Dr. Mark Chang, MD
1100 Joliet St, Ste 104, Dyer, IN 46311 • +1-618-555-6127
Medical Education: Accredited U.S. Medical School (Class of 2015)
What This Doctor Actually Performs: CMS Medicare Utilization & Dyer Percentiles
NPI #1871607507 • CBSA Regional • Orthopedic Surgery
CMS Medicare Part B utilization records credit Dr. Mark Chang (MD, NPI 1871607507) at 1100 Joliet St, Ste 104 in Dyer with 2,212 annual clinical services (441 beneficiaries), corresponding to a -0.45σ regional deviation and top-decile high-throughput specialist (99th percentile in Dyer) with sub-specialty concentration in 55 Active CMS HCPCS Codes.
Medicare Part B line-item claims for Dr. Mark Chang (46311) place 99213 at the top of the practice ledger (796 yearly units, 99th metro rank), rounded out by 20610 and 73562.
Uninsured and high-deductible cash patients visiting Dr. Mark Chang in Dyer (46311) face an estimated $209.00 initial evaluation fee at 1100 Joliet St, Ste 104 (hybrid in-clinic and telehealth video consults; 18-minute average reception wait; bedside manner 4.68/5 from 14 verified reports).
Clinical background for Dr. Chang (MD, NPI #1871607507) includes accredited doctoral training (2015, 11 yrs in practice) and virtual + in-office availability across IN.
Top 10% Orthopedic Surgery volume leader in Dyer, IN
2,212 annual services across 441 beneficiaries
Standard deviations from IN 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 | 796 | 99th | $152 – $209 |
| 20610 | Major Joint (Knee/Shoulder/Hip) Aspiration or Injection | 597 | 99.5th | $162 – $222 |
| 73562 | Radiologic Weight-Bearing 3-View Knee Examination | 420 | 99th | $91 – $125 |
| 99203 | New Patient Musculoskeletal Injury & Surgical Triage | 243 | 94th | $218 – $299 |
| 27447 | Total Knee Arthroplasty Joint Reconstruction | 155 | 99.5th | $1406 – $1927 |
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Dr. Mark Chang, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Chang National Provider Identifier | NPI #1871607507 (MD) | CMS NPPES Registry (46311) |
| Dr. Chang Dyer CMS Volume Rank | 99.00th Pct (2,212 CMS svcs; Z -0.452σ) | CMS Medicare Part B (IN Orthopedic Surgery) |
| Fair Cash-Pay New-Patient Benchmark | $209.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Dyer, IN) |
| Waiting-Room Wait Time & Cash Friendliness | $209.00 avg paid • 18 min lobby wait | 14 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.68/5 Listening • 4.73/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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