IndividualActive
Margaret Chan, M.D.
NPI 1265517791 · Family Medicine Physician · San Carlos, CA
Margaret Chan, M.D. is a Family Medicine Physician provider in San Carlos, CA (NPI 1265517791).
Provider details
- NPI number
- 1265517791
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A61035 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
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
301 Industrial Rd
San Carlos, CA 94070-2603
Phone: (650) 598-3160
Street-level locationGet directions
Mailing address
2350 W. El Camino Real
Mountain View, CA 94040-6203
Registry dates
- Enumerated
- 2006-10-25
- Last updated
- 2016-11-15
Frequently asked questions
- What is Margaret Chan's NPI number?
- Margaret Chan's National Provider Identifier (NPI) is 1265517791, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Chan's specialty?
- Margaret Chan is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Margaret Chan located?
- Margaret Chan's practice location on file with NPPES is 301 Industrial Rd, San Carlos, CA 94070-2603.
- What is Margaret Chan's phone number?
- The practice phone number listed in the NPPES registry for Margaret Chan is (650) 598-3160.
- Is Margaret Chan's NPI active?
- Yes — Margaret Chan's NPI (1265517791) is active in the NPPES registry as of the last update on 2016-11-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.