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

Hospitalist

Catherine I. Onyiuke, MD

Works at hospitals in Cartersville, GA · Austell, GA · Marietta, GA … · Georgia

Summary

Catherine I. Onyiuke, MD (Hospitalist) is listed by Medicare at 5 hospitals in Cartersville, GA, Austell, GA and Marietta, GA and other places. NPI 1750344560. 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 Catherine I. Onyiuke, 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

HospitalistPrimary specialty
YesAccepts Medicare assignment
34Years since medical school (graduated 1992)
FemaleGender (as listed)
Wellstar Medical Group LLCGroup practice (+1 more)

Quick answers

Which hospitals does Catherine I. Onyiuke work at?
Medicare's official clinician data lists Catherine I. Onyiuke at 5 hospitals: Piedmont Cartersville Medical Center, Wellstar Cobb Medical Center, Wellstar Kennestone Regional Medical Center, Wellstar North Fulton Medical Center and Wellstar Paulding Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Catherine I. Onyiuke see patients?
Medicare's clinician data lists 3 practice locations, including Roswell, GA, Atlanta, GA and Cartersville, GA. Call before your visit to confirm the address.
What is Catherine I. Onyiuke's specialty?
Medicare lists Hospitalist as the primary specialty, and also Internal Medicine.
Does Catherine I. Onyiuke accept Medicare assignment?
Yes. Medicare's clinician data says Catherine I. Onyiuke 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 Catherine I. Onyiuke?
(770) 751-2777, as listed in official Medicare / NPI Registry data.
What is Catherine I. Onyiuke's NPI number?
1750344560. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Catherine I. Onyiuke works

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

Group practices

Medicare enrollment lists Catherine I. Onyiuke as a member of these groups (CMS data updated 2026-10-02).

  • Wellstar Medical Group LLC3,093 clinicians in the group
  • Piedmont Hospitalist Physicians LLC508 clinicians in the group

Specialties

Find other Hospitalist doctors in Georgia →

Other hospitalists in Roswell

Clinicians with the same Medicare primary specialty in Roswell, GA — not a recommendation.

All hospitalists in Roswell →

Clinician information

CredentialMD
Graduation year1992
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1750344560
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