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

Internal Medicine

Karen M. Chacko, MD

Works at hospitals in Aurora, CO · Colorado

Summary

Karen M. Chacko, MD (Internal Medicine) is listed by Medicare at 1 hospital in Aurora, CO. NPI 1124118807. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Karen M. Chacko, 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

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
30Years since medical school (graduated 1996)
University Of California, San Diego School Of MedicineMedical school
FemaleGender (as listed)
University Physicians IncorporatedGroup practice

Quick answers

Which hospitals does Karen M. Chacko work at?
Medicare's official clinician data lists Karen M. Chacko at 1 hospital: University of Colorado Hospital Authority. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Karen M. Chacko see patients?
Medicare's clinician data lists 1 practice location in Aurora, CO. Call before your visit to confirm the address.
What is Karen M. Chacko's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Karen M. Chacko accept Medicare assignment?
Yes. Medicare's clinician data says Karen M. Chacko 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.
Does Karen M. Chacko offer telehealth?
Medicare's clinician data says Karen M. Chacko offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Karen M. Chacko?
(720) 848-0000, as listed in official Medicare / NPI Registry data.
What is Karen M. Chacko's NPI number?
1124118807. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Karen M. Chacko works

Medicare's Facility Affiliation Data lists Karen M. Chacko at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Karen M. Chacko is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Karen M. Chacko as a member of this group (CMS data updated 2026-10-02).

  • University Physicians Incorporated3,215 clinicians in the group

Specialties

Find other Internal Medicine doctors in Colorado →

Other internal medicine doctors in Aurora

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

All internal medicine doctors in Aurora →

Clinician information

CredentialMD
Medical schoolUniversity Of California, San Diego School Of Medicine
Graduation year1996
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1124118807
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. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians