Michelle Andrus, PMHNP-BC
Michelle Andrus, PMHNP-BC is a Psychiatric/Mental Health Nurse Practitioner in Fort Sam Houston, TX, registered under NPI 1114654340. This provider registers 3 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 3551 ROGER BROOKE DR, Fort Sam Houston, TX 78234. 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 |
|---|---|---|
| 77648 | ID | Psychiatric/Mental Health Nurse… primary |
| 77648 | ID | Registered Nurse |
| L-302839 | ID | Lactation Consultant (Registered Nurse) |
| NUR-APRN-LIC-179716 | MT | Psychiatric/Mental Health Nurse… |
Licences are recorded in 2 states: ID, MT. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
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.
Licensed in 2 states
This provider holds licences in 2 states: Idaho and Montana. Multi-state licensure often means the provider works near a state border, covers more than one office, or delivers care by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.
- Licence
- NUR-APRN-LIC-179716
- Specialty
- Psychiatric/Mental Health Nurse…
Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.
What Psychiatric/Mental Health covers
Definition to come... NUCC Health Care Provider Taxonomy, code 363LP0808X
All registered taxonomy codes
This provider registers 4 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 363LP0808X | Psychiatric/Mental Health Nurse Practitioner Psychiatric/Mental Health | 77648 | ID | primary |
| 163W00000X | Registered Nurse | 77648 | ID | |
| 163WL0100X | Lactation Consultant (Registered Nurse) Lactation Consultant | L-302839 | ID | |
| 363LP0808X | Psychiatric/Mental Health Nurse Practitioner Psychiatric/Mental Health | NUR-APRN-LIC-179716 | MT |
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 | 1114654340 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Aug 8, 2022 |
| Last updated | Feb 27, 2025 |
| Status | Active |
| Sole proprietor | No |
| Credential | PMHNP-BC |
| Practice address |
3551 ROGER BROOKE DR Fort Sam Houston, TX 78234 (726) 228-0433 |
| Mailing address |
7800 W INTERSTATE 10 San Antonio, TX 78230 |
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 | 1 | 4 | 6 | 5 | 4 | 3 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 1 | 2 | 4 | 3 | 5 | 8 | 3 | 8 |
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.