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Dr. Gigi Qiqi Chen, M.D.

Hematology & Oncology Physician in Pleasant Hill, CA · enumerated 2005.

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

National Provider Identifier

1821073636

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Registry record

Entity type Individual (Type 1)
Name Dr. Gigi Qiqi Chen
Credential M.D.
Sex Female
Practice address 400 Taylor Blvd, Suite 202, Pleasant Hill, CA, 94523
Phone (925) 677-5041
Fax (925) 677-5025
Enumeration date Dec 14, 2005
Last updated in NPPES Aug 2, 2021

Taxonomy & licenses

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License A84387 (CA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
P00746202 Other - RAILROAD MEDICARE

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Gigi Chen?
The National Provider Identifier (NPI) for Gigi Chen is 1821073636, a Type 1 (individual) record in the CMS NPPES registry.
Where does Gigi Chen practice?
The practice location on file with NPPES is in Pleasant Hill, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-08-02.