Summary

Dr. Mark Sundermeyer is an oncologist and internal medicine physician with 26 years of experience treating cancer patients and managing complex medical conditions. He earned his medical degree from the University of Missouri Columbia School of Medicine and has dedicated his career to providing comprehensive cancer care and internal medicine services. Dr. Sundermeyer is fluent in English.

Dr. Sundermeyer practices at several leading medical centers, including Barnes Jewish Hospital, Christian Hospital, Missouri Baptist Medical Center, and Columbia Memorial Hospital, with locations in both Astoria, Oregon and Saint Louis, Missouri. He specializes in treating breast cancer and managing chronic kidney disease in its advanced stages. His expertise includes performing complete blood counts and white blood cell differential testing to monitor patient health during treatment. Patients rate Dr. Sundermeyer 4.7 out of 5 stars for his compassionate care and clinical expertise.

AI-generated from data on this provider profile.

Quick Facts

  • accepting new patients
  • 4.7
  • 26 years of experience
  • speaks English
  • University Of Missouri Columbia School Of Medicine
  • 6 written reviews
  • 2 specialties
  • 13 areas of expertise
  • 2 board certifications
  • 4 hospital affiliations
  • 7 office locations
  • Male

Office Locations

Dr. Mark Lee Sundermeyer has 7 locations

The Cancer Care Center

1905 Exchange StAstoria, OR 97103
Mon8:30 am - 5:00 pm
Tue8:30 am - 5:00 pm
Wed8:30 am - 5:00 pm
Thu8:30 am - 5:00 pm
Fri8:30 am - 5:00 pm
SatClosed
SunClosed

Cmh-Ohsu Knight Cancer Collaborative

1905 Exchange StAstoria, OR 97103

Barnes Jewish Hospital

1 Barnes Jewish Hospital PlzSaint Louis, MO 63110

Christian Hospital

11133 Dunn RdSaint Louis, MO 63136

Missouri Baptist Medical Center

3015 N Ballas RdSaint Louis, MO 63131

Siteman Cancer Center

4921 Parkview Pl Fl 7Saint Louis, MO 63110
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

Gary C Werths Building At Siteman Cancer Center

4500 FOREST PARK AVESAINT LOUIS, MO 63108
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 Lee Sundermeyer, MDDr. Aaron Andrew Brown, MDDr. Robert MorseDr. Sarunas Sliesoraitis, DO
OncologyFamily MedicineInternal MedicineOncology
Accepts New Patients Accepts New Patients
4.7 
26 Years of Experience 13 Years of Experience 17 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English Speaks English, Spanish Speaks English Speaks Spanish, English
Astoria , ORAstoria , ORIlwaco , WAAstoria , OR
Med School: University Of Missouri Columbia School Of Medicine Med School: Lake Erie College Of Osteopathic Medicine Bradenton Campus Med School: Lake Erie College Of Osteopathic Medicine
Current Profile
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Insurance Plans Accepted by Dr. Mark Lee Sundermeyer

  • Accepts Medicare
  • Accepts Medicaid

Medical Specialties

Dr. Mark Lee Sundermeyer has the following 2 specialties

Specialty Expertise

Dr. Mark Lee Sundermeyer has the following 13 areas of expertise

  • Acute Myeloid Leukemia
  • Bone Marrow Transplant
  • Cancer
  • Chemotherapy
  • Chronic Myelomonocytic Leukemia
  • Deep Vein Thrombosis
  • Hepatitis C
  • Hodgkin's Lymphoma
  • Internal Medicine
  • Leukemia
  • Lymphoma
  • Myelofibrosis
  • Myeloma

Certifications, License, & Education

26 Years Experience

MEDICAL LICENSE

Medical Doctor, Missouri, 2026, Expired

EDUCATION & TRAINING

Medical School

University Of Missouri Columbia School Of MedicineGraduated in 2000

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Frequently Asked Questions

Which hospitals is Dr. Mark Sundermeyer affiliated with?
Dr. Mark Sundermeyer is affiliated with Barnes Jewish Hospital, Christian Hospital, Missouri Baptist Medical Center, and Columbia Memorial Hospital.
Does Dr. Mark Sundermeyer accept my insurance?
You can see the insurance plans that Dr. Mark Sundermeyer accepts on their Vitals profile.
Is Dr. Mark Sundermeyer accepting new patients?
Dr. Mark Sundermeyer is accepting new patients on Vitals. View Dr. Mark Sundermeyer's profile on Vitals to make an appointment.
Where is Dr. Mark Sundermeyer's office located?
Dr. Mark Sundermeyer's office is located at 1905 Exchange St, Astoria, OR, 97103.
Does Dr. Mark Sundermeyer accept virtual/telehealth appointments?
Dr. Mark Sundermeyer has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.

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