Individual provider

Minyu Liao, MENTAL HEALTH WORKER

Clinical Social Worker Behavior Technician Social Worker

Minyu Liao, MENTAL HEALTH WORKER is a provider specialising in Clinical Social Worker in Vacaville, CA, registered under NPI 1003386699. This provider registers 6 separate taxonomy codes, which usually means they practise across more than one recognised specialty.

Getting there

The practice address on file is 770 MASON ST STE 120, Vacaville, CA 95688. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

770 MASON ST STE 120, Vacaville, CA 95688 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
135528 CA Clinical Social Worker primary
ASW102748 CA Social Worker
ASW102748 CA Mental Health Counselor
LCSW135528 CA Social Worker

This provider holds licence 135528 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 Clinical covers

A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances. NUCC Health Care Provider Taxonomy, code 1041C0700X
Behavioral Health & Social Service Providers Social Worker Clinical

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.

CodeSpecialtyLicenceState
1041C0700X Clinical Social Worker Clinical 135528 CA primary
106S00000X Behavior Technician
104100000X Social Worker ASW102748 CA
101YM0800X Mental Health Counselor Mental Health ASW102748 CA
390200000X Student in an Organized Health Care Education/Training Program
104100000X Social Worker LCSW135528 CA
225400000X Rehabilitation Practitioner

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.

NPI1003386699 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateNov 27, 2018
Last updatedApr 24, 2026
StatusActive
Sole proprietorNo
CredentialMENTAL HEALTH WORKER
Practice address 770 MASON ST STE 120
Vacaville, CA 95688
(855) 501-1004
Mailing address 3835 N FREEWAY BLVD STE 100
Sacramento, CA 95834
This record was updated on Apr 24, 2026, which is recent enough that the contact details are likely still accurate.

Number check

1003386699 passes the NPI check digit test The final digit 9 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 0 0 3 3 8 6 6 9
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 0 0 3 6 8 3 6 9

Sum = 61 · next multiple of 10 = 70 · check digit = 9 · actual last digit = 9

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 1003386699?
NPI 1003386699 is the National Provider Identifier assigned to Minyu Liao, MENTAL HEALTH WORKER in Vacaville, 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 Clinical cover?
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of…
How do I contact Minyu Liao, MENTAL HEALTH WORKER?
The phone number on file with NPPES is (855) 501-1004, last updated Apr 24, 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 1003386699 a valid number?
Yes. 1003386699 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.