Quick answers
- Does Mary N. Onwuka accept Medicare assignment?
- Yes. Medicare's clinician data says Mary N. Onwuka accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Mary N. Onwuka's NPI number?
- 1649290636. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Mary N. Onwuka is enrolled with Medicare (CMS data updated October 2, 2026).
- 1925 Pacific AveAtlantic City, NJ 08401 (732) 693‑1214
- 200 New RdLinwood, NJ 08221 (609) 748‑4199
Group practices
Medicare enrollment lists Mary N. Onwuka as a member of this group (CMS data updated October 2, 2026).
- Mastermind Healthcare LLC4 clinicians in the group
Specialties
- Internal Medicineprimary
- Geriatric Medicinealso
Other internal medicine doctors in Atlantic City
Clinicians with the same Medicare primary specialty in Atlantic City, NJ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1989 (37 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1649290636 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians