Dr. Karen Ma, MD
155 E Brush Hill Rd, Elmhurst, IL 60126 • +1-677-555-8703
Medical Education: Accredited U.S. Medical School (Class of 2002)
What This Doctor Actually Performs: CMS Medicare Utilization & Elmhurst Percentiles
NPI #1124464789 • CBSA Regional • Gastroenterology
Within the Elmhurst, IL (CBSA local) Gastroenterology cohort, Dr. Karen Ma, MD with sub-specialty concentration in 36 Active CMS HCPCS Codes ranks at the 33.33th municipal percentile and 37.15th IL percentile (-0.25σ Z-score) based on 1,006 billed procedures for 413 patients.
Procedural volume for Dr. Ma is led by HCPCS 99214 (Established Gastroenterology, GERD & IBD Evaluation — 372 annual services, $219–$300 GPCI cash estimate), followed by CPT 45380 (Diagnostic Colonoscopy w/ Mucosal Tissue Biopsy, 252/yr) and CPT 43239 (Upper GI Esophagogastroduodenoscopy (EGD) w/ Biopsy, 211/yr).
Cash-pay intake data for NPI 1124464789 (155 E Brush Hill Rd, Elmhurst) indicates $218.00 typical out-of-pocket visit spend against a $218.00 locality benchmark, paired with 18-minute average reception wait and 4.59/5 biomarker openness.
Credentialed as an MD specialist with 24 years post-graduation experience since completing medical school at an LCME/COCA institution (2002), Dr. Ma coordinates 36 Active CMS HCPCS Codes workups from 155 E Brush Hill Rd (+1-677-555-8703).
Compared against Elmhurst, IL Gastroenterology peers
1,006 annual services across 413 beneficiaries
Standard deviations from IL Gastroenterology mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 99214 | Established Gastroenterology, GERD & IBD Evaluation | 372 | 33.33th | $219 – $300 |
| 45380 | Diagnostic Colonoscopy w/ Mucosal Tissue Biopsy | 252 | 36.33th | $528 – $723 |
| 43239 | Upper GI Esophagogastroduodenoscopy (EGD) w/ Biopsy | 211 | 34.33th | $438 – $601 |
| 45385 | Colonoscopy w/ Snare Polypectomy Lesion Removal | 101 | 29.33th | $588 – $805 |
| 99204 | New Patient Digestive & Hepatology Consultation | 70 | 31.33th | $309 – $423 |
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Dr. Karen Ma, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Ma National Provider Identifier | NPI #1124464789 (MD) | CMS NPPES Registry (60126) |
| Dr. Ma Elmhurst CMS Volume Rank | 33.33th Pct (1,006 CMS svcs; Z -0.251σ) | CMS Medicare Part B (IL Gastroenterology) |
| Fair Cash-Pay New-Patient Benchmark | $218.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Elmhurst, IL) |
| Waiting-Room Wait Time & Cash Friendliness | $218.00 avg paid • 18 min lobby wait | 10 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.64/5 Listening • 4.59/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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