Dr. Derek Johnson, DO
350 John Muir Pkwy Ste 105, Brentwood, CA 94513 • +1-247-555-4056
Medical Education: Accredited U.S. Medical School (Class of 1992)
What This Doctor Actually Performs: CMS Medicare Utilization & Brentwood Percentiles
NPI #1407876063 • CBSA Regional • Family Practice
Within the Brentwood, CA (CBSA local) Family Practice cohort, Dr. Derek Johnson, DO with sub-specialty concentration in 100 Active CMS HCPCS Codes ranks at the 90.91th municipal percentile and 98.57th CA percentile (+0.57σ Z-score) based on 23,256 billed procedures for 9,380 patients.
Fee-schedule auditing of NPI 1407876063 highlights 9348 annual claims for 99214 (90.91th Brentwood percentile; $50–$68 self-pay corridor) plus 6900 encounters under 99213 and 2671 under G0439.
For out-of-network patients contacting +1-247-555-4056, Dr. Johnson's practice posts a $239.00 GPCI self-pay consult estimate ($239.00 patient-logged median, 4.63/5 composite reality score over 18 submissions).
From 350 John Muir Pkwy Ste 105 in Brentwood (+1-247-555-4056), Dr. Johnson, DO (34-year clinical track record) delivers 100 Active CMS HCPCS Codes care.
Top 10% Family Practice volume leader in Brentwood, CA
23,256 annual services across 9,380 beneficiaries
Standard deviations from CA 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 | 9,348 | 90.91th | $50 – $68 |
| 99213 | Focused Acute & Preventive Primary Care Evaluation | 6,900 | 91.91th | $38 – $53 |
| G0439 | Annual Wellness Biomarker & Preventive Screening Visit | 2,671 | 93.91th | $57 – $78 |
| 36415 | Routine Venipuncture Blood Biomarker Collection | 2,003 | 94.91th | $25 – $40 |
| 99204 | New Patient Primary Care Intake & Diagnostic Plan | 1,335 | 93.91th | $68 – $93 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (100 HCPCS billing breadth) | 999 | 90.91th | $45 – $65 |
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Dr. Derek Johnson, DO Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Johnson National Provider Identifier | NPI #1407876063 (DO) | CMS NPPES Registry (94513) |
| Dr. Johnson Brentwood CMS Volume Rank | 90.91th Pct (23,256 CMS svcs; Z +0.569σ) | CMS Medicare Part B (CA Family Practice) |
| Fair Cash-Pay New-Patient Benchmark | $239.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Brentwood, CA) |
| Waiting-Room Wait Time & Cash Friendliness | $239.00 avg paid • 18 min lobby wait | 18 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.92/5 Listening • 4.55/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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