Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Eastside Internal Medicine Pllc

Q: What is the NPI number for Eastside Internal Medicine Pllc?

The NPI for Eastside Internal Medicine Pllc is 1023165594, a Type 2 (organization) record in the CMS NPPES registry.

Medical Specialty Clinic/Center in Kirkland, WA · enumerated 2007 · authorized official Douglas Portelance, MD President.

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

National Provider Identifier

1023165594

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name Eastside Internal Medicine Pllc

Practice address 12333 Ne 120th Ln. Ste 310, Kirkland, WA, 98034

Phone (425) 899-6700

Fax (425) 899-6701

Enumeration date Jan 5, 2007

Last updated in NPPES Dec 18, 2007

Taxonomy & classification

261QM2500X Medical Specialty Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Douglas Portelance

Title MD President

Phone (425) 899-6700

Other identifiers

Identifier	Type	State	Issuer
145684	Other	WA	LABOR & INDUSTRIES

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

What is the NPI number for Eastside Internal Medicine Pllc?

The NPI for Eastside Internal Medicine Pllc is 1023165594, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Eastside Internal Medicine Pllc?

NPPES lists Douglas Portelance (MD President) as the authorized official for this organization.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-12-18.