Dr. William Stassen, MD
8015 Shoal Creek Blvd Ste 118, Austin, TX 78757 • +1-805-555-2054
Medical Education: Accredited U.S. Medical School (Class of 1996)
What This Doctor Actually Performs: CMS Medicare Utilization & Austin Percentiles
NPI #1548245079 • CBSA 12420 • Gastroenterology
Operating out of Austin, TX (8015 Shoal Creek Blvd Ste 118), Gastroenterology clinician Dr. William Stassen, MD (accredited MD/DO training, 1996) maintains a mid-cohort balanced caseload (40.74th Austin percentile) (34.71th TX percentile; Z-score -0.28σ across 1,024 documented services) with sub-specialty concentration in 26 Active CMS HCPCS Codes.
Dr. Stassen's longitudinal care intensity (3.1 billed units per patient across 335 individuals) centers on 99214 (379 annual units) and 45380 ($280–$384 cash range).
Self-pay new patient consultations with Dr. Stassen (CPT 99204 GPCI-adjusted benchmark) estimate around $211.00 (community reported average: $211.00) with hybrid in-clinic and telehealth video consults, 16-minute average reception wait, and a 4.77/5 modern protocol openness score across 4 patient logs.
Spanning 30 years of clinical practice following 1996 graduation from medical training, Dr. William Stassen integrates 26 Active CMS HCPCS Codes diagnostics for Austin metro patients.
Compared against Austin, TX Gastroenterology peers
1,024 annual services across 335 beneficiaries
Standard deviations from TX 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 | 379 | 40.74th | $116 – $160 |
| 45380 | Diagnostic Colonoscopy w/ Mucosal Tissue Biopsy | 256 | 44.74th | $280 – $384 |
| 43239 | Upper GI Esophagogastroduodenoscopy (EGD) w/ Biopsy | 215 | 42.74th | $233 – $319 |
| 45385 | Colonoscopy w/ Snare Polypectomy Lesion Removal | 102 | 41.74th | $312 – $428 |
| 99204 | New Patient Digestive & Hepatology Consultation | 72 | 36.74th | $164 – $225 |
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Dr. William Stassen, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Stassen National Provider Identifier | NPI #1548245079 (MD) | CMS NPPES Registry (78757) |
| Dr. Stassen Austin CMS Volume Rank | 40.74th Pct (1,024 CMS svcs; Z -0.281σ) | CMS Medicare Part B (TX Gastroenterology) |
| Fair Cash-Pay New-Patient Benchmark | $211.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Austin, TX) |
| Waiting-Room Wait Time & Cash Friendliness | $211.00 avg paid • 16 min lobby wait | 4 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.61/5 Listening • 4.77/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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