Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Nathan Alfred Sickler, DMD
Dentist in Glendive, MT · enumerated 2024.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1558116137
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Registry record
Entity type Individual (Type 1)
Name Dr. Nathan Alfred Sickler
Credential DMD
Sex Male
Practice address 116 N Meade Ave, Glendive, MT, 59330
Phone (406) 377-8265
Enumeration date Apr 18, 2024
Last updated in NPPES Apr 18, 2024
Taxonomy & licenses
DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees.
About the DMD 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
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 Nathan Sickler?
Nathan Sickler is registered in NPPES with the primary taxonomy of Dentist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → George R. Carson D.D.S. P.C. Pediatric Dentistry · Glendive, MT NPI 1124186358 George Carson Pediatric Dentistry · Glendive, MT NPI 1134377732 Coburn Dental Office LLC Dental Clinic/Center · Glendive, MT NPI 1770831539 Matthew Calkins Dentist · Glendive, MT NPI 1598177115 Calkins Dental Office, LLC Dental Clinic/Center · Glendive, MT NPI 1972030708 Patrick Lahiff Dentist · Glendive, MT NPI 1144895848
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-04-18.