Dr. Mariam Korah, MD
4721 Dallas Ranch Rd, Antioch, CA 94531 • +1-220-555-5083
Medical Education: Accredited U.S. Medical School (Class of 2005)
What This Doctor Actually Performs: CMS Medicare Utilization & Antioch Percentiles
NPI #1083891543 • CBSA Regional • Radiation Oncology
Operating out of Antioch, CA (4721 Dallas Ranch Rd), Radiation Oncology clinician Dr. Mariam Korah, MD (accredited MD/DO training, 2005) maintains a focused low-volume boutique caseload (0th Antioch percentile) (69.39th CA percentile; Z-score +0.05σ across 3,178 documented services) with sub-specialty concentration in 43 Active CMS HCPCS Codes.
Medicare Part B line-item claims for Dr. Mariam Korah (94531) place 99214 at the top of the practice ledger (1430 yearly units, 12th metro rank), rounded out by 99213 and 93000.
At 4721 Dallas Ranch Rd (94531), Dr. Mariam Korah, MD accommodates direct self-pay scheduling (hybrid in-clinic and telehealth video consults) at ~$239.00 per new consult (4.84/5 bedside rating).
Clinical background for Dr. Korah (MD, NPI #1083891543) includes accredited doctoral training (2005, 21 yrs in practice) and virtual + in-office availability across CA.
Compared against Antioch, CA Radiation Oncology peers
3,178 annual services across 204 beneficiaries
Standard deviations from CA Radiation 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 | 1,430 | 12th | $556 – $762 |
| 99213 | Established Preventive & Chronic Care Visit | 826 | 12th | $426 – $583 |
| 93000 | In-Office 12-Lead Resting Electrocardiogram | 413 | 12th | $203 – $278 |
| G0439 | Annual Preventive Wellness & Cardiometabolic Risk Assessment | 318 | 12th | $653 – $895 |
| 99204 | Comprehensive New Patient Internal Medicine Diagnostic Visit | 191 | 12th | $774 – $1060 |
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Dr. Mariam Korah, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Korah National Provider Identifier | NPI #1083891543 (MD) | CMS NPPES Registry (94531) |
| Dr. Korah Antioch CMS Volume Rank | 0.00th Pct (3,178 CMS svcs; Z +0.053σ) | CMS Medicare Part B (CA Radiation Oncology) |
| Fair Cash-Pay New-Patient Benchmark | $239.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Antioch, CA) |
| Waiting-Room Wait Time & Cash Friendliness | $239.00 avg paid • 20 min lobby wait | 22 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.84/5 Listening • 4.43/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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