Dr. David Sappenfield, MD
4102 N Roxboro St, Durham, NC 27704 • +1-606-555-7484
Medical Education: Accredited U.S. Medical School (Class of 2013)
What This Doctor Actually Performs: CMS Medicare Utilization & Durham Percentiles
NPI #1639161862 • CBSA Regional • Ophthalmology
Dr. David Sappenfield, MD (NPI #1639161862) practices Ophthalmology in Durham, NC (27704) with sub-specialty concentration in 26 Active CMS HCPCS Codes, recording 5,055 annual CMS services across 262 distinct beneficiaries—placing this practice as a upper-quartile active clinical volume (76.19th Durham percentile) (-0.13σ vs NC state mean, 72.51th statewide percentile).
Fee-schedule auditing of NPI 1639161862 highlights 282 annual claims for 92014 (76.19th Durham percentile; $158–$217 self-pay corridor) plus 198 encounters under 92134 and 129 under 92083.
Cash-pay intake data for NPI 1639161862 (4102 N Roxboro St, Durham) indicates $209.00 typical out-of-pocket visit spend against a $209.00 locality benchmark, paired with 22-minute average reception wait and 4.90/5 biomarker openness.
Clinical background for Dr. Sappenfield (MD, NPI #1639161862) includes accredited doctoral training (2013, 13 yrs in practice) and dedicated on-site consultations at 4102 N Roxboro St.
Compared against Durham, NC Ophthalmology peers
5,055 annual services across 262 beneficiaries
Standard deviations from NC 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 | 282 | 76.19th | $158 – $217 |
| 92134 | Scanning Computerized Ophthalmic Retinal OCT Imaging | 198 | 71.19th | $87 – $119 |
| 92083 | Extended Threshold Visual Field Glaucoma Perimetry | 129 | 74.19th | $104 – $143 |
| 92004 | New Patient Complete Medical Eye & IOP Evaluation | 91 | 81.19th | $190 – $261 |
| 66984 | Extracapsular Cataract Removal w/ Intraocular Lens Implant | 61 | 79.19th | $697 – $954 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (26 HCPCS billing breadth) | 4,294 | 76.19th | $139 – $202 |
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Dr. David Sappenfield, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Sappenfield National Provider Identifier | NPI #1639161862 (MD) | CMS NPPES Registry (27704) |
| Dr. Sappenfield Durham CMS Volume Rank | 76.19th Pct (5,055 CMS svcs; Z -0.127σ) | CMS Medicare Part B (NC Ophthalmology) |
| Fair Cash-Pay New-Patient Benchmark | $209.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Durham, NC) |
| Waiting-Room Wait Time & Cash Friendliness | $209.00 avg paid • 22 min lobby wait | 24 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.84/5 Listening • 4.90/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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