Dr. Yvonne Oseiwe-Williams, MD
20 First Light Ct, Baltimore, MD 21237 • +1-305-555-7887
Medical Education: Accredited U.S. Medical School (Class of 1996)
What This Doctor Actually Performs: CMS Medicare Utilization & Baltimore Percentiles
NPI #1538301676 • CBSA Regional • Emergency Medicine
Anchored in Baltimore, MD 21237, Dr. Yvonne Oseiwe-Williams, MD (NPI 1538301676) logged 659 annual procedures (focused low-volume boutique caseload (14th Baltimore percentile), 9.05th MD percentile, -0.46σ) with sub-specialty concentration in 20 Active CMS HCPCS Codes.
Among 5 tracked CMS fee-schedule codes for Dr. Oseiwe-Williams (averaging 1.2 services per beneficiary), 99214 (Moderate-to-High Complexity Internal Medicine Follow-Up) represents 45% of tracked volume (297 encounters), paired with 99213 (171x).
For out-of-network patients contacting +1-305-555-7887, Dr. Oseiwe-Williams's practice posts a $209.00 GPCI self-pay consult estimate ($209.00 patient-logged median, 4.56/5 composite reality score over 7 submissions).
Credentialed as an MD specialist with 30 years post-graduation experience since completing medical school at an LCME/COCA institution (1996), Dr. Oseiwe-Williams coordinates 20 Active CMS HCPCS Codes workups from 20 First Light Ct (+1-305-555-7887).
Compared against Baltimore, MD Emergency Medicine peers
659 annual services across 562 beneficiaries
Standard deviations from MD Emergency 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 | 297 | 14th | $246 – $337 |
| 99213 | Established Preventive & Chronic Care Visit | 171 | 16th | $188 – $258 |
| 93000 | In-Office 12-Lead Resting Electrocardiogram | 86 | 19th | $90 – $123 |
| G0439 | Annual Preventive Wellness & Cardiometabolic Risk Assessment | 66 | 19th | $289 – $396 |
| 99204 | Comprehensive New Patient Internal Medicine Diagnostic Visit | 40 | 12th | $342 – $469 |
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Dr. Yvonne Oseiwe-Williams, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Oseiwe-Williams National Provider Identifier | NPI #1538301676 (MD) | CMS NPPES Registry (21237) |
| Dr. Oseiwe-Williams Baltimore CMS Volume Rank | 14.00th Pct (659 CMS svcs; Z -0.464σ) | CMS Medicare Part B (MD Emergency Medicine) |
| Fair Cash-Pay New-Patient Benchmark | $209.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Baltimore, MD) |
| Waiting-Room Wait Time & Cash Friendliness | $209.00 avg paid • 17 min lobby wait | 7 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.94/5 Listening • 4.52/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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