Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Ernest Castro MD Pllc

Primary Care Clinic/Center in Arvada, CO · enumerated 2021 · authorized official Ernest Castro, Physician/Owner.

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

National Provider Identifier

1801551296

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Registry record

Entity type Organization (Type 2)

Legal business name Ernest Castro MD Pllc

Practice address 6870 W 52nd Ave Ste 212, Arvada, CO, 80002

Phone (720) 868-3111

Fax (303) 220-4941

Enumeration date Nov 1, 2021

Last updated in NPPES Dec 13, 2021

Taxonomy & classification

261QP2300X Primary Care Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Ernest Castro

Title Physician/Owner

Phone (720) 868-3111

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

Where is Ernest Castro MD Pllc located?

The practice location on file with NPPES is in Arvada, CO.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2021-12-13. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-13.