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

Internal Medicine

Marleta Sullivan, DO

Works at hospitals in Grand Junction, CO · Colorado

Summary

Marleta Sullivan, DO (Internal Medicine) is listed by Medicare at 2 hospitals in Grand Junction, CO. NPI 1043898323. 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 Marleta Sullivan, 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
5Years since medical school (graduated 2021)
Midwestern University, Chicago College Of Osteopathic MedMedical school
FemaleGender (as listed)
Colorado West Healthcare SystemGroup practice

Quick answers

Which hospitals does Marleta Sullivan work at?
Medicare's official clinician data lists Marleta Sullivan at 2 hospitals: Community Hospital and Intermountain Health St. Mary's Regional Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Marleta Sullivan see patients?
Medicare's clinician data lists 1 practice location in Grand Junction, CO. Call before your visit to confirm the address.
What is Marleta Sullivan's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Marleta Sullivan accept Medicare assignment?
Yes. Medicare's clinician data says Marleta Sullivan 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 Marleta Sullivan?
(970) 242-0920, as listed in official Medicare / NPI Registry data.
What is Marleta Sullivan's NPI number?
1043898323. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Marleta Sullivan works

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

Group practices

Medicare enrollment lists Marleta Sullivan as a member of this group (CMS data updated 2026-10-02).

  • Colorado West Healthcare System47 clinicians in the group

Specialties

Find other Internal Medicine doctors in Colorado →

Other internal medicine doctors in Grand Junction

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

All internal medicine doctors in Grand Junction →

Clinician information

CredentialDO
Medical schoolMidwestern University, Chicago College Of Osteopathic Med
Graduation year2021
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1043898323
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