Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Marilyn K Oliver
Counselor in Gresham, OR · enumerated 2011.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1235425893
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Marilyn K Oliver
Sex Female
Practice address 360 Sw 6th St, Gresham, OR, 97080
Phone (503) 726-3806
Enumeration date Jun 22, 2011
Last updated in NPPES Jun 22, 2011
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
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Marilyn Oliver?
Marilyn Oliver is registered in NPPES with the primary taxonomy of Counselor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Tina Webb Mental Health Counselor · Gresham, OR NPI 1417240466 Leah Wilkinson Mental Health Counselor · Gresham, OR NPI 1528351558 Amber Lewis Mental Health Counselor · Gresham, OR NPI 1356634380 Luke-Dorf, Inc. Mental Illness Community Based Residential Treatment Facility · Gresham, OR NPI 1043503006 Lukedorf Mental Illness Community Based Residential Treatment Facility · Gresham, OR NPI 1710271861 Lovemore Hakuna Counselor · Gresham, OR NPI 1255626982 Vivian Krieger Mental Health Counselor · Gresham, OR NPI 1295020824 Evan Wallace Mental Health Counselor · Gresham, OR NPI 1073859351
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-06-22.