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Fonteum Care Compare · Maryland

Maryland ambulatory surgical centers: 284 Medicare-certified, ASC quality measures with NPI bridge.

Per-facility ASC-1 through ASC-12 quality measures with deterministic NPI bridge (100.0% NPI coverage in Maryland) — the only Care Compare facility type with a usable provider-identity join key.

Cross-check at Medicare.gov →All states →
Snapshot May 7, 2026·284 Medicare-certified ASCs in Maryland · 100.0% with NPI·CMS Care Compare — ASC Quality·Module overview →·Methodology →·Audit Pack →
Source-modified 2025-12-16 · Reporting year 2024 · ASC-12 hospital-visit follow-up rates suppressed for facilities below volume threshold

ASC-12 performance breakdown — Maryland

ASC-12 measures hospital-visit rate within 7 days of outpatient surgery. CMS-published performance categories on facilities meeting the volume threshold.

N/A
217
No Different Than the National Rate
63
Number of Cases Too Small
3
Better Than the National Rate
1

ASC-1 through ASC-11 quality measures — Maryland state means

Each row is the mean CMS-published rate across Marylandfacilities that meet the measure’s reporting threshold. Lower is better for adverse-event measures; higher is better for the prophylactic-antibiotic process measure. Facilities CMS suppressed for low case volume are excluded from the mean, not counted as zero.

MeasureDirectionState meanFacilities reporting
Patient burn rateLower is better0.00%121
Unplanned hospital transfer/admissionLower is better0.02%140
Wrong site, side, patient, or procedureLower is better0.00%122
All-cause hospital readmission rateLower is better0.11%170
Appropriate prophylactic antibiotic useHigher is better77.69%49
Cataract surgery complication rateLower is better100.00%1

Highest-volume ASCs — Maryland

Top 25 by ASC-12 reportable case volume (a procedural-volume signal, not a quality measure).

FacilityCityASC-12 casesCategory
The maryland center for digestive health llcANNAPOLIS9429No Different Than the National Rate
Endocentre of baltimoreBALTIMORE4446No Different Than the National Rate
Harford endoscopy centerBEL AIR4438No Different Than the National Rate
Frederick endoscopy center llcFREDERICK3987No Different Than the National Rate
Medstar medical group southern maryland llcHOLLYWOOD3849No Different Than the National Rate
Endoscopy center of north baltimoreTOWNSON3761No Different Than the National Rate
Howard county gastrointestinal diagnostic ctr llcCOLUMBIA3567No Different Than the National Rate
Chevy chase endoscopy centerCHEVY CHASE3470Better Than the National Rate
Bethesda endoscopy center llcBETHESDA3329No Different Than the National Rate
Endoscopic surgical center of maryland northROCKVILLE3301No Different Than the National Rate
Eastern shore endoscopy llcEASTON3265No Different Than the National Rate
Endoscopic surgical centre of marylandSILVER SPRING3131No Different Than the National Rate
Ambulatory endoscopy center of marylandLAUREL3083No Different Than the National Rate
Fallsgrove endoscopy center llcROCKVILLE2889No Different Than the National Rate
Greenbelt endoscopy center llcLANHAM2809No Different Than the National Rate
Maryland endoscopy center llcTOWSON2787No Different Than the National Rate
Advanced surgery center llcROCKVILLE2674No Different Than the National Rate
Gastrointestinal diagnostic centerCATONVILLE2664No Different Than the National Rate
Endoscopy center at robinwood llcHAGERSTOWN2462No Different Than the National Rate
Endocentre at quarterfield stationGLEN BURNIE2347No Different Than the National Rate
Maryland diagnostic and therapeutic endo center llcANNAPOLIS2069No Different Than the National Rate
Waldorf endoscopy centerWALDORF1974No Different Than the National Rate
Capital endoscopy llcHYATTSVILLE1954No Different Than the National Rate
Gastrointestinal endoscopy associates llcROCKVILLE1763No Different Than the National Rate
Anne arundel digestive centerPASADENA1545No Different Than the National Rate

Maryland ambulatory surgical centers — FAQ

How many ambulatory surgical centers are Medicare-certified in Maryland?
284 Medicare-certified ambulatory surgical centers operate in Maryland as of the CMS Care Compare ASC Quality snapshot (2026-05-07). Every facility carries a National Provider Identifier — ASCs are the only Care Compare facility type with a 100% deterministic NPI bridge.
What ASC quality measures does Maryland report?
CMS publishes ASC-1 through ASC-12. This page aggregates the state mean for the per-facility rate measures that have at least one reporting facility in Maryland, plus the ASC-12 colonoscopy follow-up performance category. Measures are CMS-published rates: lower is better for adverse-event measures (burns, transfers, wrong-site events, readmissions, cataract complications) and higher is better for appropriate prophylactic antibiotic use.
Why are some facilities missing a quality rate?
CMS suppresses a measure when a facility falls below the minimum case volume for that measure in the reporting window. Suppressed facilities are excluded from each state mean rather than counted as zero, so the averages reflect only facilities CMS actually scored.
Where does this ASC data come from and how current is it?
The displayed fields come from the CMS Care Compare Ambulatory Surgical Center Quality file, source-modified 2025-12-16. Record-level provenance can be null; cross-check a consequential facility record at Medicare.gov.

Compare other facility types

Supported Care Compare facility responses for Maryland and other states expose source-and-date fields where the module supplies them; individual fields may be absent or null.

Nursing homesHome healthHospiceDialysisHospitalsAll modules

Compliance posture

Methodology · Corrections log · Editorial policy

What’s on file, by the numbers

Platform snapshot · 2026-07-15

13.4Mproviders & companiesProviders, organizations, owners, and facilities on file
26.2Msource-linked factsSource-linked field facts in the dated platform snapshot
—sources liveCrosswalk-resolved sources with a proved content transition in the preceding 45 days
111sources integratedActive registry rows; integration does not establish a load
13state Medicaid jurisdictionsDistinct states represented in the state-exclusions serving table

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These are the federal agencies whose public datasets Fonteum ingests and attributes — the issuing authorities, not customers or partners. Every figure on the site links back to one of them.

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Named medical review

Reviewed by Jennifer Montecillo, MD, medical reviewer. Non-practicing medical reviewer.

Read the full provenance and attestation methodology →

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Reviewed by Jennifer Montecillo, MD, medical reviewer. Non-practicing medical reviewer.

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Fonteum's provenance ledger contained 26.2M source-linked facts on July 12, 2026. All but 14 carried a source-file SHA-256; 0 linked deterministically to a signature. Inspect a supplied snapshot id at fonteum.com/verify · source-mark coverage and limitations.
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