Gilross Calixto
Gilross Calixto is a provider specialising in Attendant Care Provider in Long Beach, CA, registered under NPI 1811100944. 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 2703 E 7TH ST, Long Beach, CA 90804. 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 |
|---|---|---|
| 4175 | CA | Addiction (Substance Use Disorder)… |
This provider holds licence 4175 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 Attendant Care Provider covers
An individual who provides hands-on care, of both a supportive and health related nature, specific to the needs of a medically stable, physically handicapped individual. Supportive services are those that substitute for the absence, loss, diminution, or impairment of a physical or cognitive function. This service may include skilled or nursing care to the extent permitted by state law. NUCC Health Care Provider Taxonomy, code 3747A0650X
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 | |
|---|---|---|---|---|
| 3747A0650X | Attendant Care Provider Attendant Care Provider | — | — | primary |
| 101YA0400X | Addiction (Substance Use Disorder) Counselor Addiction (Substance Use Disorder) | 4175 | 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 | 1811100944 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 7, 2007 |
| Last updated | Sep 26, 2025 |
| Status | Active |
| Sole proprietor | No |
| Practice address |
2703 E 7TH ST Long Beach, CA 90804 (156) 243-3045 Fax (156) 243-3054 |
| Mailing address |
3001 MAINE AVE Long Beach, CA 90806 |
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 | 8 | 1 | 1 | 1 | 0 | 0 | 9 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 8 | 2 | 1 | 2 | 0 | 0 | 9 | 8 |
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.