Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Christopher Chong, M.D.

Diagnostic Radiology Physician in Sacramento, CA · enumerated 2005.

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

National Provider Identifier

1851397772

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Registry record

Entity type Individual (Type 1)

Name Dr. Christopher Chong

Credential M.D.

Sex Male

Practice address 3161 L St, Sacramento, CA, 95816

Phone (916) 453-9999

Fax (916) 739-1099

Enumeration date Jun 24, 2005

Last updated in NPPES Jul 28, 2015

Taxonomy & licenses

2085B0100X Body Imaging Physician Allopathic & Osteopathic Physicians · License A42211 (CA) Secondary

2085N0700X Neuroradiology Physician Allopathic & Osteopathic Physicians · License A42211 (CA) Secondary

2085N0904X Nuclear Radiology Physician Allopathic & Osteopathic Physicians · License A42211 (CA) Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License A42211 (CA) Primary

2085R0203X Therapeutic Radiology Physician Allopathic & Osteopathic Physicians · License A42211 (CA) Secondary

2085R0204X Vascular & Interventional Radiology Physician Allopathic & Osteopathic Physicians · License A42211 (CA) Secondary

2085R0205X Radiological Physics Physician Allopathic & Osteopathic Physicians · License A42211 (CA) Secondary

2085U0001X Diagnostic Ultrasound Physician Allopathic & Osteopathic Physicians · License A42211 (CA) Secondary

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 Christopher Chong's NPI record?

Cross-check NPI 1851397772 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1851397772 active?

Yes, as of the latest NPPES snapshot, NPI 1851397772 is active (record last updated 2015-07-28).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-07-28.