Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Ashley Koivisto, RN
Registered Nurse in Tigard, OR · enumerated 2026.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1558299677
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Registry record
Entity type Individual (Type 1)
Name Mrs. Ashley Koivisto
Credential RN
Sex Female
Practice address 7145 Sw Varns St Ste 101, Tigard, OR, 97223
Phone (503) 888-8579
Enumeration date May 11, 2026
Last updated in NPPES May 11, 2026
Taxonomy & licenses
RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam.
About the RN credential
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 Ashley Koivisto?
Ashley Koivisto is registered in NPPES with the primary taxonomy of Registered Nurse. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Marisa Arana Psychiatric/Mental Health Nurse Practitioner · Portland, OR NPI 1689160855 Hauskaa Psychiatry LLC Psychiatric/Mental Health Nurse Practitioner · Tigard, OR NPI 1295582575 Directions Counseling Services Mental Health Clinic/Center (Including Community Mental Health Center) · Tigard, OR NPI 1144054065
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-05-11.