Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Optumcare Colorado Medical Group LLC

Internal Medicine Physician in Golden, CO · enumerated 2024 · authorized official Emily Castillo, Regional Medical Staff Manager.

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

National Provider Identifier

1952168502

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Registry record

Entity type Organization (Type 2)

Legal business name Optumcare Colorado Medical Group LLC

Practice address 350 Indiana St Ste 250, Golden, CO, 80401

Phone (720) 898-9427

Fax (303) 302-0808

Enumeration date Feb 29, 2024

Last updated in NPPES Feb 29, 2024

Taxonomy & classification

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Emily Castillo

Title Regional Medical Staff Manager

Phone (702) 579-3253

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 Optumcare Colorado Medical Group LLC?

Optumcare Colorado Medical Group LLC is registered in NPPES as a Internal Medicine Physician (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-02-29.