Dr. Joseph Chammas, MD
8010 Frost St, Suite 408, San Diego, CA 92123 • +1-575-555-5766
Medical Education: Accredited U.S. Medical School (Class of 1992)
What This Doctor Actually Performs: CMS Medicare Utilization & San Diego Percentiles
NPI #1902888522 • CBSA Regional • Thoracic Surgery
Within the San Diego, CA (CBSA local) Thoracic Surgery cohort, Dr. Joseph Chammas, MD with sub-specialty concentration in 66 Active CMS HCPCS Codes ranks at the 99th municipal percentile and 77.27th CA percentile (+0.67σ Z-score) based on 2,420 billed procedures for 283 patients.
Medicare Part B line-item claims for Dr. Joseph Chammas (92123) place 99214 at the top of the practice ledger (554 yearly units, 99th metro rank), rounded out by 99213 and 93000.
For out-of-network patients contacting +1-575-555-5766, Dr. Chammas's practice posts a $239.00 GPCI self-pay consult estimate ($239.00 patient-logged median, 4.68/5 composite reality score over 3 submissions).
Spanning 34 years of clinical practice following 1992 graduation from medical training, Dr. Joseph Chammas integrates 66 Active CMS HCPCS Codes diagnostics for San Diego metro patients.
Top 10% Thoracic Surgery volume leader in San Diego, CA
2,420 annual services across 283 beneficiaries
Standard deviations from CA Thoracic Surgery 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 | 554 | 99th | $659 – $903 |
| 99213 | Established Preventive & Chronic Care Visit | 320 | 98th | $504 – $691 |
| 93000 | In-Office 12-Lead Resting Electrocardiogram | 160 | 97th | $241 – $330 |
| G0439 | Annual Preventive Wellness & Cardiometabolic Risk Assessment | 123 | 99th | $774 – $1060 |
| 99204 | Comprehensive New Patient Internal Medicine Diagnostic Visit | 74 | 99.5th | $917 – $1257 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (66 HCPCS billing breadth) | 1,190 | 99th | $594 – $861 |
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Dr. Joseph Chammas, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Chammas National Provider Identifier | NPI #1902888522 (MD) | CMS NPPES Registry (92123) |
| Dr. Chammas San Diego CMS Volume Rank | 99.00th Pct (2,420 CMS svcs; Z +0.665σ) | CMS Medicare Part B (CA Thoracic Surgery) |
| Fair Cash-Pay New-Patient Benchmark | $239.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (San Diego, 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 • 4.78/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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