Ellen To
Pharmacist · Fullerton, CA
Ellen To is a pharmacist with a practice address in Fullerton, California, and NPI 1558644278, issued on Sep 20, 2011. Check the license (California 55847, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Ellen To
- Primary taxonomy
- Pharmacist 183500000X
- License number
- 55847 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1250 E Chapman Ave, Fullerton, CA 92831
- Phone
- (714) 680-9124
- Enumerated
- Sep 20, 2011
- Record last updated
- Dec 14, 2011 (not updated in 15 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest pharmacist records → All 32,533 in California → Look up another NPI →
Also registered at 1250 E Chapman Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Deborah ChowPharmacist1194002352
- Pedro ConcepcionPharmacy Technician1740087857
- Naty Long, PHARMDPharmacist1265947360
- Kathelen NguyenPharmacist1952683096
- Earl SatoPharmacist1972870830
- Minh Vong, PHARMDPharmacist1417497769
Verify Ellen To in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 55847Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Ellen To among 32,533 pharmacist records in California
Ellen To is one of 32,533 pharmacist records with a practice address in California. 15% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2011, is newer than 18% of them.
- NPI issued2011 · 18% of these records are older, 72% newer
- In a Medicare fileNo · 15% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2011 · 76% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 183500000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
144 pharmacist records list a practice address in Fullerton
They are 144 of the 5,437 NPPES records with a practice address in Fullerton, and 32,533 pharmacist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 32,533 in California → Every provider in Fullerton → Pharmacist nationwide →
The 8 pharmacist records with the nearest ZIP codes
- Kiok BaeFullerton, CA 928311932272192
- Cheyenne Chang, PHARMD, RPHFullerton, CA 928311407246044
- John Ching, RPHFullerton, CA 928311932427184
- Deborah ChowFullerton, CA 928311194002352
- Frank DanielFullerton, CA 928311972841674
- Sandra Davis, PHARMDFullerton, CA 928311396066270
- Barbara Gee, PHARM.DFullerton, CA 928311962622316
- Phong Ly, PHARM. D.Fullerton, CA 928311386846343
Common questions
What is Ellen To's NPI number?
Ellen To's National Provider Identifier (NPI) is 1558644278, issued on Sep 20, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Ellen To located?
The NPPES record lists a practice address at 1250 E Chapman Ave, Fullerton, CA, 92831. Phone: (714) 680-9124. Providers update this record themselves, so call before visiting.
How can I verify Ellen To's license?
NPPES lists California license number 55847, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.