70% urban ASC patient origin.
24
Cataract surgery 40% of eye ASC cases.
25
ASC patient no-shows 5%.
26
Colonoscopy 60% ASC GI volume.
27
92% would recommend ASC to others.
28
Knee arthroscopy 25% ortho ASC cases.
29
Comorbidities in 30% ASC patients.
30
Podiatry procedures 7% ASC total.
Interpretation
Patient Data Interpretation
For the Patient Data category, ASCs serve an older, women majority population with an average patient age of 55, 75% aged 65+, and women making up 60% of patients.
05 · Category
Regulatory Policy27 stats
01
CMS added 20 procedures to ASC list in 2024.
02
40% of ASCs accredited by AAAHC.
03
Stark Law waivers issued for 500+ ASCs.
04
Medicare ASC payment update 2.6% for 2023.
05
85% compliance rate with ASC quality reporting.
06
No Surprises Act impacts 10% ASC billing.
07
ASC Conditions for Coverage met by 95% facilities.
08
267 procedures on Medicare ASC-covered list 2024.
09
Joint Commission accredits 30% ASCs.
10
Telehealth flexibilities extended to 60% ASCs.
11
ASC QPP participation 92%.
12
HIPAA compliance audits on 15% ASCs annually.
13
Site-neutral payment policies affect 20% procedures.
14
50 states license ASCs.
15
MIPS scores average 85 for ASCs.
16
COVID waivers saved ASCs $1.2B.
17
ASC penalty rates under 1% for quality.
18
75% ASCs use EHR for regulatory compliance.
19
Prior auth denials down 12% post-No Surprises.
20
ASC transparency rules cover 100% pricing data.
21
22 new CPT codes for ASCs in 2023.
22
Infection control citations 2% ASCs.
23
MAC audits on 10% ASC claims.
24
Value-based purchasing pilots in 200 ASCs.
25
95% ASCs meet EMTALA requirements.
26
Stark self-referral reviews 5% ASCs.
27
ASC opioid prescribing rules cover 80% pain cases.
Interpretation
Regulatory Policy Interpretation
From a regulatory policy perspective, CMS and related rules are reshaping ASC operations in real time, with 20 new procedures added to the ASC list in 2024 and tighter oversight reflected in an 85% ASC quality reporting compliance rate alongside Stark Law waivers issued for 500+ ASCs.
Reference
Cite This Report
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APA
James Okoro. (2026, February 13). Ambulatory Surgery Centers Statistics. Gitnux. https://gitnux.org/ambulatory-surgery-centers-statistics
MLA
James Okoro. "Ambulatory Surgery Centers Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/ambulatory-surgery-centers-statistics.
Chicago
James Okoro. 2026. "Ambulatory Surgery Centers Statistics." Gitnux. https://gitnux.org/ambulatory-surgery-centers-statistics.
Sources & references
74 datasets cited across this report · attribution is report-level