Martha Nunez, ACSW
Martha Nunez, ACSW is a provider specialising in Social Worker in Ontario, CA, registered under NPI 1003344771. This provider registers 4 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
Here is what surrounds this office in Ontario, based on OpenStreetMap data collected Sep 8, 2026. Parking is available about 0.31 mi away. If you arrive early, there is a coffee shop 0.33 mi away.
Getting here and what is nearby
Gas station Mobil 0.25 mi ~6 min
Restaurant Ontar Thai 0.25 mi ~5 min
Parking 0.27 mi ~6 min
Parking 0.30 mi ~6 min
Gas station Arco 0.31 mi ~7 min
729 Archibald Avenue, Ontario 91764
Hotel Hampton Inn by Hilton Ontario Airport 0.31 mi ~7 min
Hotel Home2 Suites by Hilton Ontario Airport 0.31 mi ~7 min
Parking 0.31 mi ~7 min
Coffee Starbucks 0.33 mi ~7 min
Restaurant Baker's Drive-Thru 0.34 mi ~7 min
2695 Inland Empire Boulevard, Ontario 91764
Hotel Fairfield Inn Ontario 0.41 mi ~9 min
Restaurant Panda Inn 0.45 mi ~9 min
3223 Centrelake Dr, Ontario
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
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 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
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 | |
|---|---|---|---|---|
| 104100000X | Social Worker | — | — | primary |
| 101Y00000X | Counselor | — | — | |
| 101YM0800X | Mental Health Counselor Mental Health | — | — | |
| 390200000X | Student in an Organized Health Care Education/Training Program | — | — |
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 | 1003344771 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 25, 2017 |
| Last updated | Jul 22, 2024 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | ACSW |
| Practice address |
2940 INLAND EMPIRE BLVD Ontario, CA 91764 (909) 458-1517 Fax (909) 944-2917 |
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 | 3 | 4 | 4 | 7 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 4 | 8 | 7 | 5 |
Sum = 59 · next multiple of 10 = 60 · check digit = 1 · actual last digit = 1
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.