Dr. Eileen Chang, DO
12745 S Saginaw St # 806-196, Grand Blanc, MI 48439 • +1-734-555-7737
Medical Education: Accredited U.S. Medical School (Class of 2003)
What This Doctor Actually Performs: CMS Medicare Utilization & Grand Blanc Percentiles
NPI #1790218360 • CBSA Regional • Hospitalist
Within the Grand Blanc, MI (CBSA local) Hospitalist cohort, Dr. Eileen Chang, DO with sub-specialty concentration in 12 Active CMS HCPCS Codes ranks at the 40th municipal percentile and 70.23th MI percentile (+0.21σ Z-score) based on 1,049 billed procedures for 239 patients.
Procedural volume for Dr. Chang is led by HCPCS 99214 (Moderate-to-High Complexity Internal Medicine Follow-Up — 472 annual services, $178–$244 GPCI cash estimate), followed by CPT 99213 (Established Preventive & Chronic Care Visit, 273/yr) and CPT 93000 (In-Office 12-Lead Resting Electrocardiogram, 136/yr).
Direct cash-pay transparency modeling sets Dr. Chang's baseline new-consult rate near $209.00 in Grand Blanc, MI (cash-pay accepted, hybrid in-clinic and telehealth video consults, 22-minute average reception wait).
Clinical background for Dr. Chang (DO, NPI #1790218360) includes accredited doctoral training (2003, 23 yrs in practice) and virtual + in-office availability across MI.
Compared against Grand Blanc, MI Hospitalist peers
1,049 annual services across 239 beneficiaries
Standard deviations from MI Hospitalist 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 | 472 | 40th | $178 – $244 |
| 99213 | Established Preventive & Chronic Care Visit | 273 | 45th | $136 – $187 |
| 93000 | In-Office 12-Lead Resting Electrocardiogram | 136 | 39th | $65 – $89 |
| G0439 | Annual Preventive Wellness & Cardiometabolic Risk Assessment | 105 | 45th | $209 – $287 |
| 99204 | Comprehensive New Patient Internal Medicine Diagnostic Visit | 63 | 41th | $248 – $340 |
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Dr. Eileen Chang, DO Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Chang National Provider Identifier | NPI #1790218360 (DO) | CMS NPPES Registry (48439) |
| Dr. Chang Grand Blanc CMS Volume Rank | 40.00th Pct (1,049 CMS svcs; Z +0.210σ) | CMS Medicare Part B (MI Hospitalist) |
| Fair Cash-Pay New-Patient Benchmark | $209.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Grand Blanc, MI) |
| Waiting-Room Wait Time & Cash Friendliness | $209.00 avg paid • 22 min lobby wait | 20 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.81/5 Listening • 4.72/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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