Dr. Jennifer Williamson, MD
400 22nd Ave, Brookings, SD 57006 • +1-646-555-2194
Medical Education: Accredited U.S. Medical School (Class of 1995)
What This Doctor Actually Performs: CMS Medicare Utilization & Brookings Percentiles
NPI #1427305721 • CBSA Regional • Internal Medicine
Dr. Jennifer Williamson, MD (NPI #1427305721) practices Internal Medicine in Brookings, SD (57006) with sub-specialty concentration in 19 Active CMS HCPCS Codes, recording 1,655 annual CMS services across 558 distinct beneficiaries—placing this practice as a focused low-volume boutique caseload (0th Brookings percentile) (-0.20σ vs SD state mean, 62.2th statewide percentile).
Among 5 tracked CMS fee-schedule codes for Dr. Williamson (averaging 3.0 services per beneficiary), 99214 (Moderate-to-High Complexity Internal Medicine Follow-Up) represents 45% of tracked volume (745 encounters), paired with 99213 (430x).
Uninsured and high-deductible cash patients visiting Dr. Jennifer Williamson in Brookings (57006) face an estimated $209.00 initial evaluation fee at 400 22nd Ave (in-person clinic visits only; 10-minute average reception wait; bedside manner 4.83/5 from 12 verified reports).
Credentialed as an MD specialist with 31 years post-graduation experience since completing medical school at an LCME/COCA institution (1995), Dr. Williamson coordinates 19 Active CMS HCPCS Codes workups from 400 22nd Ave (+1-646-555-2194).
Compared against Brookings, SD Internal Medicine peers
1,655 annual services across 558 beneficiaries
Standard deviations from SD 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 | 745 | 12th | $138 – $190 |
| 99213 | Established Preventive & Chronic Care Visit | 430 | 12th | $106 – $145 |
| 93000 | In-Office 12-Lead Resting Electrocardiogram | 215 | 12th | $51 – $69 |
| G0439 | Annual Preventive Wellness & Cardiometabolic Risk Assessment | 166 | 12th | $162 – $223 |
| 99204 | Comprehensive New Patient Internal Medicine Diagnostic Visit | 99 | 12th | $193 – $264 |
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Dr. Jennifer Williamson, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Williamson National Provider Identifier | NPI #1427305721 (MD) | CMS NPPES Registry (57006) |
| Dr. Williamson Brookings CMS Volume Rank | 0.00th Pct (1,655 CMS svcs; Z -0.199σ) | CMS Medicare Part B (SD Internal Medicine) |
| Fair Cash-Pay New-Patient Benchmark | $209.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Brookings, SD) |
| Waiting-Room Wait Time & Cash Friendliness | $209.00 avg paid • 10 min lobby wait | 12 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.83/5 Listening • 4.43/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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