Dr. Michael Nguyen, DO
4445 Magnolia Ave, Riverside, CA 92501 • +1-693-555-1509
Medical Education: Accredited U.S. Medical School (Class of 1993)
What This Doctor Actually Performs: CMS Medicare Utilization & Riverside Percentiles
NPI #1366939043 • CBSA Regional • Hospitalist
Operating out of Riverside, CA (4445 Magnolia Ave), Hospitalist clinician Dr. Michael Nguyen, DO (accredited MD/DO training, 1993) maintains a focused low-volume boutique caseload (25th Riverside percentile) (0.65th CA percentile; Z-score -0.09σ across 636 documented services) with sub-specialty concentration in 12 Active CMS HCPCS Codes.
Dr. Nguyen's longitudinal care intensity (3.3 billed units per patient across 195 individuals) centers on 99214 (286 annual units) and 99213 ($191–$262 cash range).
Cash-pay intake data for NPI 1366939043 (4445 Magnolia Ave, Riverside) indicates $239.00 typical out-of-pocket visit spend against a $239.00 locality benchmark, paired with 19-minute average reception wait and 4.69/5 biomarker openness.
Clinical background for Dr. Nguyen (DO, NPI #1366939043) includes accredited doctoral training (1993, 33 yrs in practice) and virtual + in-office availability across CA.
Compared against Riverside, CA Hospitalist peers
636 annual services across 195 beneficiaries
Standard deviations from CA Hospitalist 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 | 286 | 25th | $250 – $342 |
| 99213 | Established Preventive & Chronic Care Visit | 165 | 28th | $191 – $262 |
| 93000 | In-Office 12-Lead Resting Electrocardiogram | 83 | 29th | $91 – $125 |
| G0439 | Annual Preventive Wellness & Cardiometabolic Risk Assessment | 64 | 20th | $293 – $401 |
| 99204 | Comprehensive New Patient Internal Medicine Diagnostic Visit | 38 | 26th | $347 – $476 |
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Dr. Michael Nguyen, DO Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Nguyen National Provider Identifier | NPI #1366939043 (DO) | CMS NPPES Registry (92501) |
| Dr. Nguyen Riverside CMS Volume Rank | 25.00th Pct (636 CMS svcs; Z -0.089σ) | CMS Medicare Part B (CA Hospitalist) |
| Fair Cash-Pay New-Patient Benchmark | $239.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Riverside, CA) |
| Waiting-Room Wait Time & Cash Friendliness | $239.00 avg paid • 19 min lobby wait | 7 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.82/5 Listening • 4.69/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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