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Internal Medicine

Ariel A. Osorio, MD

Works at hospitals in Littleton, CO · Parker, CO · Aurora, CO · Colorado

Summary

Ariel A. Osorio, MD (Internal Medicine) is listed by Medicare at 3 hospitals in Littleton, CO, Parker, CO and Aurora, CO. NPI 1699338095. 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 Ariel A. Osorio, 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
7Years since medical school (graduated 2019)
FemaleGender (as listed)
Catholic Health Initiatives ColoradoGroup practice

Quick answers

Which hospitals does Ariel A. Osorio work at?
Medicare's official clinician data lists Ariel A. Osorio at 3 hospitals: AdventHealth Littleton, AdventHealth Parker and The Medical Center of Aurora & South Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Ariel A. Osorio see patients?
Medicare's clinician data lists 2 practice locations, including Parker, CO and Woodland Park, CO. Call before your visit to confirm the address.
What is Ariel A. Osorio's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Ariel A. Osorio accept Medicare assignment?
Yes. Medicare's clinician data says Ariel A. Osorio 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 Ariel A. Osorio offer telehealth?
Medicare's clinician data says Ariel A. Osorio offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Ariel A. Osorio?
(303) 649-3790, as listed in official Medicare / NPI Registry data.
What is Ariel A. Osorio's NPI number?
1699338095. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Ariel A. Osorio works

Medicare's Facility Affiliation Data lists Ariel A. Osorio 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 Ariel A. Osorio is enrolled with Medicare (CMS data updated 2026-10-02).

  • 11960 Lioness Way, Suite 190Parker, CO 80134 (303) 649‑3790
  • 41 State Hwy 67Woodland Park, CO 80863

Group practices

Medicare enrollment lists Ariel A. Osorio as a member of this group (CMS data updated 2026-10-02).

  • Catholic Health Initiatives Colorado1,225 clinicians in the group

Specialties

Find other Internal Medicine doctors in Colorado →

Other internal medicine doctors in Parker

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

All internal medicine doctors in Parker →

Clinician information

CredentialMD
Graduation year2019
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1699338095
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