Dr. John Ellyn, MD
31 Smith St, Charleston, SC 29401 • +1-903-555-2057
Medical Education: Accredited U.S. Medical School (Class of 2009)
What This Doctor Actually Performs: CMS Medicare Utilization & Charleston Percentiles
NPI #1952394330 • CBSA Regional • Ophthalmology
Operating out of Charleston, SC (31 Smith St), Ophthalmology clinician Dr. John Ellyn, MD (accredited MD/DO training, 2009) maintains a focused low-volume boutique caseload (6.25th Charleston percentile) (4.11th SC percentile; Z-score -0.46σ across 892 documented services) with sub-specialty concentration in 13 Active CMS HCPCS Codes.
Among 5 tracked CMS fee-schedule codes for Dr. Ellyn (averaging 2.4 services per beneficiary), 92014 (Comprehensive Ophthalmologic Slit-Lamp & Dilated Retinal Exam) represents 37% of tracked volume (330 encounters), paired with 92134 (232x).
Uninsured and high-deductible cash patients visiting Dr. John Ellyn in Charleston (29401) face an estimated $209.00 initial evaluation fee at 31 Smith St (hybrid in-clinic and telehealth video consults; 11-minute average reception wait; bedside manner 4.92/5 from 11 verified reports).
Patients evaluating Dr. John Ellyn in ZIP 29401 note 17 years of post-doctoral tenure (null, 2009) alongside 2.4 annual CMS procedures per patient.
Compared against Charleston, SC Ophthalmology peers
892 annual services across 374 beneficiaries
Standard deviations from SC 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 | 330 | 12th | $134 – $184 |
| 92134 | Scanning Computerized Ophthalmic Retinal OCT Imaging | 232 | 12th | $74 – $101 |
| 92083 | Extended Threshold Visual Field Glaucoma Perimetry | 152 | 12th | $89 – $121 |
| 92004 | New Patient Complete Medical Eye & IOP Evaluation | 107 | 12th | $161 – $221 |
| 66984 | Extracapsular Cataract Removal w/ Intraocular Lens Implant | 71 | 12th | $591 – $810 |
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Dr. John Ellyn, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Ellyn National Provider Identifier | NPI #1952394330 (MD) | CMS NPPES Registry (29401) |
| Dr. Ellyn Charleston CMS Volume Rank | 6.25th Pct (892 CMS svcs; Z -0.455σ) | CMS Medicare Part B (SC Ophthalmology) |
| Fair Cash-Pay New-Patient Benchmark | $209.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Charleston, SC) |
| Waiting-Room Wait Time & Cash Friendliness | $209.00 avg paid • 11 min lobby wait | 11 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.92/5 Listening • 4.40/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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