Dr. Siobhan Duff, MD
961 Spring Creek Rd, Chattanooga, TN 37412 • +1-872-555-7603
Medical Education: Accredited U.S. Medical School (Class of 2008)
What This Doctor Actually Performs: CMS Medicare Utilization & Chattanooga Percentiles
NPI #1588638910 • CBSA Regional • Family Practice
Within the Chattanooga, TN (CBSA local) Family Practice cohort, Dr. Siobhan Duff, MD with sub-specialty concentration in 117 Active CMS HCPCS Codes ranks at the 80th municipal percentile and 76.84th TN percentile (+0.15σ Z-score) based on 5,091 billed procedures for 381 patients.
Medicare Part B line-item claims for Dr. Siobhan Duff (37412) place 99214 at the top of the practice ledger (2005 yearly units, 80th metro rank), rounded out by 99213 and G0439.
Direct cash-pay transparency modeling sets Dr. Duff's baseline new-consult rate near $201.00 in Chattanooga, TN (cash-pay accepted, hybrid in-clinic and telehealth video consults, 20-minute average reception wait).
Credentialed as an MD specialist with 18 years post-graduation experience since completing medical school at an LCME/COCA institution (2008), Dr. Duff coordinates 117 Active CMS HCPCS Codes workups from 961 Spring Creek Rd (+1-872-555-7603).
Compared against Chattanooga, TN Family Practice peers
5,091 annual services across 381 beneficiaries
Standard deviations from TN 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 | 2,005 | 80th | $58 – $79 |
| 99213 | Focused Acute & Preventive Primary Care Evaluation | 1,480 | 77th | $44 – $60 |
| G0439 | Annual Wellness Biomarker & Preventive Screening Visit | 573 | 84th | $66 – $91 |
| 36415 | Routine Venipuncture Blood Biomarker Collection | 430 | 81th | $25 – $40 |
| 99204 | New Patient Primary Care Intake & Diagnostic Plan | 286 | 81th | $79 – $108 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (117 HCPCS billing breadth) | 318 | 80th | $52 – $75 |
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Dr. Siobhan Duff, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Duff National Provider Identifier | NPI #1588638910 (MD) | CMS NPPES Registry (37412) |
| Dr. Duff Chattanooga CMS Volume Rank | 80.00th Pct (5,091 CMS svcs; Z +0.147σ) | CMS Medicare Part B (TN Family Practice) |
| Fair Cash-Pay New-Patient Benchmark | $201.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Chattanooga, TN) |
| Waiting-Room Wait Time & Cash Friendliness | $201.00 avg paid • 20 min lobby wait | 16 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.68/5 Listening • 4.82/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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