Dr. Marc Posner, MD
660 N Westmoreland Rd, Lake Forest, IL 60045 • +1-492-555-9074
Medical Education: Accredited U.S. Medical School (Class of 2004)
What This Doctor Actually Performs: CMS Medicare Utilization & Lake Forest Percentiles
NPI #1871569574 • CBSA Regional • Radiation Oncology
Within the Lake Forest, IL (CBSA local) Radiation Oncology cohort, Dr. Marc Posner, MD with sub-specialty concentration in 33 Active CMS HCPCS Codes ranks at the 99th municipal percentile and 87.5th IL percentile (+0.30σ Z-score) based on 3,718 billed procedures for 269 patients.
Medicare Part B line-item claims for Dr. Marc Posner (60045) place 99214 at the top of the practice ledger (1673 yearly units, 99th metro rank), rounded out by 99213 and 93000.
Direct cash-pay transparency modeling sets Dr. Posner's baseline new-consult rate near $218.00 in Lake Forest, IL (cash-pay accepted, in-person clinic visits only, 20-minute average reception wait).
NPI registry verification (#1871569574) confirms Dr. Marc Posner's MD standing serving CBSA 60045 with a 4.89/5 patient scorecard.
Top 10% Radiation Oncology volume leader in Lake Forest, IL
3,718 annual services across 269 beneficiaries
Standard deviations from IL Radiation Oncology 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 | 1,673 | 99th | $147 – $202 |
| 99213 | Established Preventive & Chronic Care Visit | 967 | 99th | $113 – $155 |
| 93000 | In-Office 12-Lead Resting Electrocardiogram | 483 | 99th | $54 – $74 |
| G0439 | Annual Preventive Wellness & Cardiometabolic Risk Assessment | 372 | 95th | $173 – $237 |
| 99204 | Comprehensive New Patient Internal Medicine Diagnostic Visit | 223 | 99.5th | $205 – $281 |
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Dr. Marc Posner, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Posner National Provider Identifier | NPI #1871569574 (MD) | CMS NPPES Registry (60045) |
| Dr. Posner Lake Forest CMS Volume Rank | 99.00th Pct (3,718 CMS svcs; Z +0.304σ) | CMS Medicare Part B (IL Radiation Oncology) |
| Fair Cash-Pay New-Patient Benchmark | $218.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Lake Forest, IL) |
| Waiting-Room Wait Time & Cash Friendliness | $218.00 avg paid • 20 min lobby wait | 12 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.65/5 Listening • 4.71/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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