GRETCHEN BERRIOS-SIERVO PSY.D.
NPI 1477809770
Clinical Neuropsychologist in Aurora, CO

Q: What is Gretchen Berrios-siervo's NPI number?

The NPI number for Gretchen Berrios-siervo is 1477809770. It was assigned to this individual provider in the NPPES registry on July 24, 2012.

Q: What is Gretchen Berrios-siervo's specialty?

The primary specialty registered for this NPI is Clinical Neuropsychologist with taxonomy code 103G00000X.

Active since July 24, 2012PECOS Enrolled

13123 E 16TH AVE, BOX155, AURORA, CO 80045(720) 777-5513 Get Directions Write a Review

NPPES record last updated: July 24, 2012. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Gretchen Berrios-siervo Psy.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

GRETCHEN BERRIOS-SIERVO PSY.D. (NPI 1477809770) is an individual clinical neuropsychologist in Aurora, Colorado and active in the NPI registry since July 2012. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1477809770

Entity TypeIndividualFemale

Primary Taxonomy103G00000X

Provider Legal NameGRETCHEN BERRIOS-SIERVOCredential: PSY.D.

Location Address13123 E 16TH AVE, BOX155Aurora, CO 80045-7106

Mailing AddressPo Box 881Quechee, VT 05059-0881 · (786) 295-3609

Phone(720) 777-5513

Sole ProprietorNo

Enumeration DateJuly 24, 2012

✔ NPI 1477809770 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinical NeuropsychologistBehavioral Health & Social Service Providers

Taxonomy Code103G00000X

Definition

A clinical psychologist who applies principles of assessment and intervention based upon the scientific study of human behavior as it relates to normal and abnormal functioning of the central nervous system. The specialty is dedicated to enhancing the understanding of brain-behavior relationships and the application of such knowledge to human problems.

13123 E 16TH AVE, Aurora, CO 80045

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Select Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Gretchen Berrios-siervo Psy.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Gretchen Berrios-siervo reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

University Physicians Incorporated

0.1 mi

Pediatrics

13123 E 16TH AVE
Aurora, CO 80045

Reassigned Medicare billing, Colorado enrollment
4,283 clinicians in this Medicare group

NPI 1083662498 (720) 777-1234

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ERIN TERAVEST PA

Physician Assistant (Surgical)

13123 E 16TH AVE
AURORA, CO 80045

Adams County (720) 777-1234

MELISSA KAY FRAZER AA-C

Anesthesiologist Assistant

13123 E 16TH AVE
AURORA, CO 80045

Adams County (720) 777-1234

RACHEL MARIE RANWEILER

Registered Nurse (Neonatal Intensive Care)

13123 E 16TH AVE
AURORA, CO 80045

Adams County (720) 777-6857

DR. KATHRYN LYN PEGAN AU.D.

Audiologist

13123 E 16TH AVE, 2ND FLOOR OUTPATIENT PAVILION - AUDIOLOGY
AURORA, CO 80045

Adams County (720) 777-1961

MRS. KRISTEN L HOLDER FNP-C, APRN-BC

Nurse Practitioner (Psychiatric/Mental Health)

13123 E 16TH AVE
AURORA, CO 80045

Adams County (720) 777-1234

MRS. JILL M MARKS RN, APN

Nurse Practitioner (Pediatrics)

13123 E 16TH AVE
AURORA, CO 80045

Adams County (720) 777-1234

MRS. WENDELYN M BARRETT NNP

Registered Nurse (Neonatal Intensive Care)

13123 E 16TH AVE
AURORA, CO 80045

Adams County (720) 777-6857

DR. TIMOTHY OWEN VANDERKOOY MD

Emergency Medicine (Pediatric Emergency Medicine)

13123 E 16TH AVE, AURORA, CO 80045-7106
AURORA, CO 80045

Adams County (720) 777-1234

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gretchen Berrios-siervo's NPI number?

The NPI number for Gretchen Berrios-siervo is 1477809770. It was assigned to this individual provider in the NPPES registry on July 24, 2012.

Where is Gretchen Berrios-siervo located?

Gretchen Berrios-siervo practices at 13123 E 16th Ave Box155, Aurora, CO 80045. The listed phone number is (720) 777-5513.

What is Gretchen Berrios-siervo's specialty?

The primary specialty registered for this NPI is Clinical Neuropsychologist with taxonomy code 103G00000X.

Is Gretchen Berrios-siervo enrolled in Medicare?

Yes. Gretchen Berrios-siervo is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Gretchen Berrios-siervo's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gretchen Berrios-siervo reassigns Medicare benefits to University Physicians Incorporated (Aurora, CO). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Gretchen Berrios-siervo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Gretchen Berrios-siervo accept?

Health plans from Select Health list Gretchen Berrios-siervo as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Gretchen Berrios-siervo was last updated on July 24, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.