Dr. Chengwei Peng, MD
676 N Saint Clair St Ste 850, Chicago, IL 60611 • +1-630-555-6425
Medical Education: Accredited U.S. Medical School (Class of 2014)
What This Doctor Actually Performs: CMS Medicare Utilization & Chicago Percentiles
NPI #1265813216 • CBSA 16980 • Internal Medicine
Statistical peer benchmarking across IL Internal Medicine providers positions Dr. Chengwei Peng, MD in Chicago at +7.29σ (99.5th city percentile / 99.66th state percentile, 379 Medicare beneficiaries), with clinical focus spanning 144 Active CMS HCPCS Codes.
Granular CPT/HCPCS billing distribution at 676 N Saint Clair St Ste 850 shows Dr. Chengwei Peng's primary concentration in Moderate-to-High Complexity Internal Medicine Follow-Up (code 99214: 770x/yr, 99.5th local percentile) alongside Established Preventive & Chronic Care Visit (99213: 445x/yr, $35–$50).
For out-of-network patients contacting +1-630-555-6425, Dr. Peng's practice posts a $222.00 GPCI self-pay consult estimate ($222.00 patient-logged median, 4.53/5 composite reality score over 4 submissions).
Credentialed as an MD specialist with 12 years post-graduation experience since completing medical school at an LCME/COCA institution (2014), Dr. Peng coordinates 144 Active CMS HCPCS Codes workups from 676 N Saint Clair St Ste 850 (+1-630-555-6425).
Top 10% Internal Medicine volume leader in Chicago, IL
87,989 annual services across 379 beneficiaries
Standard deviations from IL Internal Medicine 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 | 770 | 99.5th | $46 – $63 |
| 99213 | Established Preventive & Chronic Care Visit | 445 | 97.5th | $35 – $50 |
| 93000 | In-Office 12-Lead Resting Electrocardiogram | 222 | 99.5th | $25 – $40 |
| G0439 | Annual Preventive Wellness & Cardiometabolic Risk Assessment | 171 | 99.5th | $54 – $74 |
| 99204 | Comprehensive New Patient Internal Medicine Diagnostic Visit | 103 | 96.5th | $64 – $88 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (144 HCPCS billing breadth) | 86,278 | 99.5th | $45 – $65 |
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Dr. Chengwei Peng, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Peng National Provider Identifier | NPI #1265813216 (MD) | CMS NPPES Registry (60611) |
| Dr. Peng Chicago CMS Volume Rank | 99.50th Pct (87,989 CMS svcs; Z +7.295σ) | CMS Medicare Part B (IL Internal Medicine) |
| Fair Cash-Pay New-Patient Benchmark | $222.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Chicago, IL) |
| Waiting-Room Wait Time & Cash Friendliness | $222.00 avg paid • 14 min lobby wait | 4 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.94/5 Listening • 4.93/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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