Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Johnson Chiu, MD
Hospitalist Physician in Orange, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1356412241
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Registry record
Entity type Individual (Type 1)
Name Johnson Chiu
Credential MD
Sex Male
Practice address 1310 W Stewart Dr, Suite 410, Orange, CA, 92868
Phone (714) 639-9401
Fax (714) 639-4105
Enumeration date Nov 13, 2006
Last updated in NPPES Oct 21, 2020
Taxonomy & licenses
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A87164 (CA) Secondary
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 |
|---|---|---|---|
| GR0003350 | Other | CA | MEDICAID - GROUP PROVIDER |
| 00A871640 | Medicaid | CA | - |
| 1912919804 | Other | - | NPI - TYPE 2 |
| W1514 | Other | CA | MEDICARE PTAN - TYPE 2 |
| CG5665 | Other | CA | RAIL ROAD MEDICARE - GROUP PTAN |
| P00734040 | Other | CA | RAIL ROAD MEDICARE - PROVIDER PTAN |
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.
Frequently asked questions
Is NPI 1356412241 active?
Yes, as of the latest NPPES snapshot, NPI 1356412241 is active (record last updated 2020-10-21).
How do I verify Johnson Chiu's NPI record?
Cross-check NPI 1356412241 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 2020-10-21.