Dr. David Sewall, MD
3023 N Ballas Rd Ste 200d, Saint Louis, MO 63131 • +1-805-555-3590
Medical Education: Accredited U.S. Medical School (Class of 1999)
What This Doctor Actually Performs: CMS Medicare Utilization & Saint Louis Percentiles
NPI #1336149111 • CBSA Regional • Interventional Cardiology
Operating out of Saint Louis, MO (3023 N Ballas Rd Ste 200d), Interventional Cardiology clinician Dr. David Sewall, MD (accredited MD/DO training, 1999) maintains a mid-cohort balanced caseload (39.13th Saint Louis percentile) (45.1th MO percentile; Z-score -0.30σ across 2,309 documented services) with sub-specialty concentration in 49 Active CMS HCPCS Codes.
Fee-schedule auditing of NPI 1336149111 highlights 1017 annual claims for 99214 (39.13th Saint Louis percentile; $101–$138 self-pay corridor) plus 587 encounters under 99213 and 294 under 93000.
Self-pay new patient consultations with Dr. Sewall (CPT 99204 GPCI-adjusted benchmark) estimate around $209.00 (community reported average: $209.00) with hybrid in-clinic and telehealth video consults, 17-minute average reception wait, and a 4.69/5 modern protocol openness score across 7 patient logs.
Spanning 27 years of clinical practice following 1999 graduation from medical training, Dr. David Sewall integrates 49 Active CMS HCPCS Codes diagnostics for Saint Louis metro patients.
Compared against Saint Louis, MO Interventional Cardiology peers
2,309 annual services across 1,011 beneficiaries
Standard deviations from MO Interventional Cardiology 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 | 1,017 | 39.13th | $101 – $138 |
| 99213 | Established Preventive & Chronic Care Visit | 587 | 42.13th | $77 – $106 |
| 93000 | In-Office 12-Lead Resting Electrocardiogram | 294 | 44.13th | $37 – $52 |
| G0439 | Annual Preventive Wellness & Cardiometabolic Risk Assessment | 226 | 38.13th | $119 – $162 |
| 99204 | Comprehensive New Patient Internal Medicine Diagnostic Visit | 136 | 39.13th | $141 – $193 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (49 HCPCS billing breadth) | 50 | 39.13th | $91 – $132 |
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Dr. David Sewall, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Sewall National Provider Identifier | NPI #1336149111 (MD) | CMS NPPES Registry (63131) |
| Dr. Sewall Saint Louis CMS Volume Rank | 39.13th Pct (2,309 CMS svcs; Z -0.300σ) | CMS Medicare Part B (MO Interventional Cardiology) |
| Fair Cash-Pay New-Patient Benchmark | $209.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Saint Louis, MO) |
| 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 • 4.69/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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