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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mrs. Donna T Sun, RPH

Pharmacist in Diamond Bar, CA · enumerated 2010.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1972820876

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Registry record

Entity type Individual (Type 1)
Name Mrs. Donna T Sun
Credential RPH
Sex Female
Practice address Diamond Bar, CA, 91765
Phone (909) 595-0912
Fax (909) 468-0872
Enumeration date May 1, 2010
Last updated in NPPES May 1, 2010

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License RPH44961 (CA) Primary
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.

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Frequently asked questions

What is the NPI number for Donna Sun?
The National Provider Identifier (NPI) for Donna Sun is 1972820876, a Type 1 (individual) record in the CMS NPPES registry.
Where does Donna Sun practice?
The practice location on file with NPPES is in Diamond Bar, CA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-05-01.