Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ms. Tjoen-Tan Widjaja, RPH
Pharmacist in San Leandro, CA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1073725537
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Registry record
Entity type Individual (Type 1)
Name Ms. Tjoen-Tan Widjaja
Credential RPH
Sex Female
Practice address 1355 Macarthur Blvd, San Leandro, CA, 94577
Phone (510) 351-3677
Fax (510) 352-7102
Enumeration date May 4, 2007
Last updated in NPPES Jun 29, 2008
Taxonomy & licenses
RPH · Registered Pharmacist: A licensed pharmacist registered with a state board of pharmacy.
About the RPH credential
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
Where does Tjoen-Tan Widjaja practice?
The practice location on file with NPPES is in San Leandro, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Tjoen-Tan Widjaja?
The National Provider Identifier (NPI) for Tjoen-Tan Widjaja is 1073725537, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Sherwin Samson Pharmacist · San Leandro, CA NPI 1376863001 Khoa Dao Pharmacist · San Leandro, CA NPI 1851681506 Hung Hua Pharmacist · San Leandro, CA NPI 1700200433 Tran Ha Pharmacist · San Leandro, CA NPI 1487105839 Gina Fraire Pharmacist · San Leandro, CA NPI 1265094361 Ashley Herrera Pharmacist · San Leandro, CA NPI 1972199958 Oanh Tran Pharmacist · San Leandro, CA NPI 1720742117
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-06-29.