Vivian Sun, MD
NPI 1295891703 · Child & Adolescent Psychiatry Physician · Concord, CA
Vivian Sun, MD is a Child & Adolescent Psychiatry Physician provider in Concord, CA (NPI 1295891703).
Provider details
- NPI number
- 1295891703
- Entity type
- Individual
- Primary specialty
- Child & Adolescent Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A99510 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
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
Mailing address
Registry dates
- Enumerated
- 2006-12-29
- Last updated
- 2011-02-17
Frequently asked questions
- What is Vivian Sun's NPI number?
- Vivian Sun's National Provider Identifier (NPI) is 1295891703, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Vivian Sun's specialty?
- Vivian Sun is listed in the NPPES registry with a primary specialty of Child & Adolescent Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Vivian Sun located?
- Vivian Sun's practice location on file with NPPES is 1420 Willow Pass Rd, Concord, CA 94520-5223.
- What is Vivian Sun's phone number?
- The practice phone number listed in the NPPES registry for Vivian Sun is (925) 646-5480.
- Is Vivian Sun's NPI active?
- Yes — Vivian Sun's NPI (1295891703) is active in the NPPES registry as of the last update on 2011-02-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.