How ACOs use this

Coding and reimbursement teams use this to spot site-of-service migration patterns. When a procedure moves from inpatient to ASC, your contract assumptions and benchmark interpretation need to follow.

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📊 Medicare FFS Data

Post-COVID Procedure Trends & Site-of-Service Migration

CMS Medicare Physician PUF | 3.4 Billion Services | 2019–2023

See what's growing, what's moving, and where

Key Insights

The Big Picture

Medicare FFS procedure volume hit 3.41 billion services in 2023, up 3.5% from 2019. But the recovery from COVID didn't just restore the old pattern — it changed the mix. Facility-based services declined 16% (563M → 471M), while office-based services grew 8% (2.73B → 2.94B). The shift to outpatient and office settings is accelerating.

What's Driving Growth

Physical therapy is the standout — therapeutic activities (97530) and neuromuscular re-education (97112) together added +29M services. Remote patient monitoring codes exploded +3,500%. Meanwhile, 1,020 new procedure codes emerged since 2019, dominated by specialty drugs and COVID-era telehealth/testing.

Site-of-Service Migration

Wound care, imaging, and diagnostic procedures are rapidly migrating from facilities to office settings. Skin substitute grafts (15271) shifted 41 percentage points toward office. Surgery category volumes are flat, but the office share is growing — signaling that less complex surgical procedures are moving to lower-cost settings.

Geographic Variation

Growth is uneven. Idaho (+56%), Illinois (+41%), and Alaska (+32%) saw the biggest jumps — often driven by therapy and testing code expansion. Meanwhile, West Virginia (−32%), Maine (−17%), and Kentucky (−14%) saw significant declines, possibly reflecting population shifts and provider supply constraints.

Total Services (2023)
3.41B
+3.5% vs 2019 baseline
Unique Procedures
9,297
HCPCS codes tracked
New Since 2019
1,020
Emerging procedure codes
States Tracked
61
Full geographic coverage

Total Service Volume Trend

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Facility vs Office Volume Trend

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Top 15 Fastest-Growing Procedures

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Top 10 Procedures: 5-Year Trend

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Service Category Mix (2023)

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Biggest Shifts to Office (% Points)

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State-by-State Growth: Top 20 (2019-2023)

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Surgery Category: Facility vs Office Trend

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New & Emerging Procedures Since 2019 (Top 20)

Code Description First Year 2023 Volume Beneficiaries Drug?
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Top Procedure Decliners (Top 10)

Code Description 2019 Volume 2023 Volume Change % Change
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State Growth Rankings (Top 15)

State 2019 Volume 2023 Volume Growth %
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