Evelyn Alcaina Hernandez
Evelyn Alcaina Hernandez is a Registered Nurse First Assistant in Norman, OK, registered under NPI 1396683538. This provider registers 7 separate taxonomy codes, which usually means they practise across more than one recognised specialty. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
The practice address on file is 1303 W TECUMSEH RD APT 437, Norman, OK 73069. 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 |
|---|---|---|
| 227893 | OK | Continuing Education/Staff Development… |
| 227893 | OK | Home Health Registered Nurse |
| 227893 | OK | Infusion Therapy Registered Nurse |
| 227893 | OK | Nutrition Support Registered Nurse |
| 227893 | OK | Pain Management Registered Nurse |
| 227893 | OK | Ambulatory Care Registered Nurse |
| 227893 | OK | Registered Nurse First Assistant primary |
This provider holds licence 227893 issued in OK. 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 Registered Nurse First Assistant covers
A perioperative registered nurse who works in collaboration with the surgeon and other health care team members to achieve optimal outcomes. The RNFA has acquired the necessary knowledge, judgment, and skills specific to the expanded role of RNFA clinical practice. Intraoperatively, the RNFA assists the surgeon. NUCC Health Care Provider Taxonomy, code 163WR0006X
All registered taxonomy codes
This provider registers 7 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 163WC1600X | Continuing Education/Staff Development Registered Nurse Continuing Education/Staff Development | 227893 | OK | |
| 163WH0200X | Home Health Registered Nurse Home Health | 227893 | OK | |
| 163WI0500X | Infusion Therapy Registered Nurse Infusion Therapy | 227893 | OK | |
| 163WN1003X | Nutrition Support Registered Nurse Nutrition Support | 227893 | OK | |
| 163WP0000X | Pain Management Registered Nurse Pain Management | 227893 | OK | |
| 163WP2201X | Ambulatory Care Registered Nurse Ambulatory Care | 227893 | OK | |
| 163WR0006X | Registered Nurse First Assistant Registered Nurse First Assistant | 227893 | OK | 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 | 1396683538 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 21, 2026 |
| Last updated | Mar 21, 2026 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Practice address |
1303 W TECUMSEH RD APT 437 Norman, OK 73069 (346) 498-5208 |
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 | 3 | 9 | 6 | 6 | 8 | 3 | 5 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 3 | 9 | 6 | 3 | 8 | 6 | 5 | 6 |
Sum = 72 · next multiple of 10 = 80 · check digit = 8 · actual last digit = 8
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.