Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Matthew K Littleton
Physician Assistant in Florence, MT · enumerated 2022.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1801521661
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Registry record
Entity type Individual (Type 1)
Name Matthew K Littleton
Sex Male
Practice address 5549 Us Highway 93 N, Florence, MT, 59833
Phone (406) 273-4923
Fax (406) 329-4174
Enumeration date Jul 17, 2022
Last updated in NPPES Dec 9, 2025
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA2023-0315 (NM) Secondary
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License MED-PAC-LIC-147324 (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
Is NPI 1801521661 active?
Yes, as of the latest NPPES snapshot, NPI 1801521661 is active (record last updated 2025-12-09).
How do I verify Matthew Littleton's NPI record?
Cross-check NPI 1801521661 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all → Mariah Bonner Family Medicine Physician · Florence, MT NPI 1962825356 Terrence Austin Physician Assistant · Florence, MT NPI 1265825434 James Jennings Family Medicine Physician · Florence, MT NPI 1003312604 Sarah Mcnair Clinical Social Worker · Florence, MT NPI 1326508342 Courtney Kerr Family Nurse Practitioner · Florence, MT NPI 1801571674
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-12-09.