Dr. Walter Marbach, MD
13755 Cicero Ave, Crestwood, IL 60445 • +1-955-555-9398
Medical Education: Accredited U.S. Medical School (Class of 2008)
What This Doctor Actually Performs: CMS Medicare Utilization & Crestwood Percentiles
NPI #1891703591 • CBSA Regional • Rheumatology
Within the Crestwood, IL (CBSA local) Rheumatology cohort, Dr. Walter Marbach, MD with sub-specialty concentration in 73 Active CMS HCPCS Codes ranks at the 99th municipal percentile and 98.58th IL percentile (+3.70σ Z-score) based on 354,350 billed procedures for 553 patients.
Among 6 tracked CMS fee-schedule codes for Dr. Marbach (averaging 640.8 services per beneficiary), 99214 (Autoimmune Arthritis & Biologic/DMARD Safety Evaluation) represents 0% of tracked volume (1196 encounters), paired with 20610 (546x).
Cash-pay intake data for NPI 1891703591 (13755 Cicero Ave, Crestwood) indicates $218.00 typical out-of-pocket visit spend against a $218.00 locality benchmark, paired with 11-minute average reception wait and 4.77/5 biomarker openness.
Clinical background for Dr. Marbach (MD, NPI #1891703591) includes accredited doctoral training (2008, 18 yrs in practice) and virtual + in-office availability across IL.
Top 10% Rheumatology volume leader in Crestwood, IL
354,350 annual services across 553 beneficiaries
Standard deviations from IL Rheumatology mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 99214 | Autoimmune Arthritis & Biologic/DMARD Safety Evaluation | 1,196 | 99th | $47 – $65 |
| 20610 | Large Joint Synovial Arthrocentesis or Corticosteroid Injection | 546 | 98th | $37 – $52 |
| 96413 | Intravenous Biologic Infusion Therapy (First Hour) | 390 | 99.5th | $65 – $89 |
| 76881 | Complete Joint Synovitis High-Resolution Ultrasound | 260 | 98th | $49 – $67 |
| 99204 | New Patient Autoimmune & Rheumatology Diagnostic Workup | 208 | 99.5th | $65 – $89 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (73 HCPCS billing breadth) | 351,750 | 99th | $45 – $65 |
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Dr. Walter Marbach, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Marbach National Provider Identifier | NPI #1891703591 (MD) | CMS NPPES Registry (60445) |
| Dr. Marbach Crestwood CMS Volume Rank | 99.00th Pct (354,350 CMS svcs; Z +3.701σ) | CMS Medicare Part B (IL Rheumatology) |
| Fair Cash-Pay New-Patient Benchmark | $218.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Crestwood, IL) |
| Waiting-Room Wait Time & Cash Friendliness | $218.00 avg paid • 11 min lobby wait | 19 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.78/5 Listening • 4.77/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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