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Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum Organization subpart

Holy Rosary Medical Center

Internal Medicine Physician in Ontario, OR · enumerated 2006 · authorized official Tammy Graham, Patient Account Rep.

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

National Provider Identifier

1922066786

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Registry record

Entity type Organization (Type 2)
Legal business name Holy Rosary Medical Center
Other name <Unavail>
Parent organization Holy Rosary Medical Center
Practice address 351 Sw 9th St, Ontario, OR, 97914
Phone (541) 881-7000
Enumeration date May 2, 2006
Last updated in NPPES Oct 22, 2007

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Tammy Graham
Title Patient Account Rep
Phone (541) 881-7373

Other identifiers

Identifier Type State Issuer
C45116 Other OR RR MEDICARE
134311 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 is the NPI number for Holy Rosary Medical Center?
The NPI for Holy Rosary Medical Center is 1922066786, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Holy Rosary Medical Center?
NPPES lists Tammy Graham (Patient Account Rep) as the authorized official for this organization.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-10-22.