IndividualActive
William Liu, PHARM.D.
NPI 1053498253 · Geriatric Pharmacist · Orange, CA
William Liu, PHARM.D. is a Geriatric Pharmacist provider in Orange, CA (NPI 1053498253).
Provider details
- NPI number
- 1053498253
- Entity type
- Individual
- Primary specialty
- Geriatric PharmacistPharmacy Service Providers
- Credential
- PHARM.D.
- Sex
- Male
- Sole proprietor
- No
- License
- RPH 27194 (CA)
Specialties & taxonomies
Pharmacy Service Providers
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
4000 W Metropolitan Dr Ste 120
Orange, CA 92868-3504
Phone: (714) 972-3726
Street-level locationGet directions
Mailing address
Po Box 5302
Hacienda Heights, CA 91745-0302
Registry dates
- Enumerated
- 2006-11-01
- Last updated
- 2022-07-08
- Certified
- 2022-07-08
Frequently asked questions
- What is William Liu's NPI number?
- William Liu's National Provider Identifier (NPI) is 1053498253, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Liu's specialty?
- William Liu is listed in the NPPES registry with a primary specialty of Geriatric Pharmacist (Pharmacy Service Providers).
- Where is William Liu located?
- William Liu's practice location on file with NPPES is 4000 W Metropolitan Dr Ste 120, Orange, CA 92868-3504.
- What is William Liu's phone number?
- The practice phone number listed in the NPPES registry for William Liu is (714) 972-3726.
- Is William Liu's NPI active?
- Yes — William Liu's NPI (1053498253) is active in the NPPES registry as of the last update on 2022-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.