Dr. Constance Marks, MD
1541 Riverboat Center DR, Joliet, IL 60431 • +1-594-555-8753
Medical Education: Accredited U.S. Medical School (Class of 1995)
What This Doctor Actually Performs: CMS Medicare Utilization & Joliet Percentiles
NPI #1831398445 • CBSA Regional • Urology
Operating out of Joliet, IL (1541 Riverboat Center DR), Urology clinician Dr. Constance Marks, MD (accredited MD/DO training, 1995) maintains a focused low-volume boutique caseload (0th Joliet percentile) (69.44th IL percentile; Z-score +0.03σ across 8,878 documented services) with sub-specialty concentration in 96 Active CMS HCPCS Codes.
Granular CPT/HCPCS billing distribution at 1541 Riverboat Center DR shows Dr. Constance Marks's primary concentration in Established Urologic, BPH & Androgen Evaluation (code 99214: 1538x/yr, 12th local percentile) alongside Ultrasound Measurement of Post-Void Residual Urine Capacity (51798: 1154x/yr, $27–$42).
Self-pay new patient consultations with Dr. Marks (CPT 99204 GPCI-adjusted benchmark) estimate around $218.00 (community reported average: $218.00) with in-person clinic visits only, 12-minute average reception wait, and a 4.44/5 modern protocol openness score across 6 patient logs.
Spanning 31 years of clinical practice following 1995 graduation from medical training, Dr. Constance Marks integrates 96 Active CMS HCPCS Codes diagnostics for Joliet metro patients.
Compared against Joliet, IL Urology peers
8,878 annual services across 695 beneficiaries
Standard deviations from IL Urology 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 Urologic, BPH & Androgen Evaluation | 1,538 | 12th | $65 – $89 |
| 51798 | Ultrasound Measurement of Post-Void Residual Urine Capacity | 1,154 | 12th | $27 – $42 |
| 52000 | Diagnostic Cystourethroscopy Lower Urinary Tract Inspection | 726 | 12th | $132 – $181 |
| 51741 | Complex Electronic Uroflowmetry Stream Calibration | 513 | 12th | $37 – $52 |
| 99204 | New Patient Urologic & Prostate Diagnostic Consultation | 342 | 12th | $91 – $125 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (96 HCPCS billing breadth) | 4,605 | 0th | $58 – $84 |
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Dr. Constance Marks, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Marks National Provider Identifier | NPI #1831398445 (MD) | CMS NPPES Registry (60431) |
| Dr. Marks Joliet CMS Volume Rank | 0.00th Pct (8,878 CMS svcs; Z +0.029σ) | CMS Medicare Part B (IL Urology) |
| Fair Cash-Pay New-Patient Benchmark | $218.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Joliet, IL) |
| Waiting-Room Wait Time & Cash Friendliness | $218.00 avg paid • 12 min lobby wait | 6 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.55/5 Listening • 4.44/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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