NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark D Livingston, BA

Peer Specialist in Las Vegas, NM · enumerated 2019.

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

National Provider Identifier

1023674702

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mark D Livingston
Credential BA
Sex Male
Practice address 2301 7th St Ste A, Las Vegas, NM, 87701
Enumeration date May 17, 2019
Last updated in NPPES Jun 11, 2019

Taxonomy & licenses

175T00000X Peer Specialist Other Service Providers · License 276 (NM) Primary

Other identifiers

Identifier Type State Issuer
83774556 Medicaid NM -

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 Mark Livingston?
The National Provider Identifier (NPI) for Mark Livingston is 1023674702, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mark Livingston practice?
The practice location on file with NPPES is in Las Vegas, NM. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-06-11.