3.1
7 Ratings with 6 written Reviews
Summary
Dr. Mark Walshauser specializes in oncology, bringing two decades of experience to cancer care. He earned his medical degree from Ross University School of Medicine and completed his residency at St. Louis University School of Medicine. Dr. Walshauser speaks English and has dedicated his career to helping patients navigate cancer treatment with expertise and compassion.
Dr. Walshauser practices at multiple locations across Illinois, including O'Fallon and Highland, with affiliations at HSHS Saint Elizabeth's Hospital, HSHS Saint Joseph's Hospital Highland, and several other medical centers. He treats patients with various forms of cancer, including lung cancer and non-small cell lung cancer. His practice also includes managing conditions like iron deficiency anemia that can accompany cancer treatment. Patients rate Dr. Walshauser an average of 3.1 out of 5 stars for his care.
Dr. Walshauser practices at multiple locations across Illinois, including O'Fallon and Highland, with affiliations at HSHS Saint Elizabeth's Hospital, HSHS Saint Joseph's Hospital Highland, and several other medical centers. He treats patients with various forms of cancer, including lung cancer and non-small cell lung cancer. His practice also includes managing conditions like iron deficiency anemia that can accompany cancer treatment. Patients rate Dr. Walshauser an average of 3.1 out of 5 stars for his care.
Overview based on verified provider data
Quick Facts
- accepting new patients
- 20 years of experience
- speaks English
- St Louis University School Of Medicine
- 6 written reviews
- 1 specialty
- 8 areas of expertise
- 6 hospital affiliations
- 6 office locations
- Male
Patients’ Perspective
- Had a good bedside manner
- Provided follow-up after the visit
- Flexible scheduling
Based on patient feedback. Read the reviews
Office Locations
Dr. Mark Andrew Walshauser has 6 locationsCancer Care Center Of Ofallon
321 Regency ParkO Fallon, IL 62269 Tel: (618) 416-7970
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
Cancer Care Specialists Of Illinois
12860 Troxler Ave Ste 135Highland, IL 62249 Tel: (618) 651-2888
MonClosed
TueClosed
WedClosed
Thu8:00 am - 4:30 pm
FriClosed
SatClosed
SunClosed
Compare with Similar Doctors
 |  |  | |
| Dr. Mark Andrew Walshauser, MD | Dr. John A Pinkston, MD | Jeane Marie Kuensting | Lynn Louise Golec |
| Oncology | Oncology | Nurse Practitioner | Nurse Practitioner |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | Accepts New Patients |
| 20 Years of Experience | 58 Years of Experience | ||
| No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option |
| Speaks English | Speaks French, Spanish | Speaks English | Speaks English |
| O Fallon , IL | Fort Payne , AL | Saint Louis , MO | Saint Louis , MO |
| Med School: ROSS UNIVERSITY SCHOOL OF MEDICINE | Med School: UNIVERSITY OF MIAMI LEONARD M MILLER SCHOOL OF MEDICINE | ||
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Mark Andrew Walshauser
Medical Specialties
Dr. Mark Andrew Walshauser has the following specialty
Specialty Expertise
Dr. Mark Andrew Walshauser has the following 8 areas of expertise
Certifications, License, & Education
20 Years Experience
Dr. Mark Andrew Walshauser holds an expired medical license in the state of Illinois.
Medical License
Medical Doctor with an expired medical license in the state of Illinois that expired in 2026.
Education & Training
Residency
Completed their residency at St Louis University School Of Medicine.
Medical School
Graduated from ROSS UNIVERSITY SCHOOL OF MEDICINE in 2007 and Ross University School Of Medicine in 2006.
NPI Number
Dr. Walshauser's NPI number is 1306020664.
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Frequently Asked Questions
- Is Dr. Mark Walshauser accepting new patients?
- Dr. Mark Walshauser is accepting new patients on Vitals. View Dr. Mark Walshauser's profile on Vitals to make an appointment.
- How can I make an appointment with Dr. Mark Walshauser?
- You can find contact information for Dr. Mark Walshauser here on Vitals.
- Does Dr. Mark Walshauser accept my insurance?
- You can see the insurance plans that Dr. Mark Walshauser accepts on their Vitals profile.
- Which hospitals is Dr. Mark Walshauser affiliated with?
- Dr. Mark Walshauser is affiliated with Hshs Saint Elizabeths Hospital, Hshs Saint Josephs Hospital Highland, Sparta Community Hospital, Memorial Hospital Shiloh, Hshs Saint Josephs Hospital Breese, and HSHS HOLY FAMILY HOSPITAL.
- Where is Dr. Mark Walshauser's office located?
- Dr. Mark Walshauser's office is located at 321 Regency Park, O Fallon, IL, 62269.
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