John Nwankwo, M.D.
NPI 1831400498 · Diagnostic Radiology Physician · New York, NY
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Nwankwo, M.D. is a Diagnostic Radiology Physician provider in New York, NY (NPI 1831400498).
Provider details
- NPI number
- 1831400498
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- ME111465 (FL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
15 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
418 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| X-Ray of Chest, 1 View71045 | 180 | $9 |
| Ct Scan Head Or Brain Without Contrast70450 | 86 | $42 |
| X-Ray of Chest, 2 Views71046 | 44 | $11 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 36 | $90 |
| Ct Scan of Upper Spine Without Contrast72125 | 28 | $50 |
| X-Ray of Pelvis, 1-2 Views72170 | 19 | $9 |
| X-Ray of Abdomen, 1 View |
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-06-29
- Last updated
- 2022-07-21
Frequently asked questions
- What is John Nwankwo's NPI number?
- John Nwankwo's National Provider Identifier (NPI) is 1831400498, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Nwankwo's specialty?
- John Nwankwo is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is John Nwankwo located?
- John Nwankwo's practice location on file with NPPES is 160 Madison Ave Apt 18e, New York, NY 10016-5496.
- What is John Nwankwo's phone number?
- The practice phone number listed in the NPPES registry for John Nwankwo is (952) 595-1100.
- Does John Nwankwo accept Medicare?
- John Nwankwo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Nwankwo's NPI active?
- Yes — John Nwankwo's NPI (1831400498) 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.