CARMEN TRAILL PLLC
CARMEN TRAILL PLLC is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1558503813, based in Mesa, AZ. It is classified under Psychiatric/Mental Health Nurse Practitioner.
Getting there
The practice address on file is 1855 E SOUTHERN AVE SUITE #201, Mesa, AZ 85204. 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
NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.
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 Psychiatric/Mental Health covers
Definition to come... NUCC Health Care Provider Taxonomy, code 363LP0808X
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 | 1558503813 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Apr 1, 2009 |
| Last updated | Apr 1, 2009 |
| Status | Active |
| Practice address |
1855 E SOUTHERN AVE SUITE #201 Mesa, AZ 85204 (602) 402-1542 Fax (650) 412-1542 |
| Mailing address |
PO BOX 22275 Phoenix, AZ 85028 |
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 | 5 | 8 | 5 | 0 | 3 | 8 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 5 | 1 | 8 | 1 | 0 | 6 | 8 | 2 |
Sum = 57 · next multiple of 10 = 60 · check digit = 3 · actual last digit = 3
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.