Dr. Mateusz Opyrchal, MD

Hematology & Oncology, Internal Medicine

Accepting new patients 14 years of experience


Dr. Mateusz Opyrchal, MD is an Internist (Hematologist or Oncologist) in O Fallon, IL. He specializes in Hematology & Oncology and Internal Medicine, has 14 years of experience, and is board certified. He graduated from Mayo Clinic and he is affiliated with Memorial Hospital East.

Dr. Opyrchal works at Washington University and 1 other location. He frequently treats conditions like Secondary Malignancies, Melanoma along with other conditions at varying frequencies. Dr. Opyrchal also...

Find providers based on your care needs

Start the search for a new doctor with Super Profiles and customizable filters that matter the most to you.

User Ratings (of at least 4.0)

Accepting New Patients

Insurance Accepted

Conditions Treated and Procedures Performed

Online Scheduling

Headshot Available

Experience & Treatment Frequency

Search for conditions or procedures.

Secondary Malignancies
Breast Cancer
Secondary Malignancies
Close Icon

Treatment Frequency

View other providers who treat this condition
Close Icon

Treatment Frequency

Learn more about Anemia View other providers who treat this condition
Breast Cancer
Close Icon

Treatment Frequency

View other providers who treat this condition

Conditions and Procedures FAQ

Check your insurance

Insurance FAQ

We know health insurance can be a tricky topic. So, we’ve broken down the most important aspects of health insurance by defining key terms and answering commonly asked questions.

Ratings & Reviews

Average provider rating

Group 24

Leave a review

How was your appointment with Dr. Mateusz Opyrchal, MD?

About Dr. Mateusz Opyrchal, MD


  • Hematology & Oncology
  • Internal Medicine

Years of Experience

14 years of experience

Languages Spoken

  • English



NPI Number


Education & Certifications


  • Mayo Clinic


  • Oncology Fellowship, Mayo Clinic, Rochester, MN

Board Certifications

  • ABMS
  • ABMS
  • Medical Oncology


Primary Location Pin Icon

Primary Location

Washington University Physicians In Illinois

1418 Cross St Ste 180,

O Fallon, IL 62269

Washington University

4921 Parkview Pl Fl 7,

Saint Louis, MO 63110


Admitting Hospitals

  • Memorial Hospital East

Frequently Asked Questions

Are you Dr. Mateusz Opyrchal, MD?

Login or create a Doctor.com account to manage your FindCare profile.

Claim your free profile