Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Howard Liu, DDS, Inc

Q: What type of organization is Howard Liu, DDS, Inc?

Howard Liu, DDS, Inc is registered in NPPES as a Endodontics (its primary provider taxonomy).

Endodontics in Vallejo, CA · enumerated 2018 · authorized official Howard Liu, President.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1891266490

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Registry record

Entity type Organization (Type 2)

Legal business name Howard Liu, DDS, Inc

Practice address 1309 Tennessee St, Vallejo, CA, 94590

Phone (707) 642-3636

Enumeration date Dec 9, 2018

Last updated in NPPES Mar 14, 2023

Taxonomy & classification

1223E0200X Endodontics Dental Providers Primary

Authorized official

Name Howard Liu

Title President

Phone (646) 462-3898

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Howard Liu, DDS, Inc?

Howard Liu, DDS, Inc is registered in NPPES as a Endodontics (its primary provider taxonomy).

Providers at this address

Browse all →

Howard Liu Dentist · Vallejo, CA NPI 1932228681 Blake Mcray Dentist · Vallejo, CA NPI 1437348034 Blake W. Mcray, D.D.S., M.S.D., Inc. Endodontics · Vallejo, CA NPI 1437591930

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-14.