Dr. Corey Ephrussi, DO
155b Halton Village Cir, Greenville, SC 29607 • +1-434-555-9597
Medical Education: Accredited U.S. Medical School (Class of 1995)
What This Doctor Actually Performs: CMS Medicare Utilization & Greenville Percentiles
NPI #1487883443 • CBSA Regional • Rheumatology
Operating out of Greenville, SC (155b Halton Village Cir), Rheumatology clinician Dr. Corey Ephrussi, DO (accredited MD/DO training, 1995) maintains a upper-quartile active clinical volume (84.62th Greenville percentile) (96.77th SC percentile; Z-score +2.45σ across 376,481 documented services) with sub-specialty concentration in 44 Active CMS HCPCS Codes.
Granular CPT/HCPCS billing distribution at 155b Halton Village Cir shows Dr. Corey Ephrussi's primary concentration in Autoimmune Arthritis & Biologic/DMARD Safety Evaluation (code 99214: 2220x/yr, 84.62th local percentile) alongside Large Joint Synovial Arthrocentesis or Corticosteroid Injection (20610: 1014x/yr, $36–$51).
For out-of-network patients contacting +1-434-555-9597, Dr. Ephrussi's practice posts a $209.00 GPCI self-pay consult estimate ($209.00 patient-logged median, 4.57/5 composite reality score over 12 submissions).
NPI registry verification (#1487883443) confirms Dr. Corey Ephrussi's DO standing serving CBSA 29607 with a 4.57/5 patient scorecard.
Compared against Greenville, SC Rheumatology peers
376,481 annual services across 1,035 beneficiaries
Standard deviations from SC Rheumatology mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 99214 | Autoimmune Arthritis & Biologic/DMARD Safety Evaluation | 2,220 | 84.62th | $45 – $62 |
| 20610 | Large Joint Synovial Arthrocentesis or Corticosteroid Injection | 1,014 | 84.62th | $36 – $51 |
| 96413 | Intravenous Biologic Infusion Therapy (First Hour) | 724 | 83.62th | $62 – $85 |
| 76881 | Complete Joint Synovitis High-Resolution Ultrasound | 483 | 82.62th | $47 – $65 |
| 99204 | New Patient Autoimmune & Rheumatology Diagnostic Workup | 386 | 84.62th | $62 – $85 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (44 HCPCS billing breadth) | 371,654 | 84.62th | $45 – $65 |
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Dr. Corey Ephrussi, DO Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Ephrussi National Provider Identifier | NPI #1487883443 (DO) | CMS NPPES Registry (29607) |
| Dr. Ephrussi Greenville CMS Volume Rank | 84.62th Pct (376,481 CMS svcs; Z +2.448σ) | CMS Medicare Part B (SC Rheumatology) |
| Fair Cash-Pay New-Patient Benchmark | $209.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Greenville, SC) |
| Waiting-Room Wait Time & Cash Friendliness | $209.00 avg paid • 16 min lobby wait | 12 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.89/5 Listening • 4.90/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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