Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Diane Marie Gahan, RPH
Pharmacist in Portland, OR · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1427274588
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Registry record
Entity type Individual (Type 1)
Name Diane Marie Gahan
Credential RPH
Sex Female
Practice address 315 Sw 5th Ave, Portland, OR, 97204
Phone (503) 416-5963
Enumeration date Apr 17, 2007
Last updated in NPPES Apr 12, 2021
Taxonomy & licenses
RPH · Registered Pharmacist: A licensed pharmacist registered with a state board of pharmacy.
About the RPH 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
What is the NPI number for Diane Gahan?
The National Provider Identifier (NPI) for Diane Gahan is 1427274588, a Type 1 (individual) record in the CMS NPPES registry.
Where does Diane Gahan practice?
The practice location on file with NPPES is in Portland, OR. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → John Bischof Psychiatry Physician · Portland, OR NPI 1134203631 Katherine Hunt Professional Counselor · Portland, OR NPI 1003962721 Health Plan of Careoregon Health Maintenance Organization · Portland, OR NPI 1669500864 Careoregon Health Maintenance Organization · Portland, OR NPI 1063540367 Quinne Salameh Mental Health Counselor · Portland, OR NPI 1073727699 Logan Gamelier Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist · Portland, OR NPI 1104216910 Jessica Dizon Pharmacist · Portland, OR NPI 1275919938 Kofi Asante Pharmacist · Portland, OR NPI 1073989968
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-04-12.