Madu Nwajiaku, NP
Madu Nwajiaku, NP is an Addiction Psychiatry Physician in Richmond, VA, registered under NPI 1598532483. This provider registers 3 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 110 N ROBINSON ST STE 305, Richmond, VA 23220. 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 |
|---|---|---|
| 0024188927 | VA | Addiction Psychiatry Physician primary |
| 0024188927 | VA | Addiction Medicine (Psychiatry &… |
| 0024188927 | VA | Psychiatry Physician |
This provider holds licence 0024188927 issued in VA. 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
- 9638516792
- Enrollment ID
- I20240325002346
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 Addiction Psychiatry covers
Addiction Psychiatry is a subspecialty of psychiatry that focuses on evaluation and treatment of individuals with alcohol, drug, or other substance-related disorders, and of individuals with dual diagnosis of substance-related and other psychiatric disorders. NUCC Health Care Provider Taxonomy, code 2084P0802X
All registered taxonomy codes
This provider registers 3 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 2084P0802X | Addiction Psychiatry Physician Addiction Psychiatry | 0024188927 | VA | primary |
| 2084A0401X | Addiction Medicine (Psychiatry & Neurology) Physician Addiction Medicine | 0024188927 | VA | |
| 2084P0800X | Psychiatry Physician Psychiatry | 0024188927 | VA |
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 | 1598532483 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Dec 11, 2023 |
| Last updated | Apr 23, 2026 |
| Status | Active |
| Sole proprietor | No |
| Credential | NP |
| Practice address |
110 N ROBINSON ST STE 305 Richmond, VA 23220 (804) 773-1571 |
| Mailing address |
1700 FRONT ST Richmond, VA 23222 |
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 | 5 | 9 | 8 | 5 | 3 | 2 | 4 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 5 | 9 | 8 | 1 | 3 | 4 | 4 | 7 |
Sum = 67 · next multiple of 10 = 70 · 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.