Dr. John Marston, MD
5246 Brittany DR, Baton Rouge, LA 70808 • +1-501-555-6427
Medical Education: Accredited U.S. Medical School (Class of 1995)
What This Doctor Actually Performs: CMS Medicare Utilization & Baton Rouge Percentiles
NPI #1093219701 • CBSA Regional • Internal Medicine
Statistical peer benchmarking across LA Internal Medicine providers positions Dr. John Marston, MD in Baton Rouge at -0.24σ (40th city percentile / 49.26th state percentile, 203 Medicare beneficiaries), with clinical focus spanning 91 Active CMS HCPCS Codes.
Procedural volume for Dr. Marston is led by HCPCS 99214 (Moderate-to-High Complexity Internal Medicine Follow-Up — 644 annual services, $79–$108 GPCI cash estimate), followed by CPT 99213 (Established Preventive & Chronic Care Visit, 372/yr) and CPT 93000 (In-Office 12-Lead Resting Electrocardiogram, 186/yr).
At 5246 Brittany DR (70808), Dr. John Marston, MD accommodates direct self-pay scheduling (in-person clinic visits only) at ~$209.00 per new consult (4.55/5 bedside rating).
NPI registry verification (#1093219701) confirms Dr. John Marston's MD standing serving CBSA 70808 with a 4.52/5 patient scorecard.
Compared against Baton Rouge, LA Internal Medicine peers
1,490 annual services across 203 beneficiaries
Standard deviations from LA 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 | 644 | 40th | $79 – $108 |
| 99213 | Established Preventive & Chronic Care Visit | 372 | 35th | $60 – $83 |
| 93000 | In-Office 12-Lead Resting Electrocardiogram | 186 | 37th | $29 – $44 |
| G0439 | Annual Preventive Wellness & Cardiometabolic Risk Assessment | 143 | 39th | $93 – $127 |
| 99204 | Comprehensive New Patient Internal Medicine Diagnostic Visit | 86 | 36th | $110 – $150 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (91 HCPCS billing breadth) | 60 | 40th | $71 – $103 |
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Dr. John Marston, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Marston National Provider Identifier | NPI #1093219701 (MD) | CMS NPPES Registry (70808) |
| Dr. Marston Baton Rouge CMS Volume Rank | 40.00th Pct (1,490 CMS svcs; Z -0.239σ) | CMS Medicare Part B (LA Internal Medicine) |
| Fair Cash-Pay New-Patient Benchmark | $209.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Baton Rouge, LA) |
| Waiting-Room Wait Time & Cash Friendliness | $209.00 avg paid • 9 min lobby wait | 3 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.55/5 Listening • 4.42/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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