Elaine Chien, MD
NPI 1457423295 · Obstetrics & Gynecology Physician · Redwood City, CA
Elaine Chien, MD is a Obstetrics & Gynecology Physician provider in Redwood City, CA (NPI 1457423295).
Provider details
- NPI number
- 1457423295
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A67860 (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
- 2006-11-15
- Last updated
- 2012-02-28
Frequently asked questions
- What is Elaine Chien's NPI number?
- Elaine Chien's National Provider Identifier (NPI) is 1457423295, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Elaine Chien's specialty?
- Elaine Chien is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Elaine Chien located?
- Elaine Chien's practice location on file with NPPES is 2900 Whipple Ave, Redwood City, CA 94062-2843.
- What is Elaine Chien's phone number?
- The practice phone number listed in the NPPES registry for Elaine Chien is (650) 366-5594.
- Is Elaine Chien's NPI active?
- Yes — Elaine Chien's NPI (1457423295) is active in the NPPES registry as of the last update on 2012-02-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.