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

Mark Ronco

Contractor in Lakewood, CO · enumerated 2021.

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

National Provider Identifier

1699432179

Verified

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Registry record

Entity type Individual (Type 1)

Name Mark Ronco

Sex Male

Practice address Lakewood, CO, 80226

Phone (720) 577-4040

Enumeration date Nov 19, 2021

Last updated in NPPES Jan 3, 2022

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

Taxonomy & licenses

171W00000X Contractor Other Service Providers 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.

Read the full guide → Validate an NPI →

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 Mark Ronco?

Mark Ronco is registered in NPPES with the primary taxonomy of Contractor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-01-03.