Summary

Dr. Mark Fesler is a hematology-oncology specialist who focuses on treating blood disorders and cancers. He earned his medical degree from St. Louis University School of Medicine and completed his residency at the University of Colorado Health Sciences Center. Dr. Fesler furthered his training with fellowships at both St. Louis University Medical Center and St. Louis University School of Medicine. He holds board certification in internal medicine from the American Board of Internal Medicine and speaks English.

Dr. Fesler practices at multiple SSM Health locations, including Saint Louis University Hospital, Saint Mary's Hospital Saint Louis, Cardinal Glennon Children's Hospital, and Saint Luke's Hospital, with his primary location in Chesterfield, Missouri. He specializes in treating various forms of lymphoma, including non-Hodgkin lymphoma and AIDS-related lymphoma. His expertise includes performing advanced imaging procedures such as CT scans, PET scans, and PET-CT scans to diagnose and monitor cancer treatment. Patients consistently rate Dr. Fesler highly, giving him an average rating of 5.0.
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AI-generated from data on this provider profile.

Quick Facts

  • accepting new patients
  • 5
  • speaks English
  • St. Louis University Medical Center
  • 1 written review
  • 2 specialties
  • 16 areas of expertise
  • 2 board certifications
  • 4 hospital affiliations
  • 1 office location
  • Male

Office Location

St. Luke's Center for Cancer Care

232 S Woods Mill Rd Ste 330Chesterfield, MO 63017
Mon8:00 am - 4:30 pm
Tue8:00 am - 4:30 pm
Wed8:00 am - 4:30 pm
Thu8:00 am - 4:30 pm
Fri8:00 am - 4:30 pm
SatClosed
SunClosed

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Dr. Mark J. Fesler, MDDr. Friederike Helene Kreisel, MDPamela S LynnDr. Valsamma James Thevary, MD
HematologyPathologyNurse PractitionerNurse Practitioner
Accepts New Patients
31 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English Speaks English Speaks English
Chesterfield , MOSaint Louis , MOSaint Louis , MOSaint Louis , MO
Med School: St. Louis University School of Medicine (Medical Education) Med School: Goethe-Universitaet Frankfurt Am Main Fachbereich Medizin
Current Profile
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Insurance Plans Accepted by Dr. Mark J. Fesler

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. Mark J. Fesler has the following 2 specialties

Specialty Expertise

Dr. Mark J. Fesler has the following 16 areas of expertise

  • Acute Myeloid Leukemia
  • Cancer
  • Check-up
  • Chronic Myeloid Leukemia
  • Chronic Myelomonocytic Leukemia
  • Cystic Fibrosis
  • Deep Vein Thrombosis
  • Heartburn
  • Hepatitis C
  • Immunization
  • Leukemia
  • Lymphoma
  • Oncology
  • Physical
  • Vaccination
  • Weight Loss

Certifications, License, & Education

BOARD CERTIFICATIONS

American Board of Internal Medicine

Internal medicine

MEDICAL LICENSE

Medical Doctor, Missouri, 2026, Expired

EDUCATION & TRAINING

Fellowship

St. Louis University Medical Center
St. Louis University School of Medicine

Residency

University of Colorado Health Sciences Center

Medical School

St. Louis University School of Medicine (Medical Education)

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Frequently Asked Questions

Is Dr. Mark Fesler accepting new patients?
Dr. Mark Fesler is accepting new patients on Vitals. View Dr. Mark Fesler's profile on Vitals to make an appointment.
Does Dr. Mark Fesler accept virtual/telehealth appointments?
Dr. Mark Fesler has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Which hospitals is Dr. Mark Fesler affiliated with?
Dr. Mark Fesler is affiliated with Ssm Health Saint Louis University Hospital, Ssm Health Saint Marys Hospital Saint Louis, Ssm Health Cardinal Glennon Childrens Hospital, and SAINT LUKES HOSPITAL.
Does Dr. Mark Fesler accept my insurance?
You can see the insurance plans that Dr. Mark Fesler accepts on their Vitals profile.
Where is Dr. Mark Fesler's office located?
Dr. Mark Fesler's office is located at 232 S Woods Mill Rd Ste 330, Chesterfield, MO, 63017.

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