Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Colorado Dermatology Group, Pllc

Dermatology Physician in Fort Collins, CO · enumerated 2016 · authorized official Joseph Lillis, Owner.

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

National Provider Identifier

1144776238

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Registry record

Entity type Organization (Type 2)

Legal business name Colorado Dermatology Group, Pllc

Practice address 3609 S Timberline Rd Unit A, Fort Collins, CO, 80525

Phone (888) 884-6776

Fax (970) 482-9948

Enumeration date Aug 29, 2016

Last updated in NPPES Oct 21, 2020

Taxonomy & classification

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License DR.0047867 (CO) Primary

Authorized official

Name Joseph Lillis

Title Owner

Phone (888) 884-6776

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 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.

What type of organization is Colorado Dermatology Group, Pllc?

Colorado Dermatology Group, Pllc is registered in NPPES as a Dermatology Physician (its primary provider taxonomy).

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Joseph Lillis Dermatology Physician · Fort Collins, CO NPI 1225213432

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-10-21.