Dr. Brett Gerwin, MD
979 E 3rd St, Suite 230, Chattanooga, TN 37403 • +1-878-555-3771
Medical Education: Accredited U.S. Medical School (Class of 2004)
What This Doctor Actually Performs: CMS Medicare Utilization & Chattanooga Percentiles
NPI #1306992003 • CBSA Regional • Ophthalmology
Anchored in Chattanooga, TN 37403, Dr. Brett Gerwin, MD (NPI 1306992003) logged 10,401 annual procedures (upper-quartile active clinical volume (88.89th Chattanooga percentile), 78.91th TN percentile, -0.15σ) with sub-specialty concentration in 37 Active CMS HCPCS Codes.
Medicare Part B line-item claims for Dr. Brett Gerwin (37403) place 92014 at the top of the practice ledger (1229 yearly units, 88.89th metro rank), rounded out by 92134 and 92083.
Uninsured and high-deductible cash patients visiting Dr. Brett Gerwin in Chattanooga (37403) face an estimated $201.00 initial evaluation fee at 979 E 3rd St, Suite 230 (in-person clinic visits only; 16-minute average reception wait; bedside manner 4.94/5 from 6 verified reports).
NPI registry verification (#1306992003) confirms Dr. Brett Gerwin's MD standing serving CBSA 37403 with a 4.95/5 patient scorecard.
Compared against Chattanooga, TN Ophthalmology peers
10,401 annual services across 574 beneficiaries
Standard deviations from TN Ophthalmology mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 92014 | Comprehensive Ophthalmologic Slit-Lamp & Dilated Retinal Exam | 1,229 | 88.89th | $150 – $205 |
| 92134 | Scanning Computerized Ophthalmic Retinal OCT Imaging | 863 | 90.89th | $83 – $113 |
| 92083 | Extended Threshold Visual Field Glaucoma Perimetry | 565 | 85.89th | $99 – $136 |
| 92004 | New Patient Complete Medical Eye & IOP Evaluation | 399 | 93.89th | $180 – $247 |
| 66984 | Extracapsular Cataract Removal w/ Intraocular Lens Implant | 266 | 90.89th | $661 – $905 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (37 HCPCS billing breadth) | 7,080 | 88.89th | $132 – $191 |
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Dr. Brett Gerwin, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Gerwin National Provider Identifier | NPI #1306992003 (MD) | CMS NPPES Registry (37403) |
| Dr. Gerwin Chattanooga CMS Volume Rank | 88.89th Pct (10,401 CMS svcs; Z -0.148σ) | CMS Medicare Part B (TN Ophthalmology) |
| 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 • 16 min lobby wait | 6 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.94/5 Listening • 4.76/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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