Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary Muggli Weimer, NP-C

Q: What is the NPI number for Mary Weimer?

The National Provider Identifier (NPI) for Mary Weimer is 1811466741, a Type 1 (individual) record in the CMS NPPES registry.

Acute Care Nurse Practitioner in Miles City, MT · enumerated 2018.

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

National Provider Identifier

1811466741

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Mary Muggli Weimer

Credential NP-C

Sex Female

Practice address 2600 Wilson St, Miles City, MT, 59301

Phone (406) 233-2600

Enumeration date Nov 20, 2018

Last updated in NPPES Nov 20, 2018

Taxonomy & licenses

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 127060 (MT) Secondary

363LA2100X Acute Care Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 127060 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Mary Weimer practice?

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

What is the NPI number for Mary Weimer?

The National Provider Identifier (NPI) for Mary Weimer is 1811466741, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-11-20.