Dr. Courtney O'brien, DO
2655 1st St Ste 380, Simi Valley, CA 93065 • +1-287-555-6181
Medical Education: Accredited U.S. Medical School (Class of 2008)
What This Doctor Actually Performs: CMS Medicare Utilization & Simi Valley Percentiles
NPI #1609396514 • CBSA Regional • Internal Medicine
Within the Simi Valley, CA (CBSA local) Internal Medicine cohort, Dr. Courtney O'brien, DO with sub-specialty concentration in 38 Active CMS HCPCS Codes ranks at the 75th municipal percentile and 85.26th CA percentile (+0.02σ Z-score) based on 4,948 billed procedures for 291 patients.
Procedural volume for Dr. O'brien is led by HCPCS 99214 (Moderate-to-High Complexity Internal Medicine Follow-Up — 483 annual services, $57–$78 GPCI cash estimate), followed by CPT 99213 (Established Preventive & Chronic Care Visit, 279/yr) and CPT 93000 (In-Office 12-Lead Resting Electrocardiogram, 140/yr).
Direct cash-pay transparency modeling sets Dr. O'brien's baseline new-consult rate near $239.00 in Simi Valley, CA (cash-pay accepted, hybrid in-clinic and telehealth video consults, 16-minute average reception wait).
Credentialed as an DO specialist with 18 years post-graduation experience since completing medical school at an LCME/COCA institution (2008), Dr. O'brien coordinates 38 Active CMS HCPCS Codes workups from 2655 1st St Ste 380 (+1-287-555-6181).
Compared against Simi Valley, CA Internal Medicine peers
4,948 annual services across 291 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 | 483 | 75th | $57 – $78 |
| 99213 | Established Preventive & Chronic Care Visit | 279 | 78th | $44 – $60 |
| 93000 | In-Office 12-Lead Resting Electrocardiogram | 140 | 75th | $25 – $40 |
| G0439 | Annual Preventive Wellness & Cardiometabolic Risk Assessment | 107 | 77th | $67 – $92 |
| 99204 | Comprehensive New Patient Internal Medicine Diagnostic Visit | 64 | 78th | $79 – $109 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (38 HCPCS billing breadth) | 3,874 | 75th | $51 – $74 |
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Dr. Courtney O'brien, DO Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. O'brien National Provider Identifier | NPI #1609396514 (DO) | CMS NPPES Registry (93065) |
| Dr. O'brien Simi Valley CMS Volume Rank | 75.00th Pct (4,948 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 (Simi Valley, CA) |
| Waiting-Room Wait Time & Cash Friendliness | $239.00 avg paid • 16 min lobby wait | 4 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.61/5 Listening • 4.75/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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