Joseph Liu, DDS
NPI 1750504478 · General Practice Dentistry · West Covina, CA
Enrolled with Medicare as Order and Referring Only - Dentist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joseph Liu, DDS is a General Practice Dentistry provider in West Covina, CA (NPI 1750504478).
Provider details
- NPI number
- 1750504478
- Entity type
- Individual
- Primary specialty
- General Practice DentistryDental Providers
- Credential
- DDS
- Sex
- Male
- Sole proprietor
- No
- License
- 36172 (CA)
Specialties & taxonomies
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$58 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-04-11
- Last updated
- 2007-07-08
Frequently asked questions
- What is Joseph Liu's NPI number?
- Joseph Liu's National Provider Identifier (NPI) is 1750504478, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Liu's specialty?
- Joseph Liu is listed in the NPPES registry with a primary specialty of General Practice Dentistry (Dental Providers).
- Where is Joseph Liu located?
- Joseph Liu's practice location on file with NPPES is 1014 S Glendora Ave, West Covina, CA 91790.
- What is Joseph Liu's phone number?
- The practice phone number listed in the NPPES registry for Joseph Liu is (626) 918-2886.
- Does Joseph Liu accept Medicare?
- Joseph Liu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joseph Liu's NPI active?
- Yes — Joseph Liu's NPI (1750504478) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.