Dr. William Johnstone, MD
101 Heart DR, Greenville, NC 27834 • +1-673-555-3898
Medical Education: Accredited U.S. Medical School (Class of 2008)
What This Doctor Actually Performs: CMS Medicare Utilization & Greenville Percentiles
NPI #1326433046 • CBSA Regional • Family Practice
Dr. William Johnstone, MD (NPI #1326433046) practices Family Practice in Greenville, NC (27834) with sub-specialty concentration in 37 Active CMS HCPCS Codes, recording 1,686 annual CMS services across 212 distinct beneficiaries—placing this practice as a mid-cohort balanced caseload (57.5th Greenville percentile) (-0.13σ vs NC state mean, 53.49th statewide percentile).
Procedural volume for Dr. Johnstone is led by HCPCS 99214 (Comprehensive Primary Care & Chronic Protocol Management — 643 annual services, $116–$159 GPCI cash estimate), followed by CPT 99213 (Focused Acute & Preventive Primary Care Evaluation, 475/yr) and CPT G0439 (Annual Wellness Biomarker & Preventive Screening Visit, 184/yr).
Self-pay new patient consultations with Dr. Johnstone (CPT 99204 GPCI-adjusted benchmark) estimate around $209.00 (community reported average: $209.00) with hybrid in-clinic and telehealth video consults, 14-minute average reception wait, and a 4.60/5 modern protocol openness score across 4 patient logs.
Clinical background for Dr. Johnstone (MD, NPI #1326433046) includes accredited doctoral training (2008, 18 yrs in practice) and virtual + in-office availability across NC.
Compared against Greenville, NC Family Practice peers
1,686 annual services across 212 beneficiaries
Standard deviations from NC 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 | 643 | 57.5th | $116 – $159 |
| 99213 | Focused Acute & Preventive Primary Care Evaluation | 475 | 57.5th | $89 – $122 |
| G0439 | Annual Wellness Biomarker & Preventive Screening Visit | 184 | 58.5th | $133 – $182 |
| 36415 | Routine Venipuncture Blood Biomarker Collection | 138 | 56.5th | $25 – $40 |
| 99204 | New Patient Primary Care Intake & Diagnostic Plan | 92 | 54.5th | $159 – $218 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (37 HCPCS billing breadth) | 155 | 57.5th | $105 – $152 |
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Dr. William Johnstone, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Johnstone National Provider Identifier | NPI #1326433046 (MD) | CMS NPPES Registry (27834) |
| Dr. Johnstone Greenville CMS Volume Rank | 57.50th Pct (1,686 CMS svcs; Z -0.130σ) | CMS Medicare Part B (NC Family Practice) |
| Fair Cash-Pay New-Patient Benchmark | $209.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Greenville, NC) |
| Waiting-Room Wait Time & Cash Friendliness | $209.00 avg paid • 14 min lobby wait | 4 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.94/5 Listening • 4.60/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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