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Obstetrics/Gynecology

Onyinyechukwu O. Ohamadike, MD

Sees patients in Chicago, IL · Warwick, RI · Illinois, Rhode Island

Summary

Dr. Onyinyechukwu O. Ohamadike, MD is an OB-GYN at 420 E Ohio St, Apt 12e, Chicago, IL 60611. May accept Medicare assignment. NPI 1699415661. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: OB-GYN (Medicare lists Obstetrics/Gynecology)
  • Address: 420 E Ohio St, Apt 12e, Chicago, IL 60611 · Directions (1 more location)
  • Medicare: May accept Medicare assignment
  • Medical school: Duke University School Of Medicine · graduated 2022 (4 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Onyinyechukwu O. Ohamadike, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Onyinyechukwu O. Ohamadike accept Medicare assignment?
Medicare's clinician data says Onyinyechukwu O. Ohamadike may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
What is Onyinyechukwu O. Ohamadike's NPI number?
1699415661. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Onyinyechukwu O. Ohamadike is enrolled with Medicare (CMS data updated October 2, 2026).

  • 420 E Ohio St, Apt 12eChicago, IL 60611
  • 455 Toll Gate RdWarwick, RI 02886

Specialties

Find other Obstetrics/Gynecology doctors in Illinois →

Other OB-GYNs in Chicago

Clinicians with the same Medicare primary specialty in Chicago, IL — not a recommendation.

All OB-GYNs in Chicago →

Clinician information

CredentialMD
Medical schoolDuke University School Of Medicine
Graduation year2022 (4 years since medical school)
Gender (as listed)Female
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1699415661
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians