IndividualActive
Joyce Sun, PHD
NPI 1093373177 · Clinical Psychologist · Fremont, CA
Joyce Sun, PHD is a Clinical Psychologist provider in Fremont, CA (NPI 1093373177).
Provider details
- NPI number
- 1093373177
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Female
- Sole proprietor
- Yes
- License
- PSY30894 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(66/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 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
39210 State St Ste 109
Fremont, CA 94538-1456
Phone: (510) 818-0892
Approximate (ZIP-level) locationGet directions
Mailing address
3235 Beard Rd
Fremont, CA 94555-2236
Registry dates
- Enumerated
- 2019-06-03
- Last updated
- 2019-06-03
Frequently asked questions
- What is Joyce Sun's NPI number?
- Joyce Sun's National Provider Identifier (NPI) is 1093373177, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joyce Sun's specialty?
- Joyce Sun is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Joyce Sun located?
- Joyce Sun's practice location on file with NPPES is 39210 State St Ste 109, Fremont, CA 94538-1456.
- What is Joyce Sun's phone number?
- The practice phone number listed in the NPPES registry for Joyce Sun is (510) 818-0892.
- Is Joyce Sun's NPI active?
- Yes — Joyce Sun's NPI (1093373177) is active in the NPPES registry as of the last update on 2019-06-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.