Dr. Mark Sundermeyer
- Gender: Male
- Experience: 21 years
- Graduated from: University Of Missouri, Columbia School Of Medicine
- Graduation year: 2000
- Sole propriator: No
- NPI: 1386690337
Dr. Mark Sundermeyer M.D.
Hematology and Oncology Specialist
He is located at 4921 Parkview Place Div Im Medical Oncology, Ste 7A, 7B, 7C in Saint Louis, MO 63110. Can help patients with the following: Bone Cancer, Cystitis, High Blood Pressure, Neutropenia, Non-Hodgkin's Lymphoma (NHL), Pernicious Anemia. His National Provider Identifier (NPI) number is 1386690337. Appointment can be made via the phone number (800) 647-2098. He is affiliated with 1 practices and 4 hospitals.
Conditions treated
Dr. Mark L. Sundermeyer, being an hematology and oncology specialist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. Mark Sundermeyer.
- Abdominal Pain
- Acute Pain
- Anemia
- Arthritis
- Asthma
- Atherosclerosis
- Beta Thalassemia
- Bladder Control
- Bone Cancer
- Cancer
- Chest Pain
- Cholecystitis
- Chronic Obstructive Pulmonary Disease (COPD)
- Common Cold
- Constipation
- Cystitis
- Deep Vein Thrombosis (DVT)
- Diarrhea
- Edema
- Fever
- Gastroesophageal Reflux Disease (GERD)
- General Care
- Headache
- Heart Disease
- Hemophilia
- Hiatal Hernia
- High Blood Pressure
- Hodgkin's Disease
- Hot Flashes
- Hyperlipidemia
- Hyponatremia
- Idiopathic Thrombocytopenic Purpura (ITP)
- Influenza
- Inguinal Hernia
- Leukemia
- Migraine
- Multiple Myeloma
- Nausea and Vomiting
- Neutropenia
- Non-Hodgkin's Lymphoma (NHL)
- Obesity
- Osteoporosis
- Peptic Ulcer
- Pernicious Anemia
- Polycythemia
- Prescription Refill
- Pulmonary Embolism (PE)
- Sickle Cell Anemia
- Thalassemia
- Thrombocytopenia
- Urethritis
- Urinary Tract Infection (UTI)
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Mark Sundermeyer as in-network for the following 2026 plans.
Health plans
Cox HealthPlans
Network data as of Sep 11, 2026, as reported by the insurer.
Show all 7 plans from Cox HealthPlans
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Cox HealthPlans Bronze Expanded Standard | EPO · Expanded Bronze | EPO | Accepting new patients |
| Cox HealthPlans Bronze Preferred | EPO · Bronze | EPO | Accepting new patients |
| Cox HealthPlans Gold Preferred | EPO · Gold | EPO | Accepting new patients |
| Cox HealthPlans Gold Standard | EPO · Gold | EPO | Accepting new patients |
| Cox HealthPlans Silver Connect | EPO · Silver | EPO | Accepting new patients |
| Cox HealthPlans Silver Preferred | EPO · Silver | EPO | Accepting new patients |
| Cox HealthPlans Silver Standard | EPO · Silver | EPO | Accepting new patients |
UnitedHealthcare
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 13 plans from UnitedHealthcare
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| UHC Bronze Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, No Referrals) | EPO · Expanded Bronze | Non Preferred | Accepting new patients |
| UHC Bronze Essential (No Referrals) | EPO · Bronze | Non Preferred | Accepting new patients |
| UHC Bronze Standard (No Referrals) | EPO · Expanded Bronze | Non Preferred | Accepting new patients |
| UHC Bronze Standard+ (Dental + Vision, No Referrals) | EPO · Expanded Bronze | Non Preferred | Accepting new patients |
| UHC Gold Advantage ($0 Virtual Urgent Care, No Referrals) | EPO · Gold | Non Preferred | Accepting new patients |
| UHC Gold Advantage+ ($0 Virtual Urgent Care, Dental + Vision, No Referrals) | EPO · Gold | Non Preferred | Accepting new patients |
| UHC Gold Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, $8 Tier 2 Rx, No Referrals) | EPO · Gold | Non Preferred | Accepting new patients |
| UHC Gold Standard (No Referrals) | EPO · Gold | Non Preferred | Accepting new patients |
| UHC Silver Advantage ($0 Virtual Urgent Care, No Referrals) | EPO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Advantage+ ($0 Virtual Urgent Care, Dental + Vision, No Referrals) | EPO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, No Referrals) | EPO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Standard (No Referrals) | EPO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Standard+ (Dental + Vision, No Referrals) | EPO · Silver | Non Preferred | Accepting new patients |
This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Dr. Mark Sundermeyer is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.
Medicare Enrollment
Dr. Mark Sundermeyer is enrolled to bill Medicare as a Practitioner - Medical Oncology (also registered under: Practitioner - Hematology/oncology, Practitioner - Hematology) .
Bills through: Columbia Lutheran Charities
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Payments received
Drug payment
| Foundation Medicine | $59 |
| Janssen | $24 |
| Medivation | $21 |
Other
| Food and Beverage | $135 |
Studies
UNIVERSITY OF MISSOURI, COLUMBIA SCHOOL OF MEDICINE
Graduated in 2000Additional Specialities
- Internist
Affiliated hospitals
Looking for more Hematology and Oncology Specialists?
Out of the 48 hematology and oncology specialists in this region, here are 10 randomly selected ones for you to explore.
- Gender: Male
- Address: 3655 Vista Avenue Saint Louis, 63110, MO
- Gender: Male
- Address: Suite 14C 4921 Parkview Place Saint Louis, 63110, MO
- Gender: Male
- Address: 3655 Vista Avenue Saint Louis, 63110, MO
- Gender: Male
- Address: 3015 North Ballas Road Saint Louis, 63131, MO
- Gender: Female
- Address: Div Ped Hematology And Onc, Ste 9S 1 Childrens Place Saint Louis, 63110, MO
- Gender: Male
- Address: Box 8056 660 South Euclid Avenue Saint Louis, 63110, MO
- Gender: Male
- Address: 12902 Usf Magnolia Drive Tampa, 33612, FL
- Gender: Male
- Address: 675 North Saint Clair Street Suite 21-100 Chicago, 60611, IL
- Gender: Male
- Address: 1 Barnes Jewish Hospital Plaza Saint Louis, 63110, MO
- Gender: Female
- Address: Div Ped Hematology & Onc, Ste 9S 1 Childrens Place Saint Louis, 63110, MO
Questions & Answers
What conditions does Dr. Mark L. Sundermeyer treat?
Dr. Mark L. Sundermeyer provides treatment for Bone Cancer, Cystitis, High Blood Pressure, Neutropenia, Non-Hodgkin's Lymphoma (NHL), Pernicious Anemia. For the full list see this list.
Does Dr. Mark L. Sundermeyer accept patients with UnitedHealthcare?
Yes, Dr. Mark L. Sundermeyer is listed in-network for UnitedHealthcare through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.
Does Dr. Mark L. Sundermeyer have affiliation with practices?
Dr. Mark L. Sundermeyer is affiliated with Jefferson Health Hospice.
Where can you meet with Dr. Mark L. Sundermeyer?
Dr. Mark L. Sundermeyer's office is located at 4921 Parkview Place Div Im Medical Oncology, Ste 7A, 7B, 7C in Saint Louis, MO 63110.
Has Dr. Mark L. Sundermeyer affiliation with hospitals?
Dr. Mark L. Sundermeyer is affiliated with COLUMBIA MEMORIAL HOSPITAL. For the full list of hospitals see this list.