NPPES file of Aug 9, 2026

Advanced Mso in Walnut, CA

This organization bills under NPI 1851926299, an organization record issued on Mar 5, 2020 with the primary taxonomy Health Maintenance Organization. Each clinician who works there has their own NPI and license.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

Organization recordNPPES, Aug 2026
1851926299
Legal name
Advanced Mso
Entity
Type 2 · organization
Primary taxonomy
Health Maintenance Organization 302R00000X
Practice location
18800 AMAR RD STE B2, Walnut, CA 91789
Phone
888-998-9833
Enumerated
Mar 5, 2020
Record updated
Mar 5, 2020
Authorized official
President (title as filed)
Public record from the NPPES NPI Registry (open it on CMS). An NPI identifies who bills; it is not a facility license.

Checking an organization

  1. Confirm the business with the California secretary of state.
  2. Check the HHS-OIG exclusion list for the organization.
  3. Verify each clinician on their own record and the state license search.

All taxonomies on this record

  • 261QM1300X Multi-Specialty Clinic/Center
  • 302R00000X Health Maintenance Organization
  • 305R00000X Preferred Provider Organization

Common questions

Is an organization NPI a license?

No. An NPI identifies who bills. Facilities and the clinicians who work there are licensed separately by the state.

Source: CMS National Plan and Provider Enumeration System (NPPES), monthly file of Aug 9, 2026 (NPPES files on CMS.gov). An NPI identifies who bills; it is not a license.