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Catherine Mai-Yu Chen, MD

Ophthalmology Physician in Allen, TX · enumerated 2006.

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

National Provider Identifier

1790750461

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Registry record

Entity type Individual (Type 1)
Name Catherine Mai-Yu Chen
Credential MD
Sex Female
Practice address 1105 Central Expy N, Ste 240, Allen, TX, 75013
Phone (972) 908-2555
Enumeration date Feb 17, 2006
Last updated in NPPES Mar 9, 2017

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 01050542A (IN) Primary
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
200225590A Medicaid IN —
200235690 Medicaid IN —

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 Catherine Chen?
Catherine Chen is registered in NPPES with the primary taxonomy of Ophthalmology 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 2017-03-09.