What is Ester Chan's NPI number?

Ester Chan's National Provider Identifier (NPI) is 1336931187, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Ester Chan's specialty?

Ester Chan is listed in the NPPES registry with a primary specialty of Pharmacist (Pharmacy Service Providers).

Where is Ester Chan located?

Ester Chan's practice location on file with NPPES is 2605 Middlefield Rd, Palo Alto, CA 94306-2516.

What is Ester Chan's phone number?

The practice phone number listed in the NPPES registry for Ester Chan is (650) 566-9723.

Is Ester Chan's NPI active?

Yes — Ester Chan's NPI (1336931187) is active in the NPPES registry as of the last update on 2025-05-19.

IndividualActive

Ester Chan

NPI 1336931187 · Pharmacist · Palo Alto, CA

Ester Chan is a Pharmacist provider in Palo Alto, CA (NPI 1336931187).

Provider details

NPI number: 1336931187
Entity type: Individual
Primary specialty: PharmacistPharmacy Service Providers
Sex: Female
Sole proprietor: No
License: 90796 (CA)

Specialties & taxonomies

PharmacistPrimary183500000XLicense 90796 (CA)
Pharmacy Service Providers

Profile Score

Established profile(54/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
1 yr 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

2605 Middlefield Rd

Palo Alto, CA 94306-2516

Phone: (650) 566-9723

Street-level locationGet directions

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Mailing address