Dr. Matthew Kellner, MD
4000 Highway 9 E, Little River, SC 29566 • +1-443-555-7948
Medical Education: Accredited U.S. Medical School (Class of 1996)
What This Doctor Actually Performs: CMS Medicare Utilization & Little River Percentiles
NPI #1427553437 • CBSA Regional • Internal Medicine
Operating out of Little River, SC (4000 Highway 9 E), Internal Medicine clinician Dr. Matthew Kellner, MD (accredited MD/DO training, 1996) maintains a focused low-volume boutique caseload (33.33th Little River percentile) (36.16th SC percentile; Z-score -0.29σ across 1,136 documented services) with sub-specialty concentration in 12 Active CMS HCPCS Codes.
Procedural volume for Dr. Kellner is led by HCPCS 99214 (Moderate-to-High Complexity Internal Medicine Follow-Up — 511 annual services, $168–$230 GPCI cash estimate), followed by CPT 99213 (Established Preventive & Chronic Care Visit, 295/yr) and CPT 93000 (In-Office 12-Lead Resting Electrocardiogram, 148/yr).
Self-pay new patient consultations with Dr. Kellner (CPT 99204 GPCI-adjusted benchmark) estimate around $209.00 (community reported average: $209.00) with hybrid in-clinic and telehealth video consults, 15-minute average reception wait, and a 4.69/5 modern protocol openness score across 13 patient logs.
Credentialed as an MD specialist with 30 years post-graduation experience since completing medical school at an LCME/COCA institution (1996), Dr. Kellner coordinates 12 Active CMS HCPCS Codes workups from 4000 Highway 9 E (+1-443-555-7948).
Compared against Little River, SC Internal Medicine peers
1,136 annual services across 408 beneficiaries
Standard deviations from SC Internal Medicine mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 99214 | Moderate-to-High Complexity Internal Medicine Follow-Up | 511 | 33.33th | $168 – $230 |
| 99213 | Established Preventive & Chronic Care Visit | 295 | 37.33th | $128 – $176 |
| 93000 | In-Office 12-Lead Resting Electrocardiogram | 148 | 33.33th | $61 – $84 |
| G0439 | Annual Preventive Wellness & Cardiometabolic Risk Assessment | 114 | 38.33th | $197 – $270 |
| 99204 | Comprehensive New Patient Internal Medicine Diagnostic Visit | 68 | 38.33th | $233 – $320 |
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Dr. Matthew Kellner, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Kellner National Provider Identifier | NPI #1427553437 (MD) | CMS NPPES Registry (29566) |
| Dr. Kellner Little River CMS Volume Rank | 33.33th Pct (1,136 CMS svcs; Z -0.292σ) | CMS Medicare Part B (SC Internal Medicine) |
| Fair Cash-Pay New-Patient Benchmark | $209.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Little River, SC) |
| Waiting-Room Wait Time & Cash Friendliness | $209.00 avg paid • 15 min lobby wait | 13 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.59/5 Listening • 4.69/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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