Dr. Thoi Lien, MD
8054 Garvey Ave Ste 201, Rosemead, CA 91770 • +1-378-555-3037
Medical Education: Accredited U.S. Medical School (Class of 2007)
What This Doctor Actually Performs: CMS Medicare Utilization & Rosemead Percentiles
NPI #1871653816 • CBSA Regional • Family Practice
Operating out of Rosemead, CA (8054 Garvey Ave Ste 201), Family Practice clinician Dr. Thoi Lien, MD (accredited MD/DO training, 2007) maintains a upper-quartile active clinical volume (66.67th Rosemead percentile) (86.97th CA percentile; Z-score +0.03σ across 4,863 documented services) with sub-specialty concentration in 33 Active CMS HCPCS Codes.
Medicare Part B line-item claims for Dr. Thoi Lien (91770) place 99214 at the top of the practice ledger (1866 yearly units, 66.67th metro rank), rounded out by 99213 and G0439.
Direct cash-pay transparency modeling sets Dr. Lien's baseline new-consult rate near $239.00 in Rosemead, CA (cash-pay accepted, in-person clinic visits only, 19-minute average reception wait).
NPI registry verification (#1871653816) confirms Dr. Thoi Lien's MD standing serving CBSA 91770 with a 4.72/5 patient scorecard.
Compared against Rosemead, CA Family Practice peers
4,863 annual services across 740 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 | 1,866 | 66.67th | $144 – $197 |
| 99213 | Focused Acute & Preventive Primary Care Evaluation | 1,378 | 63.67th | $110 – $151 |
| G0439 | Annual Wellness Biomarker & Preventive Screening Visit | 533 | 66.67th | $165 – $226 |
| 36415 | Routine Venipuncture Blood Biomarker Collection | 400 | 62.67th | $31 – $46 |
| 99204 | New Patient Primary Care Intake & Diagnostic Plan | 267 | 70.67th | $198 – $271 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (33 HCPCS billing breadth) | 419 | 66.67th | $130 – $189 |
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Dr. Thoi Lien, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Lien National Provider Identifier | NPI #1871653816 (MD) | CMS NPPES Registry (91770) |
| Dr. Lien Rosemead CMS Volume Rank | 66.67th Pct (4,863 CMS svcs; Z +0.032σ) | CMS Medicare Part B (CA Family Practice) |
| Fair Cash-Pay New-Patient Benchmark | $239.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Rosemead, CA) |
| Waiting-Room Wait Time & Cash Friendliness | $239.00 avg paid • 19 min lobby wait | 3 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.79/5 Listening • 4.79/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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