Vivien Chan, M.D.
NPI 1871509026 · Child & Adolescent Psychiatry Physician · Irvine, CA
Vivien Chan, M.D. is a Child & Adolescent Psychiatry Physician provider in Irvine, CA (NPI 1871509026).
Provider details
- NPI number
- 1871509026
- Entity type
- Individual
- Primary specialty
- Child & Adolescent Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A70354 (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 tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- 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.
$24 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
Additional practice locations (1)
- 6363 Greenwich Dr Ste 101San Diego, CA 92122-5948Phone: (858) 249-0466
Registry dates
- Enumerated
- 2006-07-31
- Last updated
- 2020-12-24
- Certified
- 2020-12-24
Frequently asked questions
- What is Vivien Chan's NPI number?
- Vivien Chan's National Provider Identifier (NPI) is 1871509026, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Vivien Chan's specialty?
- Vivien Chan is listed in the NPPES registry with a primary specialty of Child & Adolescent Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Vivien Chan located?
- Vivien Chan's practice location on file with NPPES is 501 Student Health, Irvine, CA 92697.
- What is Vivien Chan's phone number?
- The practice phone number listed in the NPPES registry for Vivien Chan is (949) 824-5304.
- Is Vivien Chan's NPI active?
- Yes — Vivien Chan's NPI (1871509026) is active in the NPPES registry as of the last update on 2020-12-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.