Dr. William Shaffer, MD
1521 S Staples St, Ste 601, Corpus Christi, TX 78404 • +1-365-555-4743
Medical Education: Accredited U.S. Medical School (Class of 2008)
What This Doctor Actually Performs: CMS Medicare Utilization & Corpus Christi Percentiles
NPI #1972506913 • CBSA Regional • Nephrology
Statistical peer benchmarking across TX Nephrology providers positions Dr. William Shaffer, MD in Corpus Christi at -0.38σ (16.67th city percentile / 17.81th state percentile, 271 Medicare beneficiaries), with clinical focus spanning 15 Active CMS HCPCS Codes.
Dr. Shaffer's longitudinal care intensity (3.8 billed units per patient across 271 individuals) centers on 99214 (492 annual units) and 90960 ($521–$714 cash range).
Self-pay new patient consultations with Dr. Shaffer (CPT 99204 GPCI-adjusted benchmark) estimate around $209.00 (community reported average: $209.00) with hybrid in-clinic and telehealth video consults, 19-minute average reception wait, and a 4.85/5 modern protocol openness score across 25 patient logs.
Spanning 18 years of clinical practice following 2008 graduation from medical training, Dr. William Shaffer integrates 15 Active CMS HCPCS Codes diagnostics for Corpus Christi metro patients.
Compared against Corpus Christi, TX Nephrology peers
1,024 annual services across 271 beneficiaries
Standard deviations from TX Nephrology mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 99214 | Chronic Kidney Disease eGFR, uACR & Electrolyte Management | 492 | 16.67th | $261 – $357 |
| 90960 | Monthly Adult ESRD Renal Replacement Oversight | 225 | 20.67th | $521 – $714 |
| 99215 | High-Complexity Cardiorenal & Resistant Hypertension Visit | 184 | 13.67th | $380 – $521 |
| 99204 | New Patient Nephrology & Proteinuria Consultation | 123 | 20.67th | $358 – $491 |
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Dr. William Shaffer, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Shaffer National Provider Identifier | NPI #1972506913 (MD) | CMS NPPES Registry (78404) |
| Dr. Shaffer Corpus Christi CMS Volume Rank | 16.67th Pct (1,024 CMS svcs; Z -0.378σ) | CMS Medicare Part B (TX Nephrology) |
| Fair Cash-Pay New-Patient Benchmark | $209.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Corpus Christi, TX) |
| Waiting-Room Wait Time & Cash Friendliness | $209.00 avg paid • 19 min lobby wait | 25 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.87/5 Listening • 4.85/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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