Dr. Shannon Offerman, MD
19333 W North Ave, Brookfield, WI 53045 • +1-746-555-8749
Medical Education: Accredited U.S. Medical School (Class of 1992)
What This Doctor Actually Performs: CMS Medicare Utilization & Brookfield Percentiles
NPI #1356520506 • CBSA Regional • Radiation Oncology
Within the Brookfield, WI (CBSA local) Radiation Oncology cohort, Dr. Shannon Offerman, MD with sub-specialty concentration in 35 Active CMS HCPCS Codes ranks at the 99th municipal percentile and 12.63th WI percentile (-0.15σ Z-score) based on 830 billed procedures for 161 patients.
Fee-schedule auditing of NPI 1356520506 highlights 374 annual claims for 99214 (99th Brookfield percentile; $140–$192 self-pay corridor) plus 216 encounters under 99213 and 108 under 93000.
At 19333 W North Ave (53045), Dr. Shannon Offerman, MD accommodates direct self-pay scheduling (in-person clinic visits only) at ~$209.00 per new consult (4.65/5 bedside rating).
Spanning 34 years of clinical practice following 1992 graduation from medical training, Dr. Shannon Offerman integrates 35 Active CMS HCPCS Codes diagnostics for Brookfield metro patients.
Top 10% Radiation Oncology volume leader in Brookfield, WI
830 annual services across 161 beneficiaries
Standard deviations from WI 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 | 374 | 99th | $140 – $192 |
| 99213 | Established Preventive & Chronic Care Visit | 216 | 99.5th | $107 – $147 |
| 93000 | In-Office 12-Lead Resting Electrocardiogram | 108 | 99.5th | $51 – $70 |
| G0439 | Annual Preventive Wellness & Cardiometabolic Risk Assessment | 83 | 99.5th | $164 – $225 |
| 99204 | Comprehensive New Patient Internal Medicine Diagnostic Visit | 50 | 99.5th | $195 – $267 |
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Dr. Shannon Offerman, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Offerman National Provider Identifier | NPI #1356520506 (MD) | CMS NPPES Registry (53045) |
| Dr. Offerman Brookfield CMS Volume Rank | 99.00th Pct (830 CMS svcs; Z -0.154σ) | CMS Medicare Part B (WI Radiation Oncology) |
| Fair Cash-Pay New-Patient Benchmark | $209.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Brookfield, WI) |
| Waiting-Room Wait Time & Cash Friendliness | $209.00 avg paid • 12 min lobby wait | 18 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.65/5 Listening • 4.86/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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