Abigail Walsh, NP
Abigail Walsh, NP is a Critical Care Pediatric Nurse Practitioner in Livingston, NJ, registered under NPI 1134421530. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 94 OLD SHORT HILLS RD, Livingston, NJ 07039. 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 |
|---|---|---|
| 26NJ00929300 | NJ | Critical Care Pediatric Nurse Practitioner primary |
| 26NJ00929300 | NJ | Pediatric Critical Care Medicine Physician |
This provider holds licence 26NJ00929300 issued in NJ. 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
- 7113144171
Medicare enrolment is recorded as approved under the provider type Practitioner - Nurse Practitioner. This means the provider is enrolled to bill Medicare, though it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Pediatrics, Critical Care covers
Definition to come... NUCC Health Care Provider Taxonomy, code 363LP0222X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 363LP0222X | Critical Care Pediatric Nurse Practitioner Pediatrics, Critical Care | 26NJ00929300 | NJ | primary |
| 2080P0203X | Pediatric Critical Care Medicine Physician Pediatric Critical Care Medicine | 26NJ00929300 | NJ |
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 | 1134421530 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Nov 17, 2010 |
| Last updated | Jun 13, 2022 |
| Status | Active |
| Sole proprietor | No |
| Credential | NP |
| Practice address |
94 OLD SHORT HILLS RD Livingston, NJ 07039 (973) 322-5000 |
| Mailing address |
171 FERNWOOD AVE Montclair, NJ 07043 |
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 | 3 | 4 | 4 | 2 | 1 | 5 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 1 | 6 | 4 | 8 | 2 | 2 | 5 | 6 |
Sum = 60 · next multiple of 10 = 60 · check digit = 0 · actual last digit = 0
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.