Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Katherine Winlin Tsai, RPH

Pharmacist in League City, TX · enumerated 2016 · practices at Rcmh, LLC.

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

National Provider Identifier

1528427531

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Registry record

Entity type Individual (Type 1)

Name Katherine Winlin Tsai

Credential RPH

Sex Female

Practice address 2955 Gulf Fwy S, League City, TX, 77573

Phone (281) 337-5210

Enumeration date Feb 18, 2016

Last updated in NPPES Sep 26, 2026

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 51974 (TX) Primary

RPH · Registered Pharmacist: A licensed pharmacist registered with a state board of pharmacy. About the RPH 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

Where does Katherine Tsai practice?

The practice location on file with NPPES is in League City, TX. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Katherine Tsai?

The National Provider Identifier (NPI) for Katherine Tsai is 1528427531, 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 2026-09-26.