Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Kelsey J. Mason, FNP-BC
Nurse Practitioner in Plymouth, MN · enumerated 2013.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1134551641
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Registry record
Entity type Individual (Type 1)
Name Kelsey J. Mason
Credential FNP-BC
Sex Female
Practice address 2 Carlson Pkwy N Ste 240, Plymouth, MN, 55447
Phone (618) 961-1950
Fax (618) 961-1968
Enumeration date Aug 7, 2013
Last updated in NPPES Mar 1, 2024
Taxonomy & licenses
207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 209010593 (IL) Secondary
363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 2020026942 (MO) Secondary
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209010593 (IL) Primary
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 Kelsey Mason?
Kelsey Mason is registered in NPPES with the primary taxonomy of Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-03-01.