NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gretchen Berrios-Siervo, PSY.D.

Clinical Neuropsychologist in Aurora, CO · enumerated 2012.

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

National Provider Identifier

1477809770

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Gretchen Berrios-Siervo
Credential PSY.D.
Sex Female
Practice address 13123 E 16th Ave, Box155, Aurora, CO, 80045
Enumeration date Jul 24, 2012
Last updated in NPPES Jul 24, 2012

Taxonomy & licenses

103G00000X Clinical Neuropsychologist Behavioral Health & Social Service Providers Primary
PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice. About the PSYD credential

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 specialty is Gretchen Berrios-Siervo?
Gretchen Berrios-Siervo is registered in NPPES with the primary taxonomy of Clinical Neuropsychologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-07-24.