Dr. Anna Chang, MD
2700 Grant St, Suite 200, Concord, CA 94520 • +1-779-555-2543
Medical Education: Accredited U.S. Medical School (Class of 2017)
What This Doctor Actually Performs: CMS Medicare Utilization & Concord Percentiles
NPI #1568402931 • CBSA Regional • Endocrinology
Dr. Anna Chang, MD (NPI #1568402931) practices Endocrinology in Concord, CA (94520) with sub-specialty concentration in 23 Active CMS HCPCS Codes, recording 8,701 annual CMS services across 671 distinct beneficiaries—placing this practice as a mid-cohort balanced caseload (50th Concord percentile) (+0.07σ vs CA state mean, 70.74th statewide percentile).
Granular CPT/HCPCS billing distribution at 2700 Grant St, Suite 200 shows Dr. Anna Chang's primary concentration in Complex Endocrine, Thyroid & Metabolic Biomarker Management (code 99214: 916x/yr, 50th local percentile) alongside Ambulatory Continuous Glucose Monitoring (CGM) Data Analysis (95251: 458x/yr, $34–$49).
Direct cash-pay transparency modeling sets Dr. Chang's baseline new-consult rate near $239.00 in Concord, CA (cash-pay accepted, hybrid in-clinic and telehealth video consults, 10-minute average reception wait).
Credentialed as an MD specialist with 9 years post-graduation experience since completing medical school at an LCME/COCA institution (2017), Dr. Chang coordinates 23 Active CMS HCPCS Codes workups from 2700 Grant St, Suite 200 (+1-779-555-2543).
Compared against Concord, CA Endocrinology peers
8,701 annual services across 671 beneficiaries
Standard deviations from CA Endocrinology mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 99214 | Complex Endocrine, Thyroid & Metabolic Biomarker Management | 916 | 50th | $55 – $75 |
| 95251 | Ambulatory Continuous Glucose Monitoring (CGM) Data Analysis | 458 | 51th | $34 – $49 |
| 76536 | High-Resolution Thyroid & Parathyroid Neck Ultrasound | 333 | 46th | $66 – $90 |
| 99204 | Comprehensive New Patient Endocrine & Hormone Workup | 250 | 45th | $75 – $103 |
| 99215 | High-Complexity Multi-Hormone & Insulin Pump Titration | 125 | 49th | $84 – $115 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (23 HCPCS billing breadth) | 6,620 | 50th | $47 – $68 |
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Dr. Anna Chang, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Chang National Provider Identifier | NPI #1568402931 (MD) | CMS NPPES Registry (94520) |
| Dr. Chang Concord CMS Volume Rank | 50.00th Pct (8,701 CMS svcs; Z +0.067σ) | CMS Medicare Part B (CA Endocrinology) |
| Fair Cash-Pay New-Patient Benchmark | $239.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Concord, CA) |
| Waiting-Room Wait Time & Cash Friendliness | $239.00 avg paid • 10 min lobby wait | 22 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.60/5 Listening • 4.58/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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