Dr. Stephen Chang, MD
1451 Irvine Blvd, Tustin, CA 92780 • +1-881-555-5514
Medical Education: Accredited U.S. Medical School (Class of 2016)
What This Doctor Actually Performs: CMS Medicare Utilization & Tustin Percentiles
NPI #1043715410 • CBSA Regional • Family Practice
CMS Medicare Part B utilization records credit Dr. Stephen Chang (MD, NPI 1043715410) at 1451 Irvine Blvd in Tustin with 1,032 annual clinical services (318 beneficiaries), corresponding to a -0.08σ regional deviation and focused low-volume boutique caseload (28.57th Tustin percentile) with sub-specialty concentration in 37 Active CMS HCPCS Codes.
Dr. Chang's longitudinal care intensity (3.2 billed units per patient across 318 individuals) centers on 99214 (407 annual units) and 99213 ($108–$148 cash range).
Uninsured and high-deductible cash patients visiting Dr. Stephen Chang in Tustin (92780) face an estimated $239.00 initial evaluation fee at 1451 Irvine Blvd (in-person clinic visits only; 16-minute average reception wait; bedside manner 4.89/5 from 12 verified reports).
Credentialed as an MD specialist with 10 years post-graduation experience since completing medical school at an LCME/COCA institution (2016), Dr. Chang coordinates 37 Active CMS HCPCS Codes workups from 1451 Irvine Blvd (+1-881-555-5514).
Compared against Tustin, CA Family Practice peers
1,032 annual services across 318 beneficiaries
Standard deviations from CA Family Practice mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 99214 | Comprehensive Primary Care & Chronic Protocol Management | 407 | 28.57th | $141 – $193 |
| 99213 | Focused Acute & Preventive Primary Care Evaluation | 300 | 23.57th | $108 – $148 |
| G0439 | Annual Wellness Biomarker & Preventive Screening Visit | 116 | 32.57th | $162 – $222 |
| 36415 | Routine Venipuncture Blood Biomarker Collection | 87 | 23.57th | $31 – $46 |
| 99204 | New Patient Primary Care Intake & Diagnostic Plan | 58 | 24.57th | $194 – $266 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (37 HCPCS billing breadth) | 64 | 28.57th | $127 – $184 |
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Dr. Stephen Chang, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Chang National Provider Identifier | NPI #1043715410 (MD) | CMS NPPES Registry (92780) |
| Dr. Chang Tustin CMS Volume Rank | 28.57th Pct (1,032 CMS svcs; Z -0.079σ) | CMS Medicare Part B (CA Family Practice) |
| Fair Cash-Pay New-Patient Benchmark | $239.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Tustin, CA) |
| Waiting-Room Wait Time & Cash Friendliness | $239.00 avg paid • 16 min lobby wait | 12 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.89/5 Listening • 4.45/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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