Erika Olivarez, LMSW
Erika Olivarez, LMSW is a provider specialising in Social Worker in Harlingen, TX, registered under NPI 1003484460.
Getting there
Here is what surrounds this office in Harlingen, based on OpenStreetMap data collected Sep 30, 2026. Parking is available about 0.32 mi away. A pharmacy sits 0.45 mi from the entrance (H-E-B Pharmacy), which helps if you leave with a prescription.
Getting here and what is nearby
Restaurant Frankie Flav'z 347 ft ~2 min
Restaurant Domino's 348 ft ~2 min
713 North 77 Sunshine Strip, Harlingen 78550
Mo-Th 10:30-24:00; Fr-Sa 10:30-01:00; Su 10:30-24:00
Restaurant Subway 357 ft ~2 min
715A North 77 Sunshine Strip, Harlingen 78550
Mo-Sa 08:00-22:00; Su 09:00-22:00
Parking 940 ft ~4 min
Parking 0.29 mi ~6 min
Parking 0.32 mi ~7 min
Gas station H-E-B Fuel 0.40 mi ~8 min
1103 Morgan Boulevard, Harlingen 78550
Grocery H-E-B 0.44 mi ~9 min
Pharmacy H-E-B Pharmacy 0.45 mi ~9 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 103875 | TX | Social Worker primary |
This provider holds licence 103875 issued in TX. 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 Social Worker covers
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public. NUCC Health Care Provider Taxonomy, code 104100000X
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 | 1003484460 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jun 14, 2021 |
| Last updated | Jun 14, 2021 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | LMSW |
| Practice address |
1317 E WASHINGTON AVE Harlingen, TX 78550 (956) 291-3458 |
| Mailing address |
157 CAMEO DR San Benito, TX 78586 |
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 | 0 | 0 | 3 | 4 | 8 | 4 | 4 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 8 | 8 | 4 | 3 |
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.