NPPES file of Aug 9, 2026

Rhombus

Rhombus holds 2 active organization NPIs in the federal registry, with practice locations in 1 California city. 1 list psychologist as their primary taxonomy; each location can bill under its own NPI.

CMS NPPES registry, file of Aug 9, 2026 · legal names grouped after punctuation and "LLC" are removed · method · Verify with CMS →

Which NPI is yours?

Search the organization with your city to find the NPI for the location you visit or bill.

Find a location's NPI

La Mesa has the most NPIs, 2

  1. La Mesa2

Source: CMS NPPES monthly file of Aug 9, 2026, organization NPIs by practice city.

Most NPIs were issued in 2018 and 2019

Rhombus NPIs by year issued2018: 1, 2019: 100.30.50.812018201911
Rhombus NPIs by year issued2018: 1, 2019: 100.30.50.812018201911
Rhombus NPIs by year issued2018: 1, 2019: 100.30.50.812018201911

Source: CMS NPPES, enumeration dates.

1 NPIs were issued in 2018 alone, more than in any other year.

La Mesa locations

The city with the most Rhombus NPIs. The full list of all 2 follows.

NPILocationPrimary taxonomyIssued
10134821408058 LA MESA BLVD, La MesaPsychologistOct 4, 2018
18518596318058 LA MESA BLVD, La MesaClinical PsychologistMar 11, 2019
All 2 locations, by city
NPILocationPrimary taxonomyIssued
10134821408058 LA MESA BLVD, La MesaPsychologistOct 4, 2018
18518596318058 LA MESA BLVD, La MesaClinical PsychologistMar 11, 2019

Related names

Checking an organization

  1. Match the NPI to the exact location you will visit or bill; each location can have its own.
  2. Confirm the business entity with the secretary of state.
  3. Check the HHS-OIG exclusion list for the organization and its owners.
  4. Verify each clinician you will see on their own record and with the state license search.

Common questions

Why does Rhombus have 2 NPIs?

An organization may obtain more than one Type 2 NPI, for example for separate locations or units that bill on their own. Rhombus's NPIs list practice locations in 1 city.

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.