Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Tish Ann Marie Parker, FNP-C

Nurse Practitioner in Billings, MT · enumerated 2012.

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

National Provider Identifier

1023371929

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Registry record

Entity type Individual (Type 1)

Name Tish Ann Marie Parker

Credential FNP-C

Sex Female

Practice address 602 Henry Chapple St, Billings, MT, 59106

Phone (406) 901-2300

Enumeration date Jun 17, 2012

Last updated in NPPES Jun 21, 2023

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 24873 (MT) Secondary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 100354 (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.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Tish Parker?

Tish Parker is registered in NPPES with the primary taxonomy of Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-06-21.