Joseph Hsu, PAC
NPI 1336444959 · Physician Assistant · Diamond Bar, CA
Joseph Hsu, PAC is a Physician Assistant provider in Diamond Bar, CA (NPI 1336444959).
Provider details
- NPI number
- 1336444959
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PAC
- Sex
- Male
- Sole proprietor
- Yes
- License
- PA21370 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 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
Mailing address
Registry dates
- Enumerated
- 2011-01-12
- Last updated
- 2018-02-16
Frequently asked questions
- What is Joseph Hsu's NPI number?
- Joseph Hsu's National Provider Identifier (NPI) is 1336444959, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Hsu's specialty?
- Joseph Hsu is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Joseph Hsu located?
- Joseph Hsu's practice location on file with NPPES is 1540 Bridgegate Dr, Diamond Bar, CA 91765-3912.
- What is Joseph Hsu's phone number?
- The practice phone number listed in the NPPES registry for Joseph Hsu is (626) 388-2359.
- Is Joseph Hsu's NPI active?
- Yes — Joseph Hsu's NPI (1336444959) is active in the NPPES registry as of the last update on 2018-02-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.