Summary

Dr. Mary Dean Onayemi is an obstetrician and gynecologist who brings 46 years of experience to women's healthcare in Chicago. She earned her medical degree from the University of Illinois at Chicago College of Medicine and completed her residency training at Cook County Hospital. Her extensive background has equipped her to provide comprehensive care throughout all stages of a woman's life. Dr. Onayemi is fluent in both Spanish and English, allowing her to serve diverse communities across the city.

Dr. Onayemi practices at Chicago Family Health Center and Western Diversey Surgical Center, both located in Chicago. She specializes in managing complex pregnancy conditions such as antepartum depression and preeclampsia, while also addressing concerns like vaginal bleeding during pregnancy. Her clinical expertise includes performing essential women's health screenings, including tests for sexually transmitted infections like chlamydia, gonorrhea, and trichomonas. Patients have given her an average rating of 3.7 out of 5 stars on Vitals, reflecting her commitment to providing quality obstetric and gynecologic care.
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Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 3.7
  • 46 years of experience
  • speaks Spanish, English
  • Cook County Hospital
  • 3 written reviews
  • 1 specialty
  • 11 areas of expertise
  • 1 board certification
  • 1 hospital affiliation
  • 2 office locations
  • Female

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. Mary Ann Dean Onayemi has 2 locations

Chicago Family Health Center

9119 S Exchange AveChicago, IL 60617
Mon8:30 am - 8:00 pm
Tue8:30 am - 5:00 pm
Wed8:30 am - 8:00 pm
Thu8:30 am - 8:00 pm
Fri8:30 am - 5:00 pm
Sat8:30 am - 1:00 pm
SunClosed

Western Diversey Surgical Center

2744 N Western AveChicago, IL 60647
Mon8:00 am - 6:00 pm
Tue8:00 am - 6:00 pm
Wed8:00 am - 6:00 pm
Thu8:00 am - 6:00 pm
Fri8:00 am - 6:00 pm
Sat8:00 am - 3:00 pm
SunClosed

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Dr. Mary Ann Dean Onayemi, MD
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Dr. Mary Ann Dean Onayemi, MDDr. Lyndon Douglas Taylor, MDDr. Marsha E Gorens, MDJR Robert Hipps
Obstetrics & GynecologyObstetrics & GynecologyObstetrics & GynecologyPediatrics
Accepts New Patients Accepts New Patients Accepts New Patients
3.7 
4.2 
46 Years of Experience 48 Years of Experience 46 Years of Experience 29 Years of Experience
No Virtual Visit Option Virtual Visit Available No Virtual Visit Option No Virtual Visit Option
Speaks Spanish, English Speaks English, Spanish, Russian Speaks Spanish, English
Chicago , ILOAK PARK , ILChicago , ILChicago , IL
Med School: University Of Illinois At Chicago College Of Medicine Med School: Universidad Autonoma De Guadalajara Facultad De Medicina Med School: University Of Illinois At Chicago College Of Medicine Med School: Rush Medical College Of Rush University Medical Center
Current Profile
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Insurance Plans Accepted by Dr. Mary Ann Dean Onayemi

  • Accepts Medicare

Medical Specialties

Dr. Mary Ann Dean Onayemi has the following specialty

Specialty Expertise

Dr. Mary Ann Dean Onayemi has the following 11 areas of expertise

  • Birth Control
  • C-section
  • Child Birth
  • Hot Flashes
  • Infertility
  • Menopause
  • Menstrual Pain
  • Pap Smear
  • Pelvic Exam
  • Pregnancy
  • Women's Health

Certifications, License, & Education

46 Years Experience

Dr. Mary Ann Dean Onayemi holds an active medical license in the state of Illinois.

Medical License

Medical Doctor with an active medical license in the state of Illinois that expired in 2026.

Education & Training

Residency

Completed their residency at Cook County Hospital.

Medical School

Graduated from University Of Illinois At Chicago College Of Medicine in 1980.

NPI Number

Dr. Dean Onayemi's NPI number is 1770518169.

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Frequently Asked Questions

How can I make an appointment with Dr. Mary Ann Dean Onayemi?
You can find contact information for Dr. Mary Ann Dean Onayemi here on Vitals.
Where is Dr. Mary Ann Dean Onayemi's office located?
Dr. Mary Ann Dean Onayemi's office is located at 9119 S Exchange Ave, Chicago, IL, 60617.
What languages does Dr. Mary Ann Dean Onayemi speak?
Dr. Mary Ann Dean Onayemi speaks Spanish and English.
Which hospitals is Dr. Mary Ann Dean Onayemi affiliated with?
Dr. Mary Ann Dean Onayemi is affiliated with Advocate Trinity Hospital.
Is Dr. Mary Ann Dean Onayemi accepting new patients?
Dr. Mary Ann Dean Onayemi is accepting new patients on Vitals. View Dr. Mary Ann Dean Onayemi's profile on Vitals to make an appointment.

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