Aditya Singh, RN
Aditya Singh, RN is an Addiction (Substance Use Disorder) Registered Nurse in Anaheim, CA, registered under NPI 1780477562. This provider registers 14 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 PO BOX 27053, Anaheim, CA 92809. 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 |
|---|---|---|
| 842728 | CA | Addiction (Substance Use Disorder)… primary |
| 842728 | CA | Nurse Massage Therapist (NMT) |
| 842728 | CA | Child & Adolescent Psychiatric/Mental… |
| 842728 | CA | Psychiatric/Mental Health Registered Nurse |
| 842728 | CA | Adult Psychiatric/Mental Health… |
| 842728 | CA | Rehabilitation Registered Nurse |
| 842728 | CA | Hemodialysis Registered Nurse |
| 842728 | CA | Hospice Registered Nurse |
| 842728 | CA | Infusion Therapy Registered Nurse |
| 842728 | CA | Peritoneal Dialysis Registered Nurse |
| 842728 | CA | Home Health Registered Nurse |
| 842728 | CA | School Registered Nurse |
| 842728 | CA | Occupational Health Registered Nurse |
| 842728 | CA | Diabetes Educator Registered Nurse |
This provider holds licence 842728 issued in CA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Addiction (Substance Use Disorder) covers
Definition to come... NUCC Health Care Provider Taxonomy, code 163WA0400X
All registered taxonomy codes
This provider registers 14 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 163WA0400X | Addiction (Substance Use Disorder) Registered Nurse Addiction (Substance Use Disorder) | 842728 | CA | primary |
| 163WM1400X | Nurse Massage Therapist (NMT) Nurse Massage Therapist (NMT) | 842728 | CA | |
| 163WP0807X | Child & Adolescent Psychiatric/Mental Health Registered Nurse Psychiatric/Mental Health, Child & Adolescent | 842728 | CA | |
| 163WP0808X | Psychiatric/Mental Health Registered Nurse Psychiatric/Mental Health | 842728 | CA | |
| 163WP0809X | Adult Psychiatric/Mental Health Registered Nurse Psychiatric/Mental Health, Adult | 842728 | CA | |
| 163WR0400X | Rehabilitation Registered Nurse Rehabilitation | 842728 | CA | |
| 163WH0500X | Hemodialysis Registered Nurse Hemodialysis | 842728 | CA | |
| 163WH1000X | Hospice Registered Nurse Hospice | 842728 | CA | |
| 163WI0500X | Infusion Therapy Registered Nurse Infusion Therapy | 842728 | CA | |
| 163WD1100X | Peritoneal Dialysis Registered Nurse Dialysis, Peritoneal | 842728 | CA | |
| 163WH0200X | Home Health Registered Nurse Home Health | 842728 | CA | |
| 163WS0200X | School Registered Nurse School | 842728 | CA | |
| 163WX0106X | Occupational Health Registered Nurse Occupational Health | 842728 | CA | |
| 163WD0400X | Diabetes Educator Registered Nurse Diabetes Educator | 842728 | CA |
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 | 1780477562 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 26, 2025 |
| Last updated | May 26, 2025 |
| Status | Active |
| Sole proprietor | Yes |
| Credential | RN |
| Practice address |
PO BOX 27053 Anaheim, CA 92809 (714) 299-1261 |
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 | 7 | 8 | 0 | 4 | 7 | 7 | 5 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 7 | 7 | 0 | 8 | 7 | 5 | 5 | 3 |
Sum = 68 · next multiple of 10 = 70 · check digit = 2 · actual last digit = 2
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.