Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Ivy Donath

Q: What is the NPI number for Ivy Donath?

The National Provider Identifier (NPI) for Ivy Donath is 1821548579, a Type 1 (individual) record in the CMS NPPES registry.

Contractor in Boulder, MT · enumerated 2016.

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

National Provider Identifier

1821548579

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Registry record

Entity type Individual (Type 1)

Name Ivy Donath

Sex Female

Practice address Boulder, MT, 59632

Phone (406) 830-1332

Enumeration date Oct 6, 2016

Last updated in NPPES Sep 13, 2025

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

253Z00000X In Home Supportive Care Agency Agencies Secondary

1744R1102X Research Study Specialist Other Service Providers Secondary

385H00000X Respite Care Respite Care Facility Secondary

374U00000X Home Health Aide Nursing Service Related Providers Secondary

1744G0900X Graphics Designer Other Service Providers Secondary

251S00000X Community/Behavioral Health Agency Agencies Secondary

172A00000X Driver Other Service Providers Secondary

174400000X Specialist Other Service Providers Secondary

347C00000X Private Vehicle Transportation Services Secondary

376K00000X Nurse's Aide Nursing Service Related Providers Secondary

171W00000X Contractor Other Service Providers 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 Ivy Donath practice?

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

What is the NPI number for Ivy Donath?

The National Provider Identifier (NPI) for Ivy Donath is 1821548579, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-13.