Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mary Danielsen, RN
Registered Nurse in Anacortes, WA · enumerated 2016.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1427508969
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Registry record
Entity type Individual (Type 1)
Name Mary Danielsen
Credential RN
Sex Female
Practice address 3401 F Ave, Anacortes, WA, 98221
Phone (360) 724-8424
Enumeration date Oct 7, 2016
Last updated in NPPES Oct 7, 2016
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
Where does Mary Danielsen practice?
The practice location on file with NPPES is in Anacortes, WA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Mary Danielsen?
The National Provider Identifier (NPI) for Mary Danielsen is 1427508969, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-10-07.