Janet Chiang
NPI 1477842458 · Endocrinology, Diabetes & Metabolism Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Janet Chiang is a Endocrinology, Diabetes & Metabolism Physician provider in San Francisco, CA (NPI 1477842458).
Provider details
- NPI number
- 1477842458
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- A123449 (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
15 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
- 2011-03-30
- Last updated
- 2021-08-02
- Certified
- 2021-08-02
Frequently asked questions
- What is Janet Chiang's NPI number?
- Janet Chiang's National Provider Identifier (NPI) is 1477842458, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Janet Chiang's specialty?
- Janet Chiang is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Janet Chiang located?
- Janet Chiang's practice location on file with NPPES is 505 Parnassus Ave, San Francisco, CA 94143.
- What is Janet Chiang's phone number?
- The practice phone number listed in the NPPES registry for Janet Chiang is (415) 234-3960.
- Does Janet Chiang accept Medicare?
- Janet Chiang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Janet Chiang's NPI active?
- Yes — Janet Chiang's NPI (1477842458) is active in the NPPES registry as of the last update on 2021-08-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.