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Mary Phuong Bui

Nephrology Physician in Upland, CA · enumerated 2006.

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

National Provider Identifier

1841225224

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Registry record

Entity type Individual (Type 1)
Name Mary Phuong Bui
Sex Female
Practice address 1317 W Foothill Blvd, Ste 148, Upland, CA, 91786
Phone (909) 981-5882
Fax (909) 946-0833
Enumeration date Jul 12, 2006
Last updated in NPPES Jan 30, 2020

Taxonomy & licenses

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License 20A8116 (CA) Primary

Other identifiers

Identifier Type State Issuer
00AX81160 Medicaid CA -

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 specialty is Mary Bui?
Mary Bui is registered in NPPES with the primary taxonomy of Nephrology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-01-30.