Dr. Scott Zehnder, MD
845 N New Ballas Ct, 2nd Floor, Saint Louis, MO 63141 • +1-642-555-8334
Medical Education: Accredited U.S. Medical School (Class of 1997)
What This Doctor Actually Performs: CMS Medicare Utilization & Saint Louis Percentiles
NPI #1104020957 • CBSA Regional • Orthopedic Surgery
CMS Medicare Part B utilization records credit Dr. Scott Zehnder (MD, NPI 1104020957) at 845 N New Ballas Ct, 2nd Floor in Saint Louis with 7,660 annual clinical services (350 beneficiaries), corresponding to a +0.46σ regional deviation and top-decile high-throughput specialist (90.12th percentile in Saint Louis) with sub-specialty concentration in 64 Active CMS HCPCS Codes.
Dr. Zehnder's longitudinal care intensity (21.9 billed units per patient across 350 individuals) centers on 99213 (439 annual units) and 20610 ($37–$52 cash range).
Uninsured and high-deductible cash patients visiting Dr. Scott Zehnder in Saint Louis (63141) face an estimated $209.00 initial evaluation fee at 845 N New Ballas Ct, 2nd Floor (hybrid in-clinic and telehealth video consults; 12-minute average reception wait; bedside manner 4.67/5 from 8 verified reports).
NPI registry verification (#1104020957) confirms Dr. Scott Zehnder's MD standing serving CBSA 63141 with a 4.69/5 patient scorecard.
Top 10% Orthopedic Surgery volume leader in Saint Louis, MO
7,660 annual services across 350 beneficiaries
Standard deviations from MO Orthopedic Surgery mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 99213 | Focused Orthopedic Joint & Spine Mobility Evaluation | 439 | 90.12th | $35 – $50 |
| 20610 | Major Joint (Knee/Shoulder/Hip) Aspiration or Injection | 329 | 93.12th | $37 – $52 |
| 73562 | Radiologic Weight-Bearing 3-View Knee Examination | 232 | 90.12th | $25 – $40 |
| 99203 | New Patient Musculoskeletal Injury & Surgical Triage | 134 | 89.12th | $50 – $68 |
| 27447 | Total Knee Arthroplasty Joint Reconstruction | 85 | 90.12th | $321 – $440 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (64 HCPCS billing breadth) | 6,440 | 90.12th | $45 – $65 |
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Dr. Scott Zehnder, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Zehnder National Provider Identifier | NPI #1104020957 (MD) | CMS NPPES Registry (63141) |
| Dr. Zehnder Saint Louis CMS Volume Rank | 90.12th Pct (7,660 CMS svcs; Z +0.464σ) | CMS Medicare Part B (MO Orthopedic Surgery) |
| 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 • 12 min lobby wait | 8 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.67/5 Listening • 4.50/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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