Individual provider

Libertad Lopez

Social Worker Marriage & Family Therapist Case Manager/Care Coordinator

Libertad Lopez is a provider specialising in Social Worker in Fresno, CA, registered under NPI 1558831578. This provider registers 4 separate taxonomy codes, which usually means they practise across more than one recognised specialty.

Getting there

The practice address on file is 3855 N WEST AVE STE 103-110, Fresno, CA 93705. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

3855 N WEST AVE STE 103-110, Fresno, CA 93705 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
132519 CA Social Worker primary
ASW132519 CA Marriage & Family Therapist

This provider holds licence 132519 issued in CA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.

Medicare (PECOS)

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
Behavioral Health & Social Service Providers Social Worker

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.

CodeSpecialtyLicenceState
104100000X Social Worker 132519 CA primary
106H00000X Marriage & Family Therapist ASW132519 CA
171M00000X Case Manager/Care Coordinator
373H00000X Day Training/Habilitation Specialist

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.

NPI1558831578 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateDec 3, 2018
Last updatedApr 21, 2026
StatusActive
Sole proprietorNo
Practice address 3855 N WEST AVE STE 103-110
Fresno, CA 93705
(559) 334-6433
Mailing address 3855 N WEST AVE STE 110-103
Fresno, CA 93705
This record was updated on Apr 21, 2026, which is recent enough that the contact details are likely still accurate.

Number check

1558831578 passes the NPI check digit test The final digit 8 matches the value computed from the first nine digits, so this is a well-formed NPI.
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 5 5 8 8 3 1 5 7
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 5 1 8 7 3 2 5 5

Sum = 62 · next multiple of 10 = 70 · 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.

Common questions

What is NPI number 1558831578?
NPI 1558831578 is the National Provider Identifier assigned to Libertad Lopez in Fresno, CA. It is a 10-digit number issued by the Centers for Medicare & Medicaid Services and used on claims, referrals, and prescriptions to identify the provider.
What does Social Worker cover?
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…
How do I contact Libertad Lopez?
The phone number on file with NPPES is (559) 334-6433, last updated Apr 21, 2026. Because NPPES is only updated when a provider files a change, call ahead to confirm the number and the current practice address before visiting.
Is NPI 1558831578 a valid number?
Yes. 1558831578 passes the Luhn check digit validation that CMS uses for NPI numbers, and it resolves to an active record in the registry.
How to use this page. Everything here comes from public federal records. Tips Health does not verify quality of care, confirm that a licence is currently active, or check malpractice history, and accepts no fees for placement. A listing is not a recommendation. Verify independently before seeking care.