Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Lauren K Willis, M.D.

Pediatric Gastroenterology Physician in Missoula, MT · enumerated 2006 · practices at Western Montana Clinic PC.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1457393357

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Registry record

Entity type Individual (Type 1)

Name Lauren K Willis

Credential M.D.

Sex Female

Practice address 2835 Fort Missoula Rd Bldg 3, Missoula, MT, 59804

Phone (406) 721-5600

Fax (406) 721-3907

Enumeration date Jun 12, 2006

Last updated in NPPES Jun 28, 2021

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 0101222038 (VA) Secondary

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 55979 (MT) Secondary

2080P0206X Pediatric Gastroenterology Physician Allopathic & Osteopathic Physicians · License 55979 (MT) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
690603L	Medicaid	NC	-
005830427	Medicaid	VA	-

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Lauren Willis practice?

The practice location on file with NPPES is in Missoula, MT. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Lauren Willis?

The National Provider Identifier (NPI) for Lauren Willis is 1457393357, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Kristen Townley MOHS-Micrographic Surgery Physician · Missoula, MT NPI 1891749446 Natasha Mckee Medical Physician Assistant · Missoula, MT NPI 1144262734 Jennifer Hall Pediatrics Physician · Missoula, MT NPI 1245273622 Charla Fontaine Physician Assistant · Missoula, MT NPI 1376621201 Aubrey Remmers Family Medicine Physician · Missoula, MT NPI 1033285861 Shannon Foster Dermatology Physician · Missoula, MT NPI 1356549406 Western Montana Clinic PC Multi-Specialty Clinic/Center · Missoula, MT NPI 1063689263 Andrew Tegeder Dermatology Physician · Missoula, MT NPI 1376835769

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-06-28.