Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

To Samuel Chan, PHARM.D.

Pharmacist in Seattle, WA · enumerated 2011.

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

National Provider Identifier

1841587383

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Registry record

Entity type Individual (Type 1)

Name To Samuel Chan

Credential PHARM.D.

Sex Male

Practice address 611 Maynard Ave S, Seattle, WA, 98104

Phone (206) 621-8883

Fax (206) 621-9328

Enumeration date Jul 5, 2011

Last updated in NPPES Jul 5, 2011

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License PH22188 (WA) Primary

PHARMD · Doctor of Pharmacy: A licensed pharmacist with a professional doctorate in pharmacy. About the PHARMD 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

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 To Chan?

To Chan is registered in NPPES with the primary taxonomy of Pharmacist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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Chan, Patel & Luo LLP Pharmacist · Seattle, WA NPI 1861566309 Chan Patel and Lluo LLP Mail Order Pharmacy · Seattle, WA NPI 1972792331 Brandon Liu Nurse Practitioner · Seattle, WA NPI 1639339708 May Luo Pharmacist · Seattle, WA NPI 1528332061 Yu Han Internal Medicine Physician · Seattle, WA NPI 1295122356 Bao Ju Chen Pharmacist · Seattle, WA NPI 1619523321 Thrive Home Health LLC Clinic/Center · Seattle, WA NPI 1689414799 Kindr, Pllc Internal Medicine Physician · Seattle, WA NPI 1265231476

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-07-05.