Dr. Brian Sebastian, MD
651 1st St W, Suite H, Sonoma, CA 95476 • +1-580-555-7450
Medical Education: Accredited U.S. Medical School (Class of 2013)
What This Doctor Actually Performs: CMS Medicare Utilization & Sonoma Percentiles
NPI #1184624637 • CBSA Regional • Internal Medicine
CMS Medicare Part B utilization records credit Dr. Brian Sebastian (MD, NPI 1184624637) at 651 1st St W, Suite H in Sonoma with 3,797 annual clinical services (590 beneficiaries), corresponding to a -0.02σ regional deviation and upper-quartile active clinical volume (83.33th Sonoma percentile) with sub-specialty concentration in 60 Active CMS HCPCS Codes.
Granular CPT/HCPCS billing distribution at 651 1st St W, Suite H shows Dr. Brian Sebastian's primary concentration in Moderate-to-High Complexity Internal Medicine Follow-Up (code 99214: 1472x/yr, 83.33th local percentile) alongside Established Preventive & Chronic Care Visit (99213: 851x/yr, $115–$158).
Direct cash-pay transparency modeling sets Dr. Sebastian's baseline new-consult rate near $239.00 in Sonoma, CA (cash-pay accepted, in-person clinic visits only, 11-minute average reception wait).
Spanning 13 years of clinical practice following 2013 graduation from medical training, Dr. Brian Sebastian integrates 60 Active CMS HCPCS Codes diagnostics for Sonoma metro patients.
Compared against Sonoma, CA Internal Medicine peers
3,797 annual services across 590 beneficiaries
Standard deviations from CA 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 | 1,472 | 83.33th | $151 – $207 |
| 99213 | Established Preventive & Chronic Care Visit | 851 | 80.33th | $115 – $158 |
| 93000 | In-Office 12-Lead Resting Electrocardiogram | 425 | 79.33th | $55 – $76 |
| G0439 | Annual Preventive Wellness & Cardiometabolic Risk Assessment | 327 | 78.33th | $177 – $243 |
| 99204 | Comprehensive New Patient Internal Medicine Diagnostic Visit | 196 | 86.33th | $210 – $288 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (60 HCPCS billing breadth) | 525 | 83.33th | $136 – $197 |
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Dr. Brian Sebastian, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Sebastian National Provider Identifier | NPI #1184624637 (MD) | CMS NPPES Registry (95476) |
| Dr. Sebastian Sonoma CMS Volume Rank | 83.33th Pct (3,797 CMS svcs; Z -0.017σ) | CMS Medicare Part B (CA Internal Medicine) |
| Fair Cash-Pay New-Patient Benchmark | $239.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Sonoma, CA) |
| Waiting-Room Wait Time & Cash Friendliness | $239.00 avg paid • 11 min lobby wait | 3 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.85/5 Listening • 4.42/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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