Dr. M. Mazen Jamal, MD
2097 Compton Ave Ste 103, Corona, CA 92881 • +1-522-555-3563
Medical Education: Accredited U.S. Medical School (Class of 2016)
What This Doctor Actually Performs: CMS Medicare Utilization & Corona Percentiles
NPI #1003916727 • CBSA Regional • Gastroenterology
Within the Corona, CA (CBSA local) Gastroenterology cohort, Dr. M. Mazen Jamal, MD with sub-specialty concentration in 41 Active CMS HCPCS Codes ranks at the 50th municipal percentile and 79th CA percentile (-0.01σ Z-score) based on 2,013 billed procedures for 810 patients.
Medicare Part B line-item claims for Dr. M. Mazen Jamal (92881) place 99214 at the top of the practice ledger (745 yearly units, 50th metro rank), rounded out by 45380 and 43239.
For out-of-network patients contacting +1-522-555-3563, Dr. Jamal's practice posts a $239.00 GPCI self-pay consult estimate ($239.00 patient-logged median, 4.72/5 composite reality score over 3 submissions).
Patients evaluating Dr. M. Mazen Jamal in ZIP 92881 note 10 years of post-doctoral tenure (null, 2016) alongside 2.5 annual CMS procedures per patient.
Compared against Corona, CA Gastroenterology peers
2,013 annual services across 810 beneficiaries
Standard deviations from CA Gastroenterology mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 99214 | Established Gastroenterology, GERD & IBD Evaluation | 745 | 50th | $239 – $327 |
| 45380 | Diagnostic Colonoscopy w/ Mucosal Tissue Biopsy | 503 | 55th | $575 – $788 |
| 43239 | Upper GI Esophagogastroduodenoscopy (EGD) w/ Biopsy | 423 | 55th | $478 – $654 |
| 45385 | Colonoscopy w/ Snare Polypectomy Lesion Removal | 201 | 54th | $640 – $877 |
| 99204 | New Patient Digestive & Hepatology Consultation | 141 | 51th | $336 – $461 |
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Dr. M. Mazen Jamal, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Jamal National Provider Identifier | NPI #1003916727 (MD) | CMS NPPES Registry (92881) |
| Dr. Jamal Corona CMS Volume Rank | 50.00th Pct (2,013 CMS svcs; Z -0.007σ) | CMS Medicare Part B (CA Gastroenterology) |
| Fair Cash-Pay New-Patient Benchmark | $239.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Corona, CA) |
| Waiting-Room Wait Time & Cash Friendliness | $239.00 avg paid • 17 min lobby wait | 3 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.91/5 Listening • 4.65/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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