Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Denny J Mack, D.O.

Q: What is the NPI number for Denny Mack?

The National Provider Identifier (NPI) for Denny Mack is 1154569960, a Type 1 (individual) record in the CMS NPPES registry.

Physical Medicine & Rehabilitation Physician in North Las Vegas, NV · enumerated 2009.

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

National Provider Identifier

1154569960

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Registry record

Entity type Individual (Type 1)

Name Dr. Denny J Mack

Credential D.O.

Sex Male

Practice address 6900 N Pecos Rd, North Las Vegas, NV, 89086

Phone (801) 703-3133

Enumeration date Feb 2, 2009

Last updated in NPPES Jul 5, 2023

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 7130076-1202 (UT) Secondary

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

208100000X Physical Medicine & Rehabilitation Physician Allopathic & Osteopathic Physicians · License S7093 (TX) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

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

What is the NPI number for Denny Mack?

The National Provider Identifier (NPI) for Denny Mack is 1154569960, a Type 1 (individual) record in the CMS NPPES registry.

Where does Denny Mack practice?

The practice location on file with NPPES is in North Las Vegas, NV. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-07-05.