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Marc Iseri MD PC

Specialist in Ontario, OR · enumerated 2006 · authorized official Marc Iseri, Owner.

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

National Provider Identifier

1740393289

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Registry record

Entity type Organization (Type 2)
Legal business name Marc Iseri MD PC
Other name <Unavail>
Practice address 1077 Sw 3rd Ave, Ontario, OR, 97914
Phone (541) 889-7205
Fax (541) 889-9204
Enumeration date Aug 17, 2006
Last updated in NPPES Aug 22, 2020

Taxonomy & classification

174400000X Specialist Other Service Providers · License 10382 (OR) Primary

Authorized official

Name Marc Iseri
Title Owner
Phone (541) 889-7205

Other identifiers

Identifier Type State Issuer
1417909599 Other - NPI, DR. MARC ISERI
093682 Medicaid OR -

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 type of organization is Marc Iseri MD PC?
Marc Iseri MD PC is registered in NPPES as a Specialist (its primary provider taxonomy).
What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.