Dr. Mariam Khan, MD
1200 S York St Ste 2000, Elmhurst, IL 60126 • +1-677-555-7511
Medical Education: Accredited U.S. Medical School (Class of 2016)
What This Doctor Actually Performs: CMS Medicare Utilization & Elmhurst Percentiles
NPI #1225317464 • CBSA Regional • Rheumatology
Within the Elmhurst, IL (CBSA local) Rheumatology cohort, Dr. Mariam Khan, MD with sub-specialty concentration in 24 Active CMS HCPCS Codes ranks at the 33.33th municipal percentile and 68.79th IL percentile (+0.21σ Z-score) based on 72,362 billed procedures for 363 patients.
Granular CPT/HCPCS billing distribution at 1200 S York St Ste 2000 shows Dr. Mariam Khan's primary concentration in Autoimmune Arthritis & Biologic/DMARD Safety Evaluation (code 99214: 546x/yr, 33.33th local percentile) alongside Large Joint Synovial Arthrocentesis or Corticosteroid Injection (20610: 249x/yr, $37–$52).
For out-of-network patients contacting +1-677-555-7511, Dr. Khan's practice posts a $218.00 GPCI self-pay consult estimate ($218.00 patient-logged median, 4.64/5 composite reality score over 3 submissions).
NPI registry verification (#1225317464) confirms Dr. Mariam Khan's MD standing serving CBSA 60126 with a 4.64/5 patient scorecard.
Compared against Elmhurst, IL Rheumatology peers
72,362 annual services across 363 beneficiaries
Standard deviations from IL Rheumatology mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 99214 | Autoimmune Arthritis & Biologic/DMARD Safety Evaluation | 546 | 33.33th | $47 – $65 |
| 20610 | Large Joint Synovial Arthrocentesis or Corticosteroid Injection | 249 | 30.33th | $37 – $52 |
| 96413 | Intravenous Biologic Infusion Therapy (First Hour) | 178 | 29.33th | $65 – $89 |
| 76881 | Complete Joint Synovitis High-Resolution Ultrasound | 119 | 37.33th | $49 – $67 |
| 99204 | New Patient Autoimmune & Rheumatology Diagnostic Workup | 95 | 28.33th | $65 – $89 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (24 HCPCS billing breadth) | 71,174 | 33.33th | $45 – $65 |
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Dr. Mariam Khan, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Khan National Provider Identifier | NPI #1225317464 (MD) | CMS NPPES Registry (60126) |
| Dr. Khan Elmhurst CMS Volume Rank | 33.33th Pct (72,362 CMS svcs; Z +0.211σ) | CMS Medicare Part B (IL Rheumatology) |
| Fair Cash-Pay New-Patient Benchmark | $218.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Elmhurst, IL) |
| Waiting-Room Wait Time & Cash Friendliness | $218.00 avg paid • 15 min lobby wait | 3 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.82/5 Listening • 4.62/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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