Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Howard Chiou, M.D., PH.D.

Public Health & General Preventive Medicine Physician in Los Angeles, CA · enumerated 2017.

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

National Provider Identifier

1558893404

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Registry record

Entity type Individual (Type 1)

Name Dr. Howard Chiou

Credential M.D., PH.D.

Sex Male

Practice address 241 N Figueroa St, Los Angeles, CA, 90012

Phone (213) 974-1234

Enumeration date Mar 30, 2017

Last updated in NPPES Dec 29, 2024

Taxonomy & licenses

2083P0901X Public Health & General Preventive Medicine Physician Allopathic & Osteopathic Physicians · License A156683 (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

What specialty is Howard Chiou?

Howard Chiou is registered in NPPES with the primary taxonomy of Public Health & General Preventive Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-12-29.