Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Johns Norman Liu, M.D.

Diagnostic Radiology Physician in Bakersfield, CA · enumerated 2006 · practices at Kern Radiology Medical Group, Inc.

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

National Provider Identifier

1659390979

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Registry record

Entity type Individual (Type 1)

Name Johns Norman Liu

Credential M.D.

Sex Male

Practice address 2301 Bahamas Dr, Bakersfield, CA, 93309

Phone (661) 326-9600

Fax (661) 334-3065

Enumeration date Jul 18, 2006

Last updated in NPPES Aug 16, 2011

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License G58887 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1659390979 active?

Yes, as of the latest NPPES snapshot, NPI 1659390979 is active (record last updated 2011-08-16).

How do I verify Johns Liu's NPI record?

Cross-check NPI 1659390979 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-08-16.