Dr. Ha Nguyen, MD
227 W Janss Rd, Ste 125, Thousand Oaks, CA 91360 • +1-311-555-6352
Medical Education: Accredited U.S. Medical School (Class of 2012)
What This Doctor Actually Performs: CMS Medicare Utilization & Thousand Oaks Percentiles
NPI #1518256429 • CBSA Regional • Neurosurgery
Operating out of Thousand Oaks, CA (227 W Janss Rd, Ste 125), Neurosurgery clinician Dr. Ha Nguyen, MD (accredited MD/DO training, 2012) maintains a mid-cohort balanced caseload (50th Thousand Oaks percentile) (94.26th CA percentile; Z-score +1.65σ across 2,903 documented services) with sub-specialty concentration in 68 Active CMS HCPCS Codes.
Fee-schedule auditing of NPI 1518256429 highlights 1306 annual claims for 99214 (50th Thousand Oaks percentile; $148–$202 self-pay corridor) plus 755 encounters under 99213 and 377 under 93000.
Uninsured and high-deductible cash patients visiting Dr. Ha Nguyen in Thousand Oaks (91360) face an estimated $239.00 initial evaluation fee at 227 W Janss Rd, Ste 125 (hybrid in-clinic and telehealth video consults; 16-minute average reception wait; bedside manner 4.85/5 from 8 verified reports).
NPI registry verification (#1518256429) confirms Dr. Ha Nguyen's MD standing serving CBSA 91360 with a 4.81/5 patient scorecard.
Compared against Thousand Oaks, CA Neurosurgery peers
2,903 annual services across 413 beneficiaries
Standard deviations from CA Neurosurgery mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 99214 | Moderate-to-High Complexity Internal Medicine Follow-Up | 1,306 | 50th | $148 – $202 |
| 99213 | Established Preventive & Chronic Care Visit | 755 | 55th | $113 – $155 |
| 93000 | In-Office 12-Lead Resting Electrocardiogram | 377 | 53th | $54 – $74 |
| G0439 | Annual Preventive Wellness & Cardiometabolic Risk Assessment | 290 | 52th | $173 – $238 |
| 99204 | Comprehensive New Patient Internal Medicine Diagnostic Visit | 174 | 46th | $206 – $282 |
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Dr. Ha Nguyen, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Nguyen National Provider Identifier | NPI #1518256429 (MD) | CMS NPPES Registry (91360) |
| Dr. Nguyen Thousand Oaks CMS Volume Rank | 50.00th Pct (2,903 CMS svcs; Z +1.653σ) | CMS Medicare Part B (CA Neurosurgery) |
| Fair Cash-Pay New-Patient Benchmark | $239.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Thousand Oaks, CA) |
| Waiting-Room Wait Time & Cash Friendliness | $239.00 avg paid • 16 min lobby wait | 8 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.85/5 Listening • 4.74/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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