NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Lisa Ardath Castro, ARNP

Nurse Practitioner in Greeley, CO · enumerated 2010 · practices at Colorado Pain Experts, LLC.

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

National Provider Identifier

1245542323

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Registry record

Entity type Individual (Type 1)
Name Mrs. Lisa Ardath Castro
Credential ARNP
Sex Female
Practice address 7251 W 20th St Unit K, Greeley, CO, 80634
Phone (970) 378-1414
Fax (970) 378-1515
Enumeration date Jul 6, 2010
Last updated in NPPES Jan 21, 2026

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 31391 (TN) Secondary
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 905746 (MS) Secondary
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 0105328 (CO) 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.

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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 Lisa Castro?
Lisa Castro is registered in NPPES with the primary taxonomy of Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-01-21.