Dr. John Ayers, MD
4405 Weaver Pkwy, Warrenville, IL 60555 • +1-931-555-6564
Medical Education: Accredited U.S. Medical School (Class of 2007)
What This Doctor Actually Performs: CMS Medicare Utilization & Warrenville Percentiles
NPI #1477540821 • CBSA Regional • Hematology-Oncology
Statistical peer benchmarking across IL Hematology-Oncology providers positions Dr. John Ayers, MD in Warrenville at -0.67σ (40th city percentile / 27.08th state percentile, 489 Medicare beneficiaries), with clinical focus spanning 15 Active CMS HCPCS Codes.
Procedural volume for Dr. Ayers is led by HCPCS 99214 (Moderate-to-High Complexity Internal Medicine Follow-Up — 594 annual services, $216–$296 GPCI cash estimate), followed by CPT 99213 (Established Preventive & Chronic Care Visit, 343/yr) and CPT 93000 (In-Office 12-Lead Resting Electrocardiogram, 172/yr).
Uninsured and high-deductible cash patients visiting Dr. John Ayers in Warrenville (60555) face an estimated $218.00 initial evaluation fee at 4405 Weaver Pkwy (in-person clinic visits only; 18-minute average reception wait; bedside manner 4.77/5 from 12 verified reports).
Spanning 19 years of clinical practice following 2007 graduation from medical training, Dr. John Ayers integrates 15 Active CMS HCPCS Codes diagnostics for Warrenville metro patients.
Compared against Warrenville, IL Hematology-Oncology peers
1,321 annual services across 489 beneficiaries
Standard deviations from IL Hematology-Oncology mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 99214 | Moderate-to-High Complexity Internal Medicine Follow-Up | 594 | 40th | $216 – $296 |
| 99213 | Established Preventive & Chronic Care Visit | 343 | 44th | $165 – $226 |
| 93000 | In-Office 12-Lead Resting Electrocardiogram | 172 | 38th | $79 – $108 |
| G0439 | Annual Preventive Wellness & Cardiometabolic Risk Assessment | 132 | 41th | $253 – $347 |
| 99204 | Comprehensive New Patient Internal Medicine Diagnostic Visit | 79 | 36th | $300 – $412 |
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Dr. John Ayers, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Ayers National Provider Identifier | NPI #1477540821 (MD) | CMS NPPES Registry (60555) |
| Dr. Ayers Warrenville CMS Volume Rank | 40.00th Pct (1,321 CMS svcs; Z -0.667σ) | CMS Medicare Part B (IL Hematology-Oncology) |
| Fair Cash-Pay New-Patient Benchmark | $218.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Warrenville, IL) |
| Waiting-Room Wait Time & Cash Friendliness | $218.00 avg paid • 18 min lobby wait | 12 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.77/5 Listening • 4.53/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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