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Peggy Chien, DO

Pediatrics Physician in Holyoke, MA · enumerated 2006.

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

National Provider Identifier

1861416489

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Registry record

Entity type Individual (Type 1)
Name Peggy Chien
Credential DO
Sex Female
Practice address 150 Lower Westfield Rd, Ste 1, Holyoke, MA, 01040
Phone (413) 536-2393
Fax (413) 536-1087
Enumeration date Jul 27, 2006
Last updated in NPPES Sep 1, 2015

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 233965 (MA) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO 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

Where does Peggy Chien practice?
The practice location on file with NPPES is in Holyoke, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Peggy Chien?
The National Provider Identifier (NPI) for Peggy Chien is 1861416489, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-09-01.