Ellen Chan, M.D.
NPI 1093958555 · Pediatric Cardiology Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ellen Chan, M.D. is a Pediatric Cardiology Physician provider in San Francisco, CA (NPI 1093958555).
Provider details
- NPI number
- 1093958555
- Entity type
- Individual
- Primary specialty
- Pediatric Cardiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- A94366 (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
17 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
- 2009-04-14
- Last updated
- 2014-06-02
Frequently asked questions
- What is Ellen Chan's NPI number?
- Ellen Chan's National Provider Identifier (NPI) is 1093958555, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ellen Chan's specialty?
- Ellen Chan is listed in the NPPES registry with a primary specialty of Pediatric Cardiology Physician (Allopathic & Osteopathic Physicians).
- Where is Ellen Chan located?
- Ellen Chan's practice location on file with NPPES is 3700 California St, San Francisco, CA 94118-1618.
- What is Ellen Chan's phone number?
- The practice phone number listed in the NPPES registry for Ellen Chan is (415) 600-0750.
- Does Ellen Chan accept Medicare?
- Ellen Chan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ellen Chan's NPI active?
- Yes — Ellen Chan's NPI (1093958555) is active in the NPPES registry as of the last update on 2014-06-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.