Active NPI
Ester Chan
- Pharmacist
- Palo Alto, CA
National Provider Identifier
1336931187
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Pharmacist
- License
- 90796
- Practice address
- 2605 Middlefield Rd
Palo Alto, CA 94306-2516 - Phone
- (650) 566-9723
- NPI assigned
- May 19, 2025
- Sex
- Female
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Pharmacist | 183500000X | 90796 | CA | Primary |
Addresses
Primary practice location
2605 Middlefield Rd
Palo Alto, CA 94306-2516
Mailing address
2605 Middlefield Rd
Palo Alto, CA 94306-2516
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 90796 | CA | MD | Pharmacist |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Walgreen Co | Past | Accepting new patients | |
| Walgreen Co | Past | Accepting new patients |
Organizations & group practices 2
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1747612800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1747612800000",
"number": "1336931187",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "2605 MIDDLEFIELD RD",
"city": "PALO ALTO",
"state": "CA",
"postal_code": "943062516"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "2605 MIDDLEFIELD RD",
"city": "PALO ALTO",
"state": "CA",
"postal_code": "943062516",
"telephone_number": "650-566-9723"
}
],
"practiceLocations": [],
"basic": {
"last_name": "CHAN",
"first_name": "ESTER",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2025-05-19",
"last_updated": "2025-05-19",
"certification_date": "2025-05-19",
"status": "A"
},
"taxonomies": [
{
"code": "183500000X",
"taxonomy_group": "",
"desc": "Pharmacist",
"state": "CA",
"license": "90796",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Palo Alto, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 19, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.