Dr. Jiwoon Chang, MD
300 Pasteur DR, Stanford, CA 94305 • +1-710-555-3048
Medical Education: Accredited U.S. Medical School (Class of 1995)
What This Doctor Actually Performs: CMS Medicare Utilization & Stanford Percentiles
NPI #1952780694 • CBSA Regional • Pulmonary Disease
Operating out of Stanford, CA (300 Pasteur DR), Pulmonary Disease clinician Dr. Jiwoon Chang, MD (accredited MD/DO training, 1995) maintains a upper-quartile active clinical volume (70th Stanford percentile) (33.27th CA percentile; Z-score -0.38σ across 1,218 documented services) with sub-specialty concentration in 46 Active CMS HCPCS Codes.
Medicare Part B line-item claims for Dr. Jiwoon Chang (94305) place 99214 at the top of the practice ledger (499 yearly units, 70th metro rank), rounded out by 94060 and 94729.
Direct cash-pay transparency modeling sets Dr. Chang's baseline new-consult rate near $239.00 in Stanford, CA (cash-pay accepted, in-person clinic visits only, 14-minute average reception wait).
Credentialed as an MD specialist with 31 years post-graduation experience since completing medical school at an LCME/COCA institution (1995), Dr. Chang coordinates 46 Active CMS HCPCS Codes workups from 300 Pasteur DR (+1-710-555-3048).
Compared against Stanford, CA Pulmonary Disease peers
1,218 annual services across 334 beneficiaries
Standard deviations from CA Pulmonary Disease 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 Pulmonary, Asthma & COPD Management | 499 | 70th | $171 – $234 |
| 94060 | Pre- & Post-Bronchodilator Spirometry Airflow Evaluation | 280 | 70th | $111 – $152 |
| 94729 | Alveolar Carbon Monoxide Diffusing Capacity (DLCO) | 207 | 74th | $101 – $138 |
| 95810 | Attended Sleep Apnea Polysomnography Interpretation | 134 | 72th | $312 – $427 |
| 99204 | Comprehensive New Patient Respiratory & Sleep Workup | 97 | 75th | $240 – $329 |
Are you Dr. Jiwoon Chang? Embed your Official DotMD Verification Badge (0-JS SVG)
Paste this lightweight SVG snippet onto your clinic bio page in Stanford, CA:
<a href="https://dotmd.com/doctors/jiwoon-chang-md-stanford-ca-1952780694" title="Dr. Jiwoon Chang, MD - Verified CMS Utilization on DotMD"><img src="https://dotmd.com/badges/npi/1952780694.svg" alt="Dr. Jiwoon Chang Pulmonary Disease Badge" width="280" height="72" /></a>
Dr. Jiwoon Chang, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Chang National Provider Identifier | NPI #1952780694 (MD) | CMS NPPES Registry (94305) |
| Dr. Chang Stanford CMS Volume Rank | 70.00th Pct (1,218 CMS svcs; Z -0.376σ) | CMS Medicare Part B (CA Pulmonary Disease) |
| Fair Cash-Pay New-Patient Benchmark | $239.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Stanford, CA) |
| Waiting-Room Wait Time & Cash Friendliness | $239.00 avg paid • 14 min lobby wait | 24 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.69/5 Listening • 4.60/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
Ask our AI Specialists anything about Dr. Jiwoon Chang
Other High-Volume Pulmonary Disease Specialists in Stanford, CA
Ranked strictly by CMS Medicare volumeDr. Chang Waiting-Room Q&A & Patient Experience Logs
Anonymous patient-submitted wait times, cash visit fees, and bedside manner discussions in Stanford, CA.
Share your self-pay visit cost and lobby wait time—no account, email, or IP stored.
Filter Dr. Jiwoon Chang community threads and patient logs by age, biological sex, dosage, and treatment duration.