NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Alice Hyun-Kyung Tan, MD

Internal Medicine Physician in Issaquah, WA · enumerated 2022.

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

National Provider Identifier

1164144549

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Registry record

Entity type Individual (Type 1)
Name Alice Hyun-Kyung Tan
Credential MD
Sex Female
Practice address Issaquah, WA, 98027
Phone (425) 270-0648
Enumeration date Sep 13, 2022
Last updated in NPPES Sep 13, 2022

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 61094526 (WA) 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
61094526 Other WA WASHINGTON STATE 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 Alice Tan practice?
The practice location on file with NPPES is in Issaquah, WA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Alice Tan?
The National Provider Identifier (NPI) for Alice Tan is 1164144549, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-09-13.