Dr. Thanh-Lan Quan, MD
10362 Bolsa Ave, Ste 201, Westminster, CA 92683 • +1-519-555-9686
Medical Education: Accredited U.S. Medical School (Class of 2003)
What This Doctor Actually Performs: CMS Medicare Utilization & Westminster Percentiles
NPI #1831133511 • CBSA Regional • Ophthalmology
Dr. Thanh-Lan Quan, MD (NPI #1831133511) practices Ophthalmology in Westminster, CA (92683) with sub-specialty concentration in 36 Active CMS HCPCS Codes, recording 4,156 annual CMS services across 1,342 distinct beneficiaries—placing this practice as a mid-cohort balanced caseload (57.14th Westminster percentile) (-0.23σ vs CA state mean, 63.03th statewide percentile).
Fee-schedule auditing of NPI 1831133511 highlights 1538 annual claims for 92014 (57.14th Westminster percentile; $210–$288 self-pay corridor) plus 1081 encounters under 92134 and 707 under 92083.
Cash-pay intake data for NPI 1831133511 (10362 Bolsa Ave, Ste 201, Westminster) indicates $239.00 typical out-of-pocket visit spend against a $239.00 locality benchmark, paired with 17-minute average reception wait and 4.71/5 biomarker openness.
Spanning 23 years of clinical practice following 2003 graduation from medical training, Dr. Thanh-Lan Quan integrates 36 Active CMS HCPCS Codes diagnostics for Westminster metro patients.
Compared against Westminster, CA Ophthalmology peers
4,156 annual services across 1,342 beneficiaries
Standard deviations from CA Ophthalmology mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 92014 | Comprehensive Ophthalmologic Slit-Lamp & Dilated Retinal Exam | 1,538 | 57.14th | $210 – $288 |
| 92134 | Scanning Computerized Ophthalmic Retinal OCT Imaging | 1,081 | 56.14th | $116 – $158 |
| 92083 | Extended Threshold Visual Field Glaucoma Perimetry | 707 | 59.14th | $139 – $190 |
| 92004 | New Patient Complete Medical Eye & IOP Evaluation | 499 | 53.14th | $253 – $346 |
| 66984 | Extracapsular Cataract Removal w/ Intraocular Lens Implant | 332 | 60.14th | $925 – $1268 |
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Dr. Thanh-Lan Quan, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Quan National Provider Identifier | NPI #1831133511 (MD) | CMS NPPES Registry (92683) |
| Dr. Quan Westminster CMS Volume Rank | 57.14th Pct (4,156 CMS svcs; Z -0.233σ) | CMS Medicare Part B (CA Ophthalmology) |
| Fair Cash-Pay New-Patient Benchmark | $239.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Westminster, CA) |
| Waiting-Room Wait Time & Cash Friendliness | $239.00 avg paid • 17 min lobby wait | 17 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.71/5 Listening • 4.71/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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