Dr. Diana Superfin, MD
500 Lennon Ln, Walnut Creek, CA 94598 • +1-216-555-3621
Medical Education: Accredited U.S. Medical School (Class of 2013)
What This Doctor Actually Performs: CMS Medicare Utilization & Walnut Creek Percentiles
NPI #1750365953 • CBSA Regional • Medical Oncology
Statistical peer benchmarking across CA Medical Oncology providers positions Dr. Diana Superfin, MD in Walnut Creek at +1.86σ (99th city percentile / 93.25th state percentile, 473 Medicare beneficiaries), with clinical focus spanning 128 Active CMS HCPCS Codes.
Medicare Part B line-item claims for Dr. Diana Superfin (94598) place 99214 at the top of the practice ledger (2125 yearly units, 99th metro rank), rounded out by 99213 and 93000.
Cash-pay intake data for NPI 1750365953 (500 Lennon Ln, Walnut Creek) indicates $239.00 typical out-of-pocket visit spend against a $239.00 locality benchmark, paired with 21-minute average reception wait and 4.63/5 biomarker openness.
Clinical background for Dr. Superfin (MD, NPI #1750365953) includes accredited doctoral training (2013, 13 yrs in practice) and dedicated on-site consultations at 500 Lennon Ln.
Top 10% Medical Oncology volume leader in Walnut Creek, CA
224,662 annual services across 473 beneficiaries
Standard deviations from CA Medical Oncology 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 | 2,125 | 99th | $50 – $68 |
| 99213 | Established Preventive & Chronic Care Visit | 1,228 | 99th | $38 – $53 |
| 93000 | In-Office 12-Lead Resting Electrocardiogram | 614 | 99.5th | $25 – $40 |
| G0439 | Annual Preventive Wellness & Cardiometabolic Risk Assessment | 472 | 99.5th | $58 – $80 |
| 99204 | Comprehensive New Patient Internal Medicine Diagnostic Visit | 283 | 99.5th | $69 – $94 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (128 HCPCS billing breadth) | 219,939 | 99th | $45 – $65 |
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Dr. Diana Superfin, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Superfin National Provider Identifier | NPI #1750365953 (MD) | CMS NPPES Registry (94598) |
| Dr. Superfin Walnut Creek CMS Volume Rank | 99.00th Pct (224,662 CMS svcs; Z +1.864σ) | CMS Medicare Part B (CA Medical Oncology) |
| Fair Cash-Pay New-Patient Benchmark | $239.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Walnut Creek, CA) |
| Waiting-Room Wait Time & Cash Friendliness | $239.00 avg paid • 21 min lobby wait | 21 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.72/5 Listening • 4.63/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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