Dr. Ewelina Bryll-Perzan, MD
450 Clarkson Ave, Brooklyn, NY 11203 • +1-367-555-2441
Medical Education: Accredited U.S. Medical School (Class of 2003)
What This Doctor Actually Performs: CMS Medicare Utilization & Brooklyn Percentiles
NPI #1649627282 • CBSA Regional • Endocrinology
Within the Brooklyn, NY (CBSA local) Endocrinology cohort, Dr. Ewelina Bryll-Perzan, MD with sub-specialty concentration in 16 Active CMS HCPCS Codes ranks at the 40th municipal percentile and 43.49th NY percentile (-0.33σ Z-score) based on 1,824 billed procedures for 343 patients.
Medicare Part B line-item claims for Dr. Ewelina Bryll-Perzan (11203) place 99214 at the top of the practice ledger (803 yearly units, 40th metro rank), rounded out by 95251 and 76536.
For out-of-network patients contacting +1-367-555-2441, Dr. Bryll-Perzan's practice posts a $232.00 GPCI self-pay consult estimate ($232.00 patient-logged median, 4.74/5 composite reality score over 5 submissions).
NPI registry verification (#1649627282) confirms Dr. Ewelina Bryll-Perzan's MD standing serving CBSA 11203 with a 4.74/5 patient scorecard.
Compared against Brooklyn, NY Endocrinology peers
1,824 annual services across 343 beneficiaries
Standard deviations from NY Endocrinology mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 99214 | Complex Endocrine, Thyroid & Metabolic Biomarker Management | 803 | 40th | $118 – $162 |
| 95251 | Ambulatory Continuous Glucose Monitoring (CGM) Data Analysis | 401 | 35th | $74 – $101 |
| 76536 | High-Resolution Thyroid & Parathyroid Neck Ultrasound | 292 | 38th | $143 – $196 |
| 99204 | Comprehensive New Patient Endocrine & Hormone Workup | 219 | 38th | $163 – $223 |
| 99215 | High-Complexity Multi-Hormone & Insulin Pump Titration | 109 | 42th | $182 – $250 |
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Dr. Ewelina Bryll-Perzan, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Bryll-Perzan National Provider Identifier | NPI #1649627282 (MD) | CMS NPPES Registry (11203) |
| Dr. Bryll-Perzan Brooklyn CMS Volume Rank | 40.00th Pct (1,824 CMS svcs; Z -0.327σ) | CMS Medicare Part B (NY Endocrinology) |
| Fair Cash-Pay New-Patient Benchmark | $232.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Brooklyn, NY) |
| Waiting-Room Wait Time & Cash Friendliness | $232.00 avg paid • 17 min lobby wait | 5 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.82/5 Listening • 4.47/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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