Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Diane Fischer Crna PC

Certified Registered Nurse Anesthetist in Billings, MT · enumerated 2006 · authorized official Diane Fischer, President.

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

National Provider Identifier

1588754923

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Registry record

Entity type Organization (Type 2)

Legal business name Diane Fischer Crna PC

Practice address 940 N 30th St, Billings, MT, 59101

Phone (406) 248-7186

Enumeration date Oct 14, 2006

Last updated in NPPES Jan 10, 2013

Taxonomy & classification

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers Primary

Authorized official

Name Diane Fischer

Title President

Phone (406) 245-2817

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.

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Frequently asked questions

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2013-01-10. Verify at npiregistry.cms.hhs.gov.

Where is Diane Fischer Crna PC located?

The practice location on file with NPPES is in Billings, MT.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-01-10.