Dr. Nnenna Oluigbo, MD
110 Irving St Nw Ste 385, Washington, DC 20010 • +1-975-555-1872
Medical Education: Accredited U.S. Medical School (Class of 2013)
What This Doctor Actually Performs: CMS Medicare Utilization & Washington Percentiles
NPI #1548417884 • CBSA Regional • Internal Medicine
Operating out of Washington, DC (110 Irving St Nw Ste 385), Internal Medicine clinician Dr. Nnenna Oluigbo, MD (accredited MD/DO training, 2013) maintains a mid-cohort balanced caseload (49.11th Washington percentile) (49.41th DC percentile; Z-score -0.12σ across 986 documented services) with sub-specialty concentration in 30 Active CMS HCPCS Codes.
Dr. Oluigbo's longitudinal care intensity (2.6 billed units per patient across 383 individuals) centers on 99214 (413 annual units) and 99213 ($145–$199 cash range).
Uninsured and high-deductible cash patients visiting Dr. Nnenna Oluigbo in Washington (20010) face an estimated $209.00 initial evaluation fee at 110 Irving St Nw Ste 385 (in-person clinic visits only; 21-minute average reception wait; bedside manner 4.77/5 from 15 verified reports).
Spanning 13 years of clinical practice following 2013 graduation from medical training, Dr. Nnenna Oluigbo integrates 30 Active CMS HCPCS Codes diagnostics for Washington metro patients.
Compared against Washington, DC Internal Medicine peers
986 annual services across 383 beneficiaries
Standard deviations from DC 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 | 413 | 49.11th | $190 – $260 |
| 99213 | Established Preventive & Chronic Care Visit | 239 | 53.11th | $145 – $199 |
| 93000 | In-Office 12-Lead Resting Electrocardiogram | 119 | 53.11th | $69 – $95 |
| G0439 | Annual Preventive Wellness & Cardiometabolic Risk Assessment | 92 | 50.11th | $223 – $305 |
| 99204 | Comprehensive New Patient Internal Medicine Diagnostic Visit | 55 | 48.11th | $264 – $362 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (30 HCPCS billing breadth) | 68 | 49.11th | $171 – $248 |
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Dr. Nnenna Oluigbo, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Oluigbo National Provider Identifier | NPI #1548417884 (MD) | CMS NPPES Registry (20010) |
| Dr. Oluigbo Washington CMS Volume Rank | 49.11th Pct (986 CMS svcs; Z -0.115σ) | CMS Medicare Part B (DC Internal Medicine) |
| Fair Cash-Pay New-Patient Benchmark | $209.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Washington, DC) |
| Waiting-Room Wait Time & Cash Friendliness | $209.00 avg paid • 21 min lobby wait | 15 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.77/5 Listening • 4.69/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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