Dr. Diahann Marshall, MD
301 4th St Ste A, Alexandria, LA 71301 • +1-698-555-1606
Medical Education: Accredited U.S. Medical School (Class of 2003)
What This Doctor Actually Performs: CMS Medicare Utilization & Alexandria Percentiles
NPI #1245694231 • CBSA Regional • Family Practice
Dr. Diahann Marshall, MD (NPI #1245694231) practices Family Practice in Alexandria, LA (71301) with sub-specialty concentration in 54 Active CMS HCPCS Codes, recording 777 annual CMS services across 225 distinct beneficiaries—placing this practice as a focused low-volume boutique caseload (3.57th Alexandria percentile) (-0.65σ vs LA state mean, 13.62th statewide percentile).
Fee-schedule auditing of NPI 1245694231 highlights 317 annual claims for 99214 (12th Alexandria percentile; $88–$120 self-pay corridor) plus 234 encounters under 99213 and 90 under G0439.
Uninsured and high-deductible cash patients visiting Dr. Diahann Marshall in Alexandria (71301) face an estimated $209.00 initial evaluation fee at 301 4th St Ste A (hybrid in-clinic and telehealth video consults; 20-minute average reception wait; bedside manner 4.66/5 from 26 verified reports).
NPI registry verification (#1245694231) confirms Dr. Diahann Marshall's MD standing serving CBSA 71301 with a 4.71/5 patient scorecard.
Compared against Alexandria, LA Family Practice peers
777 annual services across 225 beneficiaries
Standard deviations from LA Family Practice mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 99214 | Comprehensive Primary Care & Chronic Protocol Management | 317 | 12th | $88 – $120 |
| 99213 | Focused Acute & Preventive Primary Care Evaluation | 234 | 12th | $67 – $92 |
| G0439 | Annual Wellness Biomarker & Preventive Screening Visit | 90 | 12th | $101 – $138 |
| 36415 | Routine Venipuncture Blood Biomarker Collection | 68 | 12th | $25 – $40 |
| 99204 | New Patient Primary Care Intake & Diagnostic Plan | 45 | 12th | $121 – $165 |
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Dr. Diahann Marshall, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Marshall National Provider Identifier | NPI #1245694231 (MD) | CMS NPPES Registry (71301) |
| Dr. Marshall Alexandria CMS Volume Rank | 3.57th Pct (777 CMS svcs; Z -0.653σ) | CMS Medicare Part B (LA Family Practice) |
| Fair Cash-Pay New-Patient Benchmark | $209.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Alexandria, LA) |
| Waiting-Room Wait Time & Cash Friendliness | $209.00 avg paid • 20 min lobby wait | 26 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.66/5 Listening • 4.87/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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