Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Sierra Violet Cortes, ND
Naturopath in Billings, MT · enumerated 2022.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1326755471
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Registry record
Entity type Individual (Type 1)
Name Dr. Sierra Violet Cortes
Credential ND
Sex Female
Practice address 720 N 30th St, Billings, MT, 59101
Phone (406) 259-5096
Fax (406) 545-0044
Enumeration date Oct 28, 2022
Last updated in NPPES Jan 26, 2024
Taxonomy & licenses
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 Sierra Cortes practice?
The practice location on file with NPPES is in Billings, MT. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Sierra Cortes?
The National Provider Identifier (NPI) for Sierra Cortes is 1326755471, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Margaret Beeson Naturopath · Billings, MT NPI 1669579231 Yellowstone Naturopathic Clinic P C Naturopath · Billings, MT NPI 1851462915 Tanis Kleckler Naturopath · Billings, MT NPI 1376697821 Patricia Holl Chiropractor · Billings, MT NPI 1902946676 Sarah Stewart Family Medicine Physician · Billings, MT NPI 1932372943 Jeffery Moore Naturopath · Billings, MT NPI 1770759557 Jessica Powell Riley Massage Therapist · Billings, MT NPI 1821242314 Christine Stubbe Naturopath · Billings, MT NPI 1396073938
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-01-26.