Summary

Dr. Mark Fesler is a hematology and oncology specialist who earned his medical degree from St. Louis University School of Medicine. He completed his residency at the University of Colorado School of Medicine before returning to St. Louis University School of Medicine for fellowship training in his specialty areas. Dr. Fesler holds certification in internal medicine from the American Board of Internal Medicine and provides care in English.

Dr. Fesler practices at multiple SSM Health locations including Saint Louis University Hospital, Saint Mary's Hospital in Saint Louis, Cardinal Glennon Children's Hospital, and Saint Luke's Hospital, with his primary location at St. Luke's Center for Cancer Care in Chesterfield, Missouri. He specializes in treating blood disorders and cancers, including complex conditions like multiple myeloma. His practice also addresses joint-related concerns such as hip pain and arthralgia. Patients consistently rate Dr. Fesler's care highly, giving him an average rating of 5.0.
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Overview based on verified provider data

Quick Facts

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

Patients’ Perspective

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

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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Mark J. Fesler, MDCatherine C RogersSarah Marie MccaffreyDr. Emily Marie Isaak Schindler, MD
HematologyNurse PractitionerNurse PractitionerHematology
Accepts New Patients
18 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, Spanish Speaks English
Chesterfield , MOSaint Louis , MOO Fallon , ILSaint Louis , MO
Med School: St. Louis University School of Medicine (Medical Education) Med School: University Of Iowa
Current Profile
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Insurance Plans Accepted by Mark J. Fesler

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

Medical Specialties

Mark J. Fesler has the following 2 specialties

Specialty Expertise

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

Mark J. Fesler holds an expired medical license in the state of Missouri. They are board certified in Internal medicine by the American Board of Internal Medicine.

Board Certifications

Board certified in Internal medicine by the American Board of Internal Medicine.

Medical License

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

Education & Training

Fellowship

Completed their fellowship at St. Louis University School of Medicine.

Residency

Completed their residency at University Of Colorado School Of Medicine.

Medical School

Graduated from St. Louis University School of Medicine (Medical Education).

NPI Number

Mark J. Fesler's NPI number is 1235204066.

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Frequently Asked Questions

Where is Mark Fesler's office located?
Mark Fesler's office is located at 232 S Woods Mill Rd Ste 330, Chesterfield, MO, 63017.
What languages does Mark Fesler speak?
Mark Fesler speaks English.
Which hospitals is Mark Fesler affiliated with?
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 Mark Fesler accept my insurance?
You can see the insurance plans that Mark Fesler accepts on their Vitals profile.
How can I make an appointment with Mark Fesler?
You can find contact information for Mark Fesler here on Vitals.

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