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

Dr. Riley Mackenzie Black, DNP

Nurse Practitioner in Libby, MT · enumerated 2023.

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

National Provider Identifier

1538875935

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Registry record

Entity type Individual (Type 1)

Name Dr. Riley Mackenzie Black

Credential DNP

Sex Female

Practice address Libby, MT, 59923

Phone (406) 283-7440

Fax (406) 293-4780

Enumeration date Jan 30, 2023

Last updated in NPPES Sep 13, 2024

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

Taxonomy & licenses

163WP0808X Psychiatric/Mental Health Registered Nurse Nursing Service Providers · License LIC103602 (MT) Secondary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License NUR-APRN-LIC-240991 (MT) Primary

DNP · Doctor of Nursing Practice: A clinical doctorate for advanced practice nurses. About the DNP credential

Other identifiers

Identifier	Type	State	Issuer
0801419904108	Other	MT	DRIVERS LICENSE

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 Riley Black?

Riley Black 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.

Other providers at this practice address

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Brian Bell Obstetrics & Gynecology Physician · Libby, MT NPI 1619087822 Jesse Brown Physician Assistant · Libby, MT NPI 1467515635 St John'S Lutheran Hospital Physician'S Services Critical Access Hospital Clinic/Center · Libby, MT NPI 1932253093 Aleksander Robles Obstetrics & Gynecology Physician · Libby, MT NPI 1548554199 Kalispell Regional Medical Center Inc Obstetrics & Gynecology Physician · Libby, MT NPI 1851782940

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-09-13.