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

Internal Medicine

Obinna E. Nwadibia, MD

Works at hospitals in Spirit Lake, IA · Sioux Falls, SD · Carroll, IA … · Iowa, South Dakota, Minnesota

Summary

Obinna E. Nwadibia, MD (Internal Medicine) is listed by Medicare at 5 hospitals in Spirit Lake, IA, Sioux Falls, SD and Carroll, IA and other places. NPI 1790940658. 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 Obinna E. Nwadibia, 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
27Years since medical school (graduated 1999)
MaleGender (as listed)
Sanford Health NetworkGroup practice (+2 more)

Quick answers

Which hospitals does Obinna E. Nwadibia work at?
Medicare's official clinician data lists Obinna E. Nwadibia at 5 hospitals: Lakes Regional Healthcare, Sanford Usd Medical Center, St Anthony Regional Hospital & Nursing Home, St Francis Medical Center and Windom Area Health. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Obinna E. Nwadibia see patients?
Medicare's clinician data lists 6 practice locations, including Sioux Falls, SD, Jackson, MN and Breckenridge, MN. Call before your visit to confirm the address.
What is Obinna E. Nwadibia's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Obinna E. Nwadibia accept Medicare assignment?
Yes. Medicare's clinician data says Obinna E. Nwadibia 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 Obinna E. Nwadibia?
(507) 847-2200, as listed in official Medicare / NPI Registry data.
What is Obinna E. Nwadibia's NPI number?
1790940658. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Obinna E. Nwadibia works

Medicare's Facility Affiliation Data lists Obinna E. Nwadibia 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 Obinna E. Nwadibia is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.

Group practices

Medicare enrollment lists Obinna E. Nwadibia as a member of these groups (CMS data updated 2026-10-02).

  • Sanford Health Network351 clinicians in the group
  • Sanford Clinic268 clinicians in the group
  • St Francis Medical Center16 clinicians in the group

Specialties

Find other Internal Medicine doctors in South Dakota →

Other internal medicine doctors in Sioux Falls

Clinicians with the same Medicare primary specialty in Sioux Falls, SD — not a recommendation.

All internal medicine doctors in Sioux Falls →

Clinician information

CredentialMD
Graduation year1999
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1790940658
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