ALBERT YI TSIEN M.D.
NPI 1801953559
Allergy & Immunology in Olympia, WA

Q: What is Albert Tsien's NPI number?

The NPI number for Albert Tsien is 1801953559. It was assigned to this individual provider in the NPPES registry on January 2, 2007.

Q: What is Albert Tsien's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Q: When was this NPI record last updated?

The NPPES record for Albert Tsien was last updated on October 31, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since January 02, 2007PECOS EnrolledAccepts Medicare Assignment

700 LILLY RD NE, OLYMPIA, WA 98506(360) 923-7000 Get Directions Write a Review

NPPES record last updated: October 31, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Albert Yi Tsien M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ALBERT YI TSIEN M.D. (NPI 1801953559) is an individual allergy & immunology provider in Olympia, Washington, licensed in Washington (MD00044027) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS and is a graduate of Illinois Medical College (1989).

NPPES Registry Identity

NPI1801953559

Entity TypeIndividualMale

Primary Taxonomy207K00000X

Provider Legal NameALBERT YI TSIENCredential: M.D.

Location Address700 LILLY RD NEOlympia, WA 98506-5115

Mailing Address700 Lilly Rd NeOlympia, WA 98506-5115 · (360) 923-7000

Phone(360) 923-7000

Sole ProprietorNo

Medical School CMSIllinois Medical CollegeGraduated 1989

Enumeration DateJanuary 2, 2007

Last NPPES UpdateOctober 31, 2025

NPPES CertifiedOctober 31, 2025

✔ NPI 1801953559 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians

Taxonomy Code207K00000X

License✔ Licensed in WA · MD00044027

Definition

An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.

700 LILLY RD NE, Olympia, WA 98506

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Other Identifiers 1

Medicaid8410847WA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Albert Yi Tsien M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1052366705

PECOS Enrollment IDI20050316000302

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

AMIHAN A FERRER M.D.

Family Medicine