Mary Dean Onayemi, MD

Practice locations

Addresses where Mary Dean Onayemi is enrolled with Medicare (CMS data updated October 2, 2026).

• 214 McHenry RdBuffalo Grove, IL 60089 (847) 459‑1160
• 2320 E 93rd StChicago, IL 60617 (773) 967‑3999
• 9119 S Exchange AveChicago, IL 60617 (773) 768‑5000

Group practices

Medicare enrollment lists Mary Dean Onayemi as a member of these groups (CMS data updated October 2, 2026).

• Advocate Health and Hospitals Corporation3,118 clinicians in the group
• Chicago Family Health Center Inc30 clinicians in the group

Specialties

• Obstetrics/Gynecologyprimary

Find other Obstetrics/Gynecology doctors in Illinois →

Other OB-GYNs in Buffalo Grove

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

• Marion G. Jelcz, MD
• Mary Meram, DO
• Irma L. Sodini, MD
• Rachel K. Harrison, MD
• Priyadarshini Koduri, MD
• Sean T. George, MD
• Cassaundra Burt, MD
• Dorothy Hakimian, DO

All OB-GYNs in Buffalo Grove →

Other clinicians in Advocate Health and Hospitals Corporation

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Alexander Hristov
• Veda Ramesh, MD
• Nnaneme C. Mgbodille, MD
• Lai Kuang, MD
• Sorin C. Danciu, MD
• Ryan R. Coates, MD

Clinician information

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