Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Nurse Practitioner

Cassie S. Guglielmi, NP

Sees patients in Aurora, CO · Colorado

Summary

Cassie S. Guglielmi, NP (Nurse Practitioner) is enrolled with Medicare at 1 practice location in Aurora, CO. NPI 1912123738. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Cassie S. Guglielmi, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Nurse PractitionerPrimary specialty
YesAccepts Medicare assignment
22Years since medical school (graduated 2004)
FemaleGender (as listed)
Colorado Permanente Medical Group PCGroup practice

Quick answers

Where does Cassie S. Guglielmi see patients?
Medicare's clinician data lists 1 practice location in Aurora, CO. Call before your visit to confirm the address.
What is Cassie S. Guglielmi's specialty?
Medicare lists Nurse Practitioner as the primary specialty.
Does Cassie S. Guglielmi accept Medicare assignment?
Yes. Medicare's clinician data says Cassie S. Guglielmi accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Cassie S. Guglielmi?
(303) 338-4545, as listed in official Medicare / NPI Registry data.
What is Cassie S. Guglielmi's NPI number?
1912123738. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Cassie S. Guglielmi is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Cassie S. Guglielmi as a member of this group (CMS data updated 2026-10-02).

  • Colorado Permanente Medical Group PC1,327 clinicians in the group

Specialties

Find other clinicians: Nurse Practitioner, Colorado →

Other nurse practitioners in Aurora

Clinicians with the same Medicare primary specialty in Aurora, CO — not a recommendation.

All nurse practitioners in Aurora →

Clinician information

CredentialNP
Graduation year2004
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1912123738
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians