Dr. Mark Tatara, MD
6840 Main St Ste 200, Downers Grove, IL 60516 • +1-664-555-2128
Medical Education: Accredited U.S. Medical School (Class of 2004)
What This Doctor Actually Performs: CMS Medicare Utilization & Downers Grove Percentiles
NPI #1043256324 • CBSA Regional • Internal Medicine
Statistical peer benchmarking across IL Internal Medicine providers positions Dr. Mark Tatara, MD in Downers Grove at +0.34σ (92.86th city percentile / 94.58th state percentile, 413 Medicare beneficiaries), with clinical focus spanning 34 Active CMS HCPCS Codes.
Among 6 tracked CMS fee-schedule codes for Dr. Tatara (averaging 17.5 services per beneficiary), 99214 (Moderate-to-High Complexity Internal Medicine Follow-Up) represents 13% of tracked volume (964 encounters), paired with 99213 (557x).
Uninsured and high-deductible cash patients visiting Dr. Mark Tatara in Downers Grove (60516) face an estimated $218.00 initial evaluation fee at 6840 Main St Ste 200 (in-person clinic visits only; 21-minute average reception wait; bedside manner 4.77/5 from 15 verified reports).
Credentialed as an MD specialist with 22 years post-graduation experience since completing medical school at an LCME/COCA institution (2004), Dr. Tatara coordinates 34 Active CMS HCPCS Codes workups from 6840 Main St Ste 200 (+1-664-555-2128).
Top 10% Internal Medicine volume leader in Downers Grove, IL
7,209 annual services across 413 beneficiaries
Standard deviations from IL Internal Medicine mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 99214 | Moderate-to-High Complexity Internal Medicine Follow-Up | 964 | 92.86th | $45 – $62 |
| 99213 | Established Preventive & Chronic Care Visit | 557 | 95.86th | $35 – $50 |
| 93000 | In-Office 12-Lead Resting Electrocardiogram | 279 | 95.86th | $25 – $40 |
| G0439 | Annual Preventive Wellness & Cardiometabolic Risk Assessment | 214 | 93.86th | $53 – $73 |
| 99204 | Comprehensive New Patient Internal Medicine Diagnostic Visit | 129 | 95.86th | $63 – $86 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (34 HCPCS billing breadth) | 5,066 | 92.86th | $45 – $65 |
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Dr. Mark Tatara, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Tatara National Provider Identifier | NPI #1043256324 (MD) | CMS NPPES Registry (60516) |
| Dr. Tatara Downers Grove CMS Volume Rank | 92.86th Pct (7,209 CMS svcs; Z +0.335σ) | CMS Medicare Part B (IL Internal Medicine) |
| Fair Cash-Pay New-Patient Benchmark | $218.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Downers Grove, IL) |
| Waiting-Room Wait Time & Cash Friendliness | $218.00 avg paid • 21 min lobby wait | 15 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.77/5 Listening • 4.43/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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