Maria Gaines-onwukwe, NURSE PRACTITIONER
Maria Gaines-onwukwe, NURSE PRACTITIONER is an Acute Care Nurse Practitioner in Aberdeen, MD, registered under NPI 1154009173. This provider registers 10 separate taxonomy codes, which usually means they practise across more than one recognised specialty. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
The practice address on file is 1013 BEARDS HILL RD STE 101M, Aberdeen, MD 21001. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| R183361 | MD | Acute Care Nurse Practitioner primary |
| R183361 | MD | Registered Nurse |
| R183361 | MD | Administrator Registered Nurse |
| R183361 | MD | Case Management Registered Nurse |
| R183361 | MD | Internal Medicine Physician |
| R183361 | MD | Point of Service |
| R183361 | MD | Adult Health Nurse Practitioner |
| R183361 | MD | Gerontology Nurse Practitioner |
This provider holds licence R183361 issued in MD. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Nurse Practitioner
- PAC ID
- 2163878802
- Enrollment ID
- I20231101000028
Medicare enrolment is recorded as approved under the provider type Practitioner - Nurse Practitioner. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Acute Care covers
Definition to come... NUCC Health Care Provider Taxonomy, code 363LA2100X
All registered taxonomy codes
This provider registers 11 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 363LA2100X | Acute Care Nurse Practitioner Acute Care | R183361 | MD | primary |
| 163W00000X | Registered Nurse | R183361 | MD | |
| 163WA2000X | Administrator Registered Nurse Administrator | R183361 | MD | |
| 163WC0400X | Case Management Registered Nurse Case Management | R183361 | MD | |
| 207R00000X | Internal Medicine Physician | R183361 | MD | |
| 251F00000X | Home Infusion Agency | — | — | |
| 261Q00000X | Clinic/Center | — | — | |
| 305S00000X | Point of Service | — | — | |
| 305S00000X | Point of Service | R183361 | MD | |
| 363LA2200X | Adult Health Nurse Practitioner Adult Health | R183361 | MD | |
| 363LG0600X | Gerontology Nurse Practitioner Gerontology | R183361 | MD |
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1154009173 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jul 10, 2023 |
| Last updated | Aug 6, 2025 |
| Status | Active |
| Sole proprietor | Yes |
| Credential | NURSE PRACTITIONER |
| Practice address |
1013 BEARDS HILL RD STE 101M Aberdeen, MD 21001 (443) 655-3262 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 1 | 5 | 4 | 0 | 0 | 9 | 1 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 1 | 1 | 4 | 0 | 0 | 9 | 1 | 5 |
Sum = 47 · next multiple of 10 = 50 · check digit = 3 · actual last digit = 3
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.