Dr. Diana Chen, MD
4408 S Harvard Ave, Tulsa, OK 74135 • +1-751-555-3758
Medical Education: Accredited U.S. Medical School (Class of 2011)
What This Doctor Actually Performs: CMS Medicare Utilization & Tulsa Percentiles
NPI #1518919091 • CBSA Regional • Internal Medicine
Operating out of Tulsa, OK (4408 S Harvard Ave), Internal Medicine clinician Dr. Diana Chen, MD (accredited MD/DO training, 2011) maintains a upper-quartile active clinical volume (77.68th Tulsa percentile) (85.37th OK percentile; Z-score +0.08σ across 4,366 documented services) with sub-specialty concentration in 65 Active CMS HCPCS Codes.
Medicare Part B line-item claims for Dr. Diana Chen (74135) place 99214 at the top of the practice ledger (677 yearly units, 77.68th metro rank), rounded out by 99213 and 93000.
Direct cash-pay transparency modeling sets Dr. Chen's baseline new-consult rate near $209.00 in Tulsa, OK (cash-pay accepted, hybrid in-clinic and telehealth video consults, 17-minute average reception wait).
Clinical background for Dr. Chen (MD, NPI #1518919091) includes accredited doctoral training (2011, 15 yrs in practice) and virtual + in-office availability across OK.
Compared against Tulsa, OK Internal Medicine peers
4,366 annual services across 139 beneficiaries
Standard deviations from OK 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 | 677 | 77.68th | $53 – $73 |
| 99213 | Established Preventive & Chronic Care Visit | 391 | 75.68th | $41 – $56 |
| 93000 | In-Office 12-Lead Resting Electrocardiogram | 196 | 81.68th | $25 – $40 |
| G0439 | Annual Preventive Wellness & Cardiometabolic Risk Assessment | 150 | 81.68th | $63 – $86 |
| 99204 | Comprehensive New Patient Internal Medicine Diagnostic Visit | 90 | 81.68th | $74 – $102 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (65 HCPCS billing breadth) | 2,862 | 77.68th | $48 – $70 |
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Dr. Diana Chen, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Chen National Provider Identifier | NPI #1518919091 (MD) | CMS NPPES Registry (74135) |
| Dr. Chen Tulsa CMS Volume Rank | 77.68th Pct (4,366 CMS svcs; Z +0.077σ) | CMS Medicare Part B (OK Internal Medicine) |
| Fair Cash-Pay New-Patient Benchmark | $209.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Tulsa, OK) |
| Waiting-Room Wait Time & Cash Friendliness | $209.00 avg paid • 17 min lobby wait | 25 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.57/5 Listening • 4.77/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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