Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Sarah Tien, D.M.D.
Dentist in Seatac, WA · enumerated 2015.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1639547946
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Registry record
Entity type Individual (Type 1)
Name Sarah Tien
Credential D.M.D.
Sex Female
Practice address 4040 S 188th St Ste 201, Seatac, WA, 98188
Phone (206) 439-2149
Enumeration date Sep 3, 2015
Last updated in NPPES Feb 18, 2025
Taxonomy & licenses
DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees.
About the DMD 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.
Frequently asked questions
How do I verify Sarah Tien's NPI record?
Cross-check NPI 1639547946 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1639547946 active?
Yes, as of the latest NPPES snapshot, NPI 1639547946 is active (record last updated 2025-02-18).
Other providers at this practice address
Browse all → Sara Fleming Family Medicine Physician · Seatac, WA NPI 1245224609 Liza Perpuse Family Medicine Physician · Seatac, WA NPI 1265401145 Sabrina Hart Family Medicine Physician · Seatac, WA NPI 1285795823 Ai-Lien Sperry Dentist · Seatac, WA NPI 1487799334 Erin Grindle Physician Assistant · Seatac, WA NPI 1609069004 Molly Anderson Family Medicine Physician · Seatac, WA NPI 1275776080 Navia Nguyen Dentist · Seatac, WA NPI 1982955878 Anh Tran Acupuncturist · Seatac, WA NPI 1992044127
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-02-18.