Crystal Harper, MSN, APRN, AGCNS-BC
Crystal Harper, MSN, APRN, AGCNS-BC is a Clinical Nurse Specialist in Austin, TX, registered under NPI 1750790556. 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 1600 W. 38TH STREET SUITE 308, Austin, TX 78731. 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 |
|---|---|---|
| AP126020 | TX | Adult Health Clinical Nurse Specialist |
| AP126020 | TX | Gerontology Clinical Nurse Specialist |
| 126020 | TX | Clinical Nurse Specialist primary |
This provider holds licence AP126020 issued in TX. 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 - Nurse Practitioner
- PAC ID
- 2365664414
- Enrollment ID
- I20141105002054
Medicare enrolment is recorded as approved under the provider type Practitioner - Nurse Practitioner. 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 Clinical Nurse Specialist covers
A registered nurse who, through a graduate degree program in nursing, or through a formal post-basic education program or continuing education courses and clinical experience, is expert in a specialty area of nursing practice within one or more of the components of direct patient/client care, consultation, education, research and administration. NUCC Health Care Provider Taxonomy, code 364S00000X
All registered taxonomy codes
This provider registers 3 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 364SA2200X | Adult Health Clinical Nurse Specialist Adult Health | AP126020 | TX | |
| 364SG0600X | Gerontology Clinical Nurse Specialist Gerontology | AP126020 | TX | |
| 364S00000X | Clinical Nurse Specialist | 126020 | TX | primary |
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 | 1750790556 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Aug 5, 2014 |
| Last updated | Oct 15, 2019 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | MSN, APRN, AGCNS-BC |
| Practice address |
1600 W. 38TH STREET SUITE 308 Austin, TX 78731 (512) 324-3540 Fax (512) 324-3541 |
| Mailing address |
1600 W 38TH ST STE 308 Austin, TX 78731 |
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 | 7 | 5 | 0 | 7 | 9 | 0 | 5 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 7 | 1 | 0 | 5 | 9 | 0 | 5 | 1 |
Sum = 54 · next multiple of 10 = 60 · check digit = 6 · actual last digit = 6
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.