NEW EXISTENCE LLC
NEW EXISTENCE LLC is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1568815454, based in Fountain Valley, CA. The organization lists 2 taxonomy classifications, with Substance Use Disorder Rehabilitation Clinic/Center recorded as primary.
Getting there
The practice address on file is 17971 EUCLID ST, Fountain Valley, CA 92708. 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 |
|---|---|---|
| 201605310246 | CA | Adult Mental Health Clinic/Center |
This provider holds licence 201605310246 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 Rehabilitation, Substance Use Disorder covers
Definition to come... NUCC Health Care Provider Taxonomy, code 261QR0405X
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 | |
|---|---|---|---|---|
| 261QR0405X | Substance Use Disorder Rehabilitation Clinic/Center Rehabilitation, Substance Use Disorder | — | — | primary |
| 261QM0850X | Adult Mental Health Clinic/Center Adult Mental Health | 201605310246 | 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-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1568815454 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Jul 15, 2016 |
| Last updated | Mar 26, 2026 |
| Status | Active |
| Practice address |
17971 EUCLID ST Fountain Valley, CA 92708 (949) 919-6490 Fax (714) 333-4489 |
| Mailing address |
PO BOX 2320 Costa Mesa, CA 92628 |
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 | 6 | 8 | 8 | 1 | 5 | 4 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 5 | 3 | 8 | 7 | 1 | 1 | 4 | 1 |
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.