Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Naomi Routen
Physician Assistant in Billings, MT · enumerated 2015.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1902293822
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Registry record
Entity type Individual (Type 1)
Name Mrs. Naomi Routen
Sex Female
Practice address 820 Division St, Billings, MT, 59101
Phone (406) 294-5225
Enumeration date Apr 17, 2015
Last updated in NPPES Mar 12, 2017
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 42910 (MT) 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
What is the NPI number for Naomi Routen?
The National Provider Identifier (NPI) for Naomi Routen is 1902293822, a Type 1 (individual) record in the CMS NPPES registry.
Where does Naomi Routen practice?
The practice location on file with NPPES is in Billings, MT. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-03-12.