Dr. William Tsai, DO
510 N 13th Ave Ste 101, Upland, CA 91786 • +1-214-555-3925
Medical Education: Accredited U.S. Medical School (Class of 2006)
What This Doctor Actually Performs: CMS Medicare Utilization & Upland Percentiles
NPI #1285620443 • CBSA Regional • Family Practice
Anchored in Upland, CA 91786, Dr. William Tsai, DO (NPI 1285620443) logged 760 annual procedures (mid-cohort balanced caseload (50th Upland percentile), 12.94th CA percentile, -0.09σ) with sub-specialty concentration in 15 Active CMS HCPCS Codes.
Granular CPT/HCPCS billing distribution at 510 N 13th Ave Ste 101 shows Dr. William Tsai's primary concentration in Comprehensive Primary Care & Chronic Protocol Management (code 99214: 319x/yr, 50th local percentile) alongside Focused Acute & Preventive Primary Care Evaluation (99213: 236x/yr, $112–$154).
Direct cash-pay transparency modeling sets Dr. Tsai's baseline new-consult rate near $239.00 in Upland, CA (cash-pay accepted, hybrid in-clinic and telehealth video consults, 10-minute average reception wait).
Spanning 20 years of clinical practice following 2006 graduation from medical training, Dr. William Tsai integrates 15 Active CMS HCPCS Codes diagnostics for Upland metro patients.
Compared against Upland, CA Family Practice peers
760 annual services across 104 beneficiaries
Standard deviations from CA Family Practice mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 99214 | Comprehensive Primary Care & Chronic Protocol Management | 319 | 50th | $147 – $201 |
| 99213 | Focused Acute & Preventive Primary Care Evaluation | 236 | 54th | $112 – $154 |
| G0439 | Annual Wellness Biomarker & Preventive Screening Visit | 91 | 47th | $168 – $231 |
| 36415 | Routine Venipuncture Blood Biomarker Collection | 68 | 51th | $32 – $47 |
| 99204 | New Patient Primary Care Intake & Diagnostic Plan | 46 | 55th | $201 – $276 |
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Dr. William Tsai, DO Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Tsai National Provider Identifier | NPI #1285620443 (DO) | CMS NPPES Registry (91786) |
| Dr. Tsai Upland CMS Volume Rank | 50.00th Pct (760 CMS svcs; Z -0.087σ) | CMS Medicare Part B (CA Family Practice) |
| Fair Cash-Pay New-Patient Benchmark | $239.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Upland, CA) |
| Waiting-Room Wait Time & Cash Friendliness | $239.00 avg paid • 10 min lobby wait | 26 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.63/5 Listening • 4.46/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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