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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Eric Andreu Semsak, ND

Naturopath in Issaquah, WA · enumerated 2009 · practices at Mirsepasi and Associates, Inc.

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

National Provider Identifier

1083940050

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Registry record

Entity type Individual (Type 1)
Name Dr. Eric Andreu Semsak
Credential ND
Sex Male
Practice address 85 Nw Alder Pl, Suite C, Issaquah, WA, 98027
Phone (425) 391-1080
Enumeration date Oct 27, 2009
Last updated in NPPES Nov 16, 2009

Taxonomy & licenses

175F00000X Naturopath Other Service Providers · License NT60122323 (WA) Primary

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.

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Frequently asked questions

What specialty is Eric Semsak?
Eric Semsak is registered in NPPES with the primary taxonomy of Naturopath. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-11-16.