Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Karen Chee, M.D.

Hematology & Oncology Physician in San Mateo, CA · enumerated 2005 · practices at California Cancer Care A Medical Group Inc.

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

National Provider Identifier

1487637310

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Registry record

Entity type Individual (Type 1)

Name Dr. Karen Chee

Credential M.D.

Sex Female

Practice address 218 De Anza Blvd, San Mateo, CA, 94402

Phone (650) 341-9131

Fax (650) 341-9135

Enumeration date Nov 23, 2005

Last updated in NPPES Jun 2, 2011

Taxonomy & licenses

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License A81314 (CA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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

How do I verify Karen Chee's NPI record?

Cross-check NPI 1487637310 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1487637310 active?

Yes, as of the latest NPPES snapshot, NPI 1487637310 is active (record last updated 2011-06-02).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-06-02.