Dr. Don Williams, MD
1100 Lake St Ste 230, Oak Park, IL 60301 • +1-977-555-9522
Medical Education: Accredited U.S. Medical School (Class of 1998)
What This Doctor Actually Performs: CMS Medicare Utilization & Oak Park Percentiles
NPI #1447288287 • CBSA Regional • Internal Medicine
Anchored in Oak Park, IL 60301, Dr. Don Williams, MD (NPI 1447288287) logged 721 annual procedures (focused low-volume boutique caseload (6.25th Oak Park percentile), 8.59th IL percentile, -0.22σ) with sub-specialty concentration in 29 Active CMS HCPCS Codes.
Procedural volume for Dr. Williams is led by HCPCS 99214 (Moderate-to-High Complexity Internal Medicine Follow-Up — 291 annual services, $181–$248 GPCI cash estimate), followed by CPT 99213 (Established Preventive & Chronic Care Visit, 168/yr) and CPT 93000 (In-Office 12-Lead Resting Electrocardiogram, 84/yr).
Uninsured and high-deductible cash patients visiting Dr. Don Williams in Oak Park (60301) face an estimated $218.00 initial evaluation fee at 1100 Lake St Ste 230 (in-person clinic visits only; 14-minute average reception wait; bedside manner 4.95/5 from 18 verified reports).
NPI registry verification (#1447288287) confirms Dr. Don Williams's MD standing serving CBSA 60301 with a 4.75/5 patient scorecard.
Compared against Oak Park, IL Internal Medicine peers
721 annual services across 185 beneficiaries
Standard deviations from IL 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 | 291 | 12th | $181 – $248 |
| 99213 | Established Preventive & Chronic Care Visit | 168 | 12th | $138 – $190 |
| 93000 | In-Office 12-Lead Resting Electrocardiogram | 84 | 12th | $66 – $90 |
| G0439 | Annual Preventive Wellness & Cardiometabolic Risk Assessment | 65 | 12th | $212 – $291 |
| 99204 | Comprehensive New Patient Internal Medicine Diagnostic Visit | 39 | 12th | $252 – $345 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (29 HCPCS billing breadth) | 74 | 6.25th | $163 – $236 |
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Dr. Don Williams, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Williams National Provider Identifier | NPI #1447288287 (MD) | CMS NPPES Registry (60301) |
| Dr. Williams Oak Park CMS Volume Rank | 6.25th Pct (721 CMS svcs; Z -0.224σ) | CMS Medicare Part B (IL Internal Medicine) |
| Fair Cash-Pay New-Patient Benchmark | $218.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Oak Park, IL) |
| Waiting-Room Wait Time & Cash Friendliness | $218.00 avg paid • 14 min lobby wait | 18 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.95/5 Listening • 4.78/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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