Okwudili Nnaji, M D
NPI 1912144403 · Student in an Organized Health Care Education/Training Program · Brooklyn, NY
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Okwudili Nnaji, M D is a Student in an Organized Health Care Education/Training Program provider in Brooklyn, NY (NPI 1912144403).
Provider details
- NPI number
- 1912144403
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Credential
- M D
- Sex
- Male
- Sole proprietor
- No
- License
- 52638-020 (WI)
Specialties & taxonomies
Student, Health Care
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
17 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
257 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Hemodialysis Procedure With Physician Evaluation90935 | 119 | $78 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 68 | $88 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 28 | $146 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 23 | $104 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 19 | $132 |
Typical Medicare-allowed amounts for these services range $78–$146 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 28 | — |
| Furosemide | 23 | 11 |
| Losartan Potassium | 22 | — |
| Sodium Zirconium Cyclosilicatebrand: Lokelma | 19 | — |
| Ergocalciferol (vitamin D2)brand: Vitamin D2 | 17 | — |
| Calcitriol | 17 | — |
| Dapagliflozin Propanediolbrand: Farxiga |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$15 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-01-21
- Last updated
- 2022-07-21
Frequently asked questions
- What is Okwudili Nnaji's NPI number?
- Okwudili Nnaji's National Provider Identifier (NPI) is 1912144403, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Okwudili Nnaji's specialty?
- Okwudili Nnaji is listed in the NPPES registry with a primary specialty of Student in an Organized Health Care Education/Training Program (Student, Health Care).
- Where is Okwudili Nnaji located?
- Okwudili Nnaji's practice location on file with NPPES is 450 Clarkson Ave, Brooklyn, NY 11203-2012.
- What is Okwudili Nnaji's phone number?
- The practice phone number listed in the NPPES registry for Okwudili Nnaji is (718) 270-2848.
- Does Okwudili Nnaji accept Medicare?
- Okwudili Nnaji is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Okwudili Nnaji's NPI active?
- Yes — Okwudili Nnaji's NPI (1912144403) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.