Dr. Roberto Gamarra, MD
30055 Northwestern Hwy, Suite 250, Farmington Hills, MI 48334 • +1-805-555-1485
Medical Education: Accredited U.S. Medical School (Class of 2018)
What This Doctor Actually Performs: CMS Medicare Utilization & Farmington Hills Percentiles
NPI #1013039734 • CBSA Regional • Gastroenterology
Within the Farmington Hills, MI (CBSA local) Gastroenterology cohort, Dr. Roberto Gamarra, MD with sub-specialty concentration in 64 Active CMS HCPCS Codes ranks at the 77.78th municipal percentile and 97.12th MI percentile (+1.60σ Z-score) based on 9,569 billed procedures for 516 patients.
Dr. Gamarra's longitudinal care intensity (18.5 billed units per patient across 516 individuals) centers on 99214 (421 annual units) and 45380 ($124–$170 cash range).
Cash-pay intake data for NPI 1013039734 (30055 Northwestern Hwy, Suite 250, Farmington Hills) indicates $209.00 typical out-of-pocket visit spend against a $209.00 locality benchmark, paired with 16-minute average reception wait and 4.78/5 biomarker openness.
Patients evaluating Dr. Roberto Gamarra in ZIP 48334 note 8 years of post-doctoral tenure (null, 2018) alongside 18.5 annual CMS procedures per patient.
Compared against Farmington Hills, MI Gastroenterology peers
9,569 annual services across 516 beneficiaries
Standard deviations from MI 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 | 421 | 77.78th | $52 – $71 |
| 45380 | Diagnostic Colonoscopy w/ Mucosal Tissue Biopsy | 284 | 79.78th | $124 – $170 |
| 43239 | Upper GI Esophagogastroduodenoscopy (EGD) w/ Biopsy | 239 | 76.78th | $103 – $141 |
| 45385 | Colonoscopy w/ Snare Polypectomy Lesion Removal | 114 | 73.78th | $138 – $190 |
| 99204 | New Patient Digestive & Hepatology Consultation | 80 | 82.78th | $73 – $100 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (64 HCPCS billing breadth) | 8,432 | 77.78th | $49 – $71 |
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Dr. Roberto Gamarra, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Gamarra National Provider Identifier | NPI #1013039734 (MD) | CMS NPPES Registry (48334) |
| Dr. Gamarra Farmington Hills CMS Volume Rank | 77.78th Pct (9,569 CMS svcs; Z +1.600σ) | CMS Medicare Part B (MI Gastroenterology) |
| Fair Cash-Pay New-Patient Benchmark | $209.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Farmington Hills, MI) |
| Waiting-Room Wait Time & Cash Friendliness | $209.00 avg paid • 16 min lobby wait | 8 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.64/5 Listening • 4.78/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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