Dr. William Chang, MD
500 N Garfield Ave Ste 204, Monterey Park, CA 91754 • +1-817-555-1894
Medical Education: Accredited U.S. Medical School (Class of 2008)
What This Doctor Actually Performs: CMS Medicare Utilization & Monterey Park Percentiles
NPI #1003236688 • CBSA Regional • Critical Care (Intensivists)
Anchored in Monterey Park, CA 91754, Dr. William Chang, MD (NPI 1003236688) logged 4,058 annual procedures (mid-cohort balanced caseload (50th Monterey Park percentile), 96.69th CA percentile, +2.31σ) with sub-specialty concentration in 41 Active CMS HCPCS Codes.
Among 5 tracked CMS fee-schedule codes for Dr. Chang (averaging 5.1 services per beneficiary), 99214 (Moderate-to-High Complexity Internal Medicine Follow-Up) represents 45% of tracked volume (1826 encounters), paired with 99213 (1055x).
Cash-pay intake data for NPI 1003236688 (500 N Garfield Ave Ste 204, Monterey Park) indicates $239.00 typical out-of-pocket visit spend against a $239.00 locality benchmark, paired with 21-minute average reception wait and 4.60/5 biomarker openness.
Spanning 18 years of clinical practice following 2008 graduation from medical training, Dr. William Chang integrates 41 Active CMS HCPCS Codes diagnostics for Monterey Park metro patients.
Compared against Monterey Park, CA Critical Care (Intensivists) peers
4,058 annual services across 801 beneficiaries
Standard deviations from CA Critical Care (Intensivists) 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 | 1,826 | 50th | $233 – $320 |
| 99213 | Established Preventive & Chronic Care Visit | 1,055 | 54th | $178 – $245 |
| 93000 | In-Office 12-Lead Resting Electrocardiogram | 528 | 45th | $85 – $117 |
| G0439 | Annual Preventive Wellness & Cardiometabolic Risk Assessment | 406 | 54th | $274 – $375 |
| 99204 | Comprehensive New Patient Internal Medicine Diagnostic Visit | 243 | 46th | $325 – $445 |
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Dr. William Chang, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Chang National Provider Identifier | NPI #1003236688 (MD) | CMS NPPES Registry (91754) |
| Dr. Chang Monterey Park CMS Volume Rank | 50.00th Pct (4,058 CMS svcs; Z +2.312σ) | CMS Medicare Part B (CA Critical Care (Intensivists)) |
| Fair Cash-Pay New-Patient Benchmark | $239.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Monterey Park, CA) |
| Waiting-Room Wait Time & Cash Friendliness | $239.00 avg paid • 21 min lobby wait | 7 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.70/5 Listening • 4.60/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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