Vivien Tseng, MD
NPI 1184798787 · Pediatrics Physician · Elk Grove, CA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Vivien Tseng, MD is a Pediatrics Physician provider in Elk Grove, CA (NPI 1184798787).
Provider details
- NPI number
- 1184798787
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A71425 (CA)
Specialties & taxonomies
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
- 2006-11-17
- Last updated
- 2022-01-10
Frequently asked questions
- What is Vivien Tseng's NPI number?
- Vivien Tseng's National Provider Identifier (NPI) is 1184798787, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Vivien Tseng's specialty?
- Vivien Tseng is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Vivien Tseng located?
- Vivien Tseng's practice location on file with NPPES is 9201 Big Horn Blvd, Elk Grove, CA 95758-1240.
- What is Vivien Tseng's phone number?
- The practice phone number listed in the NPPES registry for Vivien Tseng is (916) 478-5000.
- Does Vivien Tseng accept Medicare?
- Vivien Tseng is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Vivien Tseng's NPI active?
- Yes — Vivien Tseng's NPI (1184798787) is active in the NPPES registry as of the last update on 2022-01-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.