Dr. Eun Byun, MD
10419 Slater Ave Apt 107, Fountain Valley, CA 92708 • +1-311-555-3567
Medical Education: Accredited U.S. Medical School (Class of 2018)
What This Doctor Actually Performs: CMS Medicare Utilization & Fountain Valley Percentiles
NPI #1861683047 • CBSA Regional • Physical Medicine and Rehabilitation
Within the Fountain Valley, CA (CBSA local) Physical Medicine and Rehabilitation cohort, Dr. Eun Byun, MD with sub-specialty concentration in 5 Active CMS HCPCS Codes ranks at the 50th municipal percentile and 70.54th CA percentile (-0.06σ Z-score) based on 4,888 billed procedures for 368 patients.
Medicare Part B line-item claims for Dr. Eun Byun (92708) place 99214 at the top of the practice ledger (2200 yearly units, 50th metro rank), rounded out by 99213 and 93000.
Cash-pay intake data for NPI 1861683047 (10419 Slater Ave Apt 107, Fountain Valley) indicates $239.00 typical out-of-pocket visit spend against a $239.00 locality benchmark, paired with 9-minute average reception wait and 4.85/5 biomarker openness.
Patients evaluating Dr. Eun Byun in ZIP 92708 note 8 years of post-doctoral tenure (null, 2018) alongside 13.3 annual CMS procedures per patient.
Compared against Fountain Valley, CA Physical Medicine and Rehabilitation peers
4,888 annual services across 368 beneficiaries
Standard deviations from CA Physical Medicine and Rehabilitation 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 | 2,200 | 50th | $185 – $253 |
| 99213 | Established Preventive & Chronic Care Visit | 1,271 | 50th | $141 – $194 |
| 93000 | In-Office 12-Lead Resting Electrocardiogram | 635 | 47th | $67 – $92 |
| G0439 | Annual Preventive Wellness & Cardiometabolic Risk Assessment | 489 | 50th | $217 – $297 |
| 99204 | Comprehensive New Patient Internal Medicine Diagnostic Visit | 293 | 54th | $257 – $352 |
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Dr. Eun Byun, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Byun National Provider Identifier | NPI #1861683047 (MD) | CMS NPPES Registry (92708) |
| Dr. Byun Fountain Valley CMS Volume Rank | 50.00th Pct (4,888 CMS svcs; Z -0.064σ) | CMS Medicare Part B (CA Physical Medicine and Rehabilitation) |
| Fair Cash-Pay New-Patient Benchmark | $239.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Fountain Valley, CA) |
| Waiting-Room Wait Time & Cash Friendliness | $239.00 avg paid • 9 min lobby wait | 17 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.56/5 Listening • 4.85/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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