Christina Tierney, LCADC
Christina Tierney, LCADC is an Addiction (Substance Use Disorder) Counselor in Ewing, NJ, registered under NPI 1053264234.
Getting there
The practice address on file is 1440 PENNINGTON RD STE 1, Ewing, NJ 08618. 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 |
|---|---|---|
| 37LC00375200 | NJ | Addiction (Substance Use Disorder)… primary |
This provider holds licence 37LC00375200 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 - Mental Health Counselor
- PAC ID
- 4183106966
- Enrollment ID
- I20260302001708
Medicare enrolment is recorded as approved under the provider type Practitioner - Mental Health Counselor. 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 (Substance Use Disorder) covers
Definition to come... NUCC Health Care Provider Taxonomy, code 101YA0400X
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 | 1053264234 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Feb 18, 2026 |
| Last updated | Feb 19, 2026 |
| Status | Active |
| Sole proprietor | No |
| Credential | LCADC |
| Practice address |
1440 PENNINGTON RD STE 1 Ewing, NJ 08618 (609) 890-1050 Fax (609) 890-0950 |
| Mailing address |
PO BOX 830826 Philadelphia, PA 19182 |
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 | 0 | 5 | 3 | 2 | 6 | 4 | 2 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 1 | 3 | 4 | 6 | 8 | 2 | 6 |
Sum = 56 · next multiple of 10 = 60 · check digit = 4 · actual last digit = 4
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.