Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. James Z. Chen, MD

Q: What is the NPI number for James Chen?

The National Provider Identifier (NPI) for James Chen is 1124056312, a Type 1 (individual) record in the CMS NPPES registry.

Radiation Oncology Physician in Chesterfield, MO · enumerated 2006.

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

National Provider Identifier

1124056312

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Registry record

Entity type Individual (Type 1)

Name Dr. James Z. Chen

Credential MD

Sex Male

Practice address 14014 Camberra Ct, Chen'S Radiation, Chesterfield, MO, 63017

Phone (314) 469-6893

Enumeration date Jun 28, 2006

Last updated in NPPES Sep 4, 2013

Taxonomy & licenses

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License R9620 (MO) 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
201056025	Medicaid	MO	-
2440268002	Medicaid	IL	-

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 James Chen?

The National Provider Identifier (NPI) for James Chen is 1124056312, a Type 1 (individual) record in the CMS NPPES registry.

Where does James Chen practice?

The practice location on file with NPPES is in Chesterfield, MO. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-09-04.