A fast, free, no-login way to look up any U.S. healthcare provider in the federal NPPES registry.

Lookups

NPI Lookup
NPI Registry
By Specialty
By State

Resources

Guides
For Providers / API
Data Sources
About

Legal

Privacy
Terms
Correct a record

Data is sourced from the public NPPES (National Plan and Provider Enumeration System) registry published by CMS. NPI Central is not affiliated with, or endorsed by, CMSor any healthcare provider. Information is provided “as is” for general reference and is not medical advice.

FCRA notice: NPI Central is not a consumer reporting agency. This information may not be used to determine eligibility for employment, credentialing, insurance, or any other purpose covered by the Fair Credit Reporting Act.

© 2026 NPI Central. All rights reserved.

Allergy Clinic LLC — NPI 1679790604, Portland, OR | NPI Central

Home/
NPI Lookup/
OR/
NPI 1679790604

OrganizationActive

Allergy Clinic LLC

NPI 1679790604 · Allergy Physician · Portland, OR

Provider details

NPI number: 1679790604
Entity type: Organization
Primary specialty: Allergy PhysicianAllopathic & Osteopathic Physicians
Authorized official: Mark O'Hollaren, Owner
License: 13450 (OR)

Practice location

511 Sw 10th Ave

Suite 1301

Portland, OR 97205-2732

Phone: (503) 228-0155

Fax: (503) 226-8342

More OR providers

Mailing address

511 Sw 10th Ave

Portland, OR 97205-2732

Registry dates

Enumerated: 2007-04-19
Last updated: 2020-08-22

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.