Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Greta Johnson, RN
Registered Nurse in Mankato, MN · enumerated 2013.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1720328909
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Registry record
Entity type Individual (Type 1)
Name Greta Johnson
Credential RN
Sex Female
Practice address 227 E Main St Ste 200, Mankato, MN, 56001
Phone (507) 345-8591
Fax (507) 345-5023
Enumeration date Feb 25, 2013
Last updated in NPPES Feb 25, 2013
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 Greta Johnson practice?
The practice location on file with NPPES is in Mankato, MN. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Greta Johnson?
The National Provider Identifier (NPI) for Greta Johnson is 1720328909, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-02-25.