Dr. Santiago Villarreal, MD
4151 Callaghan Rd, Suite 103, San Antonio, TX 78228 • +1-275-555-8602
Medical Education: Accredited U.S. Medical School (Class of 1994)
What This Doctor Actually Performs: CMS Medicare Utilization & San Antonio Percentiles
NPI #1225035199 • CBSA Regional • Nephrology
Dr. Santiago Villarreal, MD (NPI #1225035199) practices Nephrology in San Antonio, TX (78228) with sub-specialty concentration in 20 Active CMS HCPCS Codes, recording 1,232 annual CMS services across 114 distinct beneficiaries—placing this practice as a focused low-volume boutique caseload (23.88th San Antonio percentile) (-0.33σ vs TX state mean, 27.69th statewide percentile).
Among 4 tracked CMS fee-schedule codes for Dr. Villarreal (averaging 10.8 services per beneficiary), 99214 (Chronic Kidney Disease eGFR, uACR & Electrolyte Management) represents 48% of tracked volume (591 encounters), paired with 90960 (271x).
At 4151 Callaghan Rd, Suite 103 (78228), Dr. Santiago Villarreal, MD accommodates direct self-pay scheduling (hybrid in-clinic and telehealth video consults) at ~$209.00 per new consult (4.94/5 bedside rating).
Credentialed as an MD specialist with 32 years post-graduation experience since completing medical school at an LCME/COCA institution (1994), Dr. Villarreal coordinates 20 Active CMS HCPCS Codes workups from 4151 Callaghan Rd, Suite 103 (+1-275-555-8602).
Compared against San Antonio, TX Nephrology peers
1,232 annual services across 114 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 | 591 | 23.88th | $178 – $244 |
| 90960 | Monthly Adult ESRD Renal Replacement Oversight | 271 | 26.88th | $356 – $487 |
| 99215 | High-Complexity Cardiorenal & Resistant Hypertension Visit | 222 | 26.88th | $259 – $355 |
| 99204 | New Patient Nephrology & Proteinuria Consultation | 148 | 26.88th | $244 – $335 |
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Dr. Santiago Villarreal, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Villarreal National Provider Identifier | NPI #1225035199 (MD) | CMS NPPES Registry (78228) |
| Dr. Villarreal San Antonio CMS Volume Rank | 23.88th Pct (1,232 CMS svcs; Z -0.332σ) | CMS Medicare Part B (TX Nephrology) |
| Fair Cash-Pay New-Patient Benchmark | $209.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (San Antonio, TX) |
| Waiting-Room Wait Time & Cash Friendliness | $209.00 avg paid • 18 min lobby wait | 8 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.94/5 Listening • 4.87/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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