Dr. Erik Marshall, MD
4755 Ogletown Stanton Rd, Christiana Hospital Suite 1e30, Newark, DE 19718 • +1-644-555-5394
Medical Education: Accredited U.S. Medical School (Class of 2013)
What This Doctor Actually Performs: CMS Medicare Utilization & Newark Percentiles
NPI #1144223850 • CBSA Regional • Cardiology
Operating out of Newark, DE (4755 Ogletown Stanton Rd, Christiana Hospital Suite 1e30), Cardiology clinician Dr. Erik Marshall, MD (accredited MD/DO training, 2013) maintains a mid-cohort balanced caseload (46.43th Newark percentile) (31.34th DE percentile; Z-score -0.82σ across 2,584 documented services) with sub-specialty concentration in 34 Active CMS HCPCS Codes.
Fee-schedule auditing of NPI 1144223850 highlights 982 annual claims for 99214 (46.43th Newark percentile; $100–$137 self-pay corridor) plus 724 encounters under 93000 and 465 under 93306.
Direct cash-pay transparency modeling sets Dr. Marshall's baseline new-consult rate near $209.00 in Newark, DE (cash-pay accepted, in-person clinic visits only, 22-minute average reception wait).
Clinical background for Dr. Marshall (MD, NPI #1144223850) includes accredited doctoral training (2013, 13 yrs in practice) and dedicated on-site consultations at 4755 Ogletown Stanton Rd, Christiana Hospital Suite 1e30.
Compared against Newark, DE Cardiology peers
2,584 annual services across 1,557 beneficiaries
Standard deviations from DE 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 | Established Cardiology Consultation & Hemodynamic Review | 982 | 46.43th | $100 – $137 |
| 93000 | 12-Lead Resting Electrocardiogram (ECG) w/ Interpretation | 724 | 50.43th | $39 – $54 |
| 93306 | Complete Transthoracic Echocardiography w/ Doppler & Color Flow | 465 | 46.43th | $187 – $256 |
| 93224 | 24-Hour Ambulatory ECG Rhythm Monitoring & Analysis | 258 | 51.43th | $117 – $161 |
| 99204 | Comprehensive New Patient Cardiovascular Risk Evaluation | 155 | 43.43th | $144 – $197 |
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Dr. Erik Marshall, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Marshall National Provider Identifier | NPI #1144223850 (MD) | CMS NPPES Registry (19718) |
| Dr. Marshall Newark CMS Volume Rank | 46.43th Pct (2,584 CMS svcs; Z -0.817σ) | CMS Medicare Part B (DE Cardiology) |
| Fair Cash-Pay New-Patient Benchmark | $209.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Newark, DE) |
| Waiting-Room Wait Time & Cash Friendliness | $209.00 avg paid • 22 min lobby wait | 12 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.95/5 Listening • 4.88/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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