NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Mack Medical Management Corporation

Vascular Surgery Physician in Visalia, CA · enumerated 2023 · authorized official Lamar Mack, Ceo.

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

National Provider Identifier

1417654013

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Mack Medical Management Corporation
Practice address 820 S Akers St Ste 120, Visalia, CA, 93277
Phone (559) 365-7147
Fax (559) 625-6004
Enumeration date Feb 14, 2023
Last updated in NPPES Feb 14, 2023

Taxonomy & classification

2086S0129X Vascular Surgery Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Lamar Mack
Title Ceo
Phone (559) 624-6520

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 type of organization is Mack Medical Management Corporation?
Mack Medical Management Corporation is registered in NPPES as a Vascular Surgery Physician (its primary provider taxonomy).
What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-02-14.