Dr. William Kornrich, MD
887 Old Country Rd, Suite A, Riverhead, NY 11901 • +1-933-555-7533
Medical Education: Accredited U.S. Medical School (Class of 1993)
What This Doctor Actually Performs: CMS Medicare Utilization & Riverhead Percentiles
NPI #1144332198 • CBSA Regional • Internal Medicine
Within the Riverhead, NY (CBSA local) Internal Medicine cohort, Dr. William Kornrich, MD with sub-specialty concentration in 32 Active CMS HCPCS Codes ranks at the 72.73th municipal percentile and 81.64th NY percentile (+0.03σ Z-score) based on 4,001 billed procedures for 805 patients.
Medicare Part B line-item claims for Dr. William Kornrich (11901) place 99214 at the top of the practice ledger (1647 yearly units, 72.73th metro rank), rounded out by 99213 and 93000.
Cash-pay intake data for NPI 1144332198 (887 Old Country Rd, Suite A, Riverhead) indicates $232.00 typical out-of-pocket visit spend against a $232.00 locality benchmark, paired with 11-minute average reception wait and 4.93/5 biomarker openness.
From 887 Old Country Rd, Suite A in Riverhead (+1-933-555-7533), Dr. Kornrich, MD (33-year clinical track record) delivers 32 Active CMS HCPCS Codes care.
Compared against Riverhead, NY Internal Medicine peers
4,001 annual services across 805 beneficiaries
Standard deviations from NY Internal Medicine 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 | 1,647 | 72.73th | $148 – $203 |
| 99213 | Established Preventive & Chronic Care Visit | 952 | 77.73th | $113 – $155 |
| 93000 | In-Office 12-Lead Resting Electrocardiogram | 476 | 67.73th | $54 – $74 |
| G0439 | Annual Preventive Wellness & Cardiometabolic Risk Assessment | 366 | 68.73th | $174 – $238 |
| 99204 | Comprehensive New Patient Internal Medicine Diagnostic Visit | 220 | 69.73th | $206 – $282 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (32 HCPCS billing breadth) | 341 | 72.73th | $133 – $193 |
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Dr. William Kornrich, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Kornrich National Provider Identifier | NPI #1144332198 (MD) | CMS NPPES Registry (11901) |
| Dr. Kornrich Riverhead CMS Volume Rank | 72.73th Pct (4,001 CMS svcs; Z +0.034σ) | CMS Medicare Part B (NY Internal Medicine) |
| Fair Cash-Pay New-Patient Benchmark | $232.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Riverhead, NY) |
| Waiting-Room Wait Time & Cash Friendliness | $232.00 avg paid • 11 min lobby wait | 7 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.67/5 Listening • 4.93/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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