Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Eric Changchien, MD

Surgery Physician in Riverside, CA · enumerated 2008.

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

National Provider Identifier

1710137401

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Registry record

Entity type Individual (Type 1)

Name Eric Changchien

Credential MD

Sex Male

Practice address 3660 Park Sierra Dr, Suite 105, Riverside, CA, 92505

Phone (951) 278-8870

Fax (951) 278-8913

Enumeration date Sep 30, 2008

Last updated in NPPES Nov 29, 2021

Taxonomy & licenses

208C00000X Colon & Rectal Surgery Physician Allopathic & Osteopathic Physicians · License 8505128-1205 (UT) Secondary

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 108490 (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.

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Frequently asked questions

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.

What specialty is Eric Changchien?

Eric Changchien is registered in NPPES with the primary taxonomy of Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-11-29.