Dr. Adedayo A Onitilo, MD, PhD, MSCR, FACP
5.0(25 reviews)
View Phone #Call NowWebsite

Office Hours at Marshfield Medical Center-Weston Medical Offices-Cancer Care

  • Mon:8:00am - 5:00pm
  • Tue:8:00am - 5:00pm
  • Wed:8:00am - 5:00pm
  • Thu:8:00am - 5:00pm
  • Fri:8:00am - 5:00pm

Dr. Adedayo A Onitilo, MD, PhD, MSCR, FACP
Internal Medicine Physician - Medical Oncology

Highlights

  • Board Certified

Biography

Dr. Adedayo Onitilo is the director of Cancer Care and Research. He is principal investigator of WinCORP, which provides access to NCI-sponsored clinical trials to more than 680,000 people in Wisconsi… Read more ›

Featured Review See More Reviews

Dr Onitilo is an excellent physician.…

Anonymous

Summary

Provider Training

UniversityDegreeFocusGraduated
Abia State University Faculty of MedicineMedical DegreeNot Specified
Obafemi Awolowo University College of Health SciencesMedical Degree1995

InstitutionFocusYear
Residency - Harlem Hospital Center Program Not Specified

CertificationCert. BodyYear
Internal medicine
Sub-Specialty: Hematology
Internal MedicineNot Specified

Photos

Provider Profile 0

Specialties

Languages Spoken
English
Medical Specialties
  • Internal Medicine Physician - Sub-Specialty: Medical Oncology

Accepts New Patients: Yes

Payment Options

Payment Details

Reviews

Average Rating: 5.0
Number of Reviews: 25
Most Recent Review: 08/14/2026
Write a Review

Office & Staff Evaluation Not rated

Ease of Getting an Appointment Not rated
Courtesy of Practice Staff Not rated
Office Appearance & Atmosphere Not rated
Handling of Billing Matters Not rated
Average Wait Time Not Rated

Provider Evaluation 5.0

Listening Skills 5.0
Clear Explanations 5.0
Open full review
Verified Patient

“Dr Onitilo is an excellent physi...”

Dr Onitilo is an excellent physician.

Anonymous 08/14/2026
Open full review
Verified Patient

“Dr. Onitilo is fabulous and I'm ...”

Dr. Onitilo is fabulous and I'm grateful & blessed to be in his care.

Anonymous 05/11/2026
Open full review
Verified Patient

“Dr Cruff was very thorough and p...”

Dr Cruff was very thorough and patient. I have cognitive problems and memory issues and it takes awhile sometimes to get the information out. He was patient and let me get it all out. He has a plan to help and explained it to me. He also gave me handouts explaining the procedure which really helps me understand what is going to happen.

Anonymous 03/12/2026
Open full review
Verified Patient

“Doctor Onitilo couldn't be more ...”

Doctor Onitilo couldn't be more professional & caring.

Anonymous 02/13/2026
Open full review
Verified Patient

“Everything went perfectly...”

Everything went perfectly

Anonymous 11/14/2025
Open full review
Verified Patient

“NEVER had a bad experience with ...”

NEVER had a bad experience with Dr. Onitilo on his nurses or staff!

Anonymous 07/17/2026
Open full review
Verified Patient

“Outstanding physician! Grateful...”

Outstanding physician! Grateful for his expertise.

Anonymous 03/18/2026
Open full review
Verified Patient

“Have highly recommended good per...”

Have highly recommended good personality.

Anonymous 02/17/2026
Open full review
Verified Patient

“I had concern about a possibly s...”

I had concern about a possibly side effect, that could become permanent, and how it would alter my life. He offered to change meds to one without that specific side effect, but similar medical uses

Anonymous 12/11/2025
Open full review
Verified Patient

“Good....”

Good.

Anonymous 09/19/2025
Load More Reviews

Locations

Affiliated Practices

Practice Colleagues

Profile
Dr Carol Grabowski, MD   -   Diagnostic Radiologist, Radiation Oncologist
0 reviews
Open Profile
Profile
Emily Schillinger, DNP   -   Nurse Practitioner
0 reviews
Open Profile

Procedures & Services

Procedures & Treatments Offered

    Commonly Prescribed Medications

    Dr. Adedayo A Onitilo, MD, PhD, MSCR, FACP has not yet listed the medications that he commonly prescribes.

    Accepted Insurance

    Accepted Insurance

    Dr. Adedayo A Onitilo, MD, PhD, MSCR, FACP has not yet specified the insurance plans he accepts.