Mark J. Ratain
Expertise in
2
conditions

Dr. Mark J. Ratain

Hematology | Oncology
5758 S. Maryland Ave., 
Chicago, IL 
Accepting New Patients
Offers Telehealth
Expertise in
2
conditions
5758 S. Maryland Ave., 
Chicago, IL 

Overview

Mark Ratain is a Hematologist and an Oncologist practicing medicine in Chicago, Illinois.

Dr. Ratain is highly rated in 2 conditions, according to our data. His clinical expertise encompasses Agranulocytosis, Endometrial Cancer, Colorectal Cancer, Breast Cancer, and Endoscopy.

Dr. Ratain is board certified in Practicing Since1986 and Hematology Internal Medicine Medical Oncology. He is actively involved in clinical research, co-authoring 257 peer reviewed articles and participating in 1 clinical trial. Dr. Ratain is currently accepting new patients.

Specialties

Hematology
Oncology

Licenses

Internal Medicine in IL

Board Certifications

Practicing Since1986
Hematology Internal Medicine Medical Oncology

Fellowships

University of Chicago Medicine

Hospital Affiliations

The University Of Chicago Medical Center
UChicago Medicine Faculty Physicians

Languages Spoken

English

Gender

Male

Insurance

Accepted insurance can change. Please verify directly with the provider.

Find your insurance
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Accepted insurance plans:

Aetna
  • EPO
  • HMO
  • POS
  • PPO
Humana
  • HMO
  • INDEMNITY
  • POS
  • PPO
Oscar
  • EPO
  • HMO
  • PPO

Locations

UChicago Medicine Duchossois Center for Advanced Medicine - Hyde Park
5758 S. Maryland Ave., Chicago, IL 60637

Clinical Research

Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.

1 Clinical Trials

A Phase 1/1b, Open-Label, Multicenter, Repeat-Dose, Dose-Selection Study of Ciforadenant as Single Agent and in Combination With Atezolizumab in Patients With Selected Incurable Cancers
A Phase 1/1b, Open-Label, Multicenter, Repeat-Dose, Dose-Selection Study of Ciforadenant as Single Agent and in Combination With Atezolizumab in Patients With Selected Incurable Cancers
Enrollment Status: Completed
Publish Date: August 30, 2021
Intervention Type: Drug
Study Drugs: Ciforadenant, Ciforadenant+Atezolizumab
Study Phase: Phase 1

257 Total Publications

Envisioning Low-Dose Tarlatamab.
Envisioning Low-Dose Tarlatamab.
Journal: JTO clinical and research reports
Published: August 27, 2026
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Frequently Asked Questions about Dr. Mark J. Ratain

How do I make an appointment with Dr. Mark J. Ratain?

You can book an appointment with Dr. Mark J. Ratain by calling their office at 888-824-0200. MediFind provides direct contact information so you can schedule visits, second opinions, or consultations without navigating third-party calendars.

Is Dr. Mark J. Ratain a top-rated expert for Agranulocytosis?

MediFind is an objective health platform that identifies experts based on real-world data. Dr. Mark J. Ratain is classified as an Advanced expert for Agranulocytosis, meaning they are among the top experts in the country for this condition. This ranking is based on their volume of patients, published research, and peer connections.

What conditions does Dr. Mark J. Ratain specialize in?

While Dr. Mark J. Ratain is a Hematology, they have specific expertise in Agranulocytosis, Endometrial Cancer, and Colorectal Cancer. MediFind analyzes a doctor's articles and referral patterns to identify their specific areas of focus within Hematology.

Does Dr. Mark J. Ratain participate in research or clinical trials?

Yes. Dr. Mark J. Ratain has published 257 articles and abstracts on conditions like Agranulocytosis. You can view a list of Dr. Mark J. Ratain's latest peer-reviewed publications and clinical trial participation on their profile to see if they are active in new treatments.

Does Dr. Mark J. Ratain accept my insurance?

Dr. Mark J. Ratain accepts most major insurance plans, including Aetna and Humana. We recommend calling the office directly at 888-824-0200 to verify that your specific plan is currently accepted before your visit.

Areas of Expertise

MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.

Learn more about MediFind’s expert tiers

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