Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Holly M Armstrong Rivers
Peer Specialist in Madras, OR · enumerated 2021.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1093398489
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Registry record
Entity type Individual (Type 1)
Name Holly M Armstrong Rivers
Sex Female
Practice address 125 Sw C St, Madras, OR, 97741
Phone (541) 306-4566
Fax (541) 512-7090
Enumeration date May 3, 2021
Last updated in NPPES May 3, 2021
Taxonomy & licenses
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.
Frequently asked questions
Where does Holly Armstrong Rivers practice?
The practice location on file with NPPES is in Madras, OR. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Holly Armstrong Rivers?
The National Provider Identifier (NPI) for Holly Armstrong Rivers is 1093398489, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → William Herz Psychiatry Physician · Madras, OR NPI 1215008354 Kathy Hurley Mental Health Counselor · Madras, OR NPI 1063617314 Marlys Alger Mental Health Counselor · Madras, OR NPI 1205127701 Shelly Grantham Mental Health Counselor · Madras, OR NPI 1639460157 Susan Speck Mental Health Counselor · Madras, OR NPI 1538450051 Annette Chastain Mental Health Counselor · Madras, OR NPI 1295026797 Richard Synowski Mental Health Counselor · Madras, OR NPI 1518258037 Kaycee Weeks Mental Health Counselor · Madras, OR NPI 1245521764
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-05-03.