Dr. Douglas Chang, MD
200 W Arbor DR, San Diego, CA 92103 • +1-335-555-4945
Medical Education: Accredited U.S. Medical School (Class of 1992)
What This Doctor Actually Performs: CMS Medicare Utilization & San Diego Percentiles
NPI #1962450031 • CBSA Regional • Orthopedic Surgery
Dr. Douglas Chang, MD (NPI #1962450031) practices Orthopedic Surgery in San Diego, CA (92103) with sub-specialty concentration in 26 Active CMS HCPCS Codes, recording 1,300 annual CMS services across 562 distinct beneficiaries—placing this practice as a mid-cohort balanced caseload (52.83th San Diego percentile) (-0.35σ vs CA state mean, 27.07th statewide percentile).
Procedural volume for Dr. Chang is led by HCPCS 99213 (Focused Orthopedic Joint & Spine Mobility Evaluation — 379 annual services, $124–$170 GPCI cash estimate), followed by CPT 20610 (Major Joint (Knee/Shoulder/Hip) Aspiration or Injection, 285/yr) and CPT 73562 (Radiologic Weight-Bearing 3-View Knee Examination, 200/yr).
Self-pay new patient consultations with Dr. Chang (CPT 99204 GPCI-adjusted benchmark) estimate around $239.00 (community reported average: $239.00) with in-person clinic visits only, 19-minute average reception wait, and a 4.59/5 modern protocol openness score across 21 patient logs.
Patients evaluating Dr. Douglas Chang in ZIP 92103 note 34 years of post-doctoral tenure (null, 1992) alongside 2.3 annual CMS procedures per patient.
Compared against San Diego, CA Orthopedic Surgery peers
1,300 annual services across 562 beneficiaries
Standard deviations from CA Orthopedic Surgery mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 99213 | Focused Orthopedic Joint & Spine Mobility Evaluation | 379 | 52.83th | $124 – $170 |
| 20610 | Major Joint (Knee/Shoulder/Hip) Aspiration or Injection | 285 | 47.83th | $132 – $181 |
| 73562 | Radiologic Weight-Bearing 3-View Knee Examination | 200 | 54.83th | $74 – $102 |
| 99203 | New Patient Musculoskeletal Injury & Surgical Triage | 116 | 54.83th | $178 – $244 |
| 27447 | Total Knee Arthroplasty Joint Reconstruction | 74 | 52.83th | $1146 – $1571 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (26 HCPCS billing breadth) | 246 | 52.83th | $140 – $203 |
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Dr. Douglas Chang, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Chang National Provider Identifier | NPI #1962450031 (MD) | CMS NPPES Registry (92103) |
| Dr. Chang San Diego CMS Volume Rank | 52.83th Pct (1,300 CMS svcs; Z -0.347σ) | CMS Medicare Part B (CA Orthopedic Surgery) |
| Fair Cash-Pay New-Patient Benchmark | $239.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (San Diego, CA) |
| Waiting-Room Wait Time & Cash Friendliness | $239.00 avg paid • 19 min lobby wait | 21 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.63/5 Listening • 4.59/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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