Dr. William Chen, MD
5 Medical Plaza DR Ste 140, Roseville, CA 95661 • +1-669-555-6908
Medical Education: Accredited U.S. Medical School (Class of 2018)
What This Doctor Actually Performs: CMS Medicare Utilization & Roseville Percentiles
NPI #1982744942 • CBSA Regional • Gastroenterology
Within the Roseville, CA (CBSA local) Gastroenterology cohort, Dr. William Chen, MD with sub-specialty concentration in 41 Active CMS HCPCS Codes ranks at the 71.43th municipal percentile and 42.26th CA percentile (-0.25σ Z-score) based on 1,095 billed procedures for 366 patients.
Procedural volume for Dr. Chen is led by HCPCS 99214 (Established Gastroenterology, GERD & IBD Evaluation — 405 annual services, $214–$293 GPCI cash estimate), followed by CPT 45380 (Diagnostic Colonoscopy w/ Mucosal Tissue Biopsy, 274/yr) and CPT 43239 (Upper GI Esophagogastroduodenoscopy (EGD) w/ Biopsy, 230/yr).
Cash-pay intake data for NPI 1982744942 (5 Medical Plaza DR Ste 140, Roseville) indicates $239.00 typical out-of-pocket visit spend against a $239.00 locality benchmark, paired with 22-minute average reception wait and 4.67/5 biomarker openness.
Clinical background for Dr. Chen (MD, NPI #1982744942) includes accredited doctoral training (2018, 8 yrs in practice) and virtual + in-office availability across CA.
Compared against Roseville, CA Gastroenterology peers
1,095 annual services across 366 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 | 405 | 71.43th | $214 – $293 |
| 45380 | Diagnostic Colonoscopy w/ Mucosal Tissue Biopsy | 274 | 67.43th | $515 – $706 |
| 43239 | Upper GI Esophagogastroduodenoscopy (EGD) w/ Biopsy | 230 | 70.43th | $428 – $586 |
| 45385 | Colonoscopy w/ Snare Polypectomy Lesion Removal | 110 | 75.43th | $573 – $786 |
| 99204 | New Patient Digestive & Hepatology Consultation | 77 | 76.43th | $301 – $413 |
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Dr. William Chen, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Chen National Provider Identifier | NPI #1982744942 (MD) | CMS NPPES Registry (95661) |
| Dr. Chen Roseville CMS Volume Rank | 71.43th Pct (1,095 CMS svcs; Z -0.247σ) | CMS Medicare Part B (CA Gastroenterology) |
| Fair Cash-Pay New-Patient Benchmark | $239.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Roseville, CA) |
| Waiting-Room Wait Time & Cash Friendliness | $239.00 avg paid • 22 min lobby wait | 8 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.70/5 Listening • 4.67/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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