Dr. Karen Gremminger, MD

Medical OncologyFemaleAge 54

Dr. Gremminger

Fox Valley Hematology Oncology

2700 W 9th Ave Ste 11 Oshkosh, WI 54904

Make an Appointment

(920) 236-1555

Dr. Karen Gremminger, MD is a Medical Oncology Specialist in Oshkosh, WI and has over 30 years of experience in the medical field. She graduated from Texas Tech University School of Medicine medical school in 1991. She is affiliated with medical facilities such as Ascension Northeast Wisconsin Mercy and Ascension Northeast Wisconsin Saint Elizabeth. Be sure to call ahead with Dr. Gremminger to book an appointment.

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Hospital Highlight

Dr. Gremminger is affiliated with Thedacare Regional Medical Center Neenah Neenah, a highly rated hospital.

At a Glance

  • Friendly Staff
    Patients said the staff was friendly. See reviews
  • Practices at Top Hospital
    Patient Safety Excellence Award™ See hospitals
  • Hospital Satisfaction
    Patients said they were highly satisfied at this doctor's hospital. See hospitals

Experience and Background Checks

Experience
Background

Background Check

Healthgrades does not collect malpractice claims information for Wisconsin
No disciplinary actions found for the years we collect data
No board actions found for the years we collect data
Learn more about background checks

Experience Check

Check Dr. Gremminger's experience treating your condition or procedure

Dr. Gremminger's Top Procedures and Conditions

Treatment Frequency
Blood Disorders
very high
very high

Treatment Frequency

Dr. Gremminger treats Blood Disorders more than 94% of her peers

Dr. Gremminger treats this condition more than 94% of her peers

Breast Diseases
very high
very high

Treatment Frequency

Dr. Gremminger treats Breast Diseases more than 94% of her peers

Dr. Gremminger treats this condition more than 94% of her peers

Anemia
very high
very high

Treatment Frequency

Dr. Gremminger treats Anemia more than 90% of her peers

Dr. Gremminger treats this condition more than 90% of her peers

Rating Includes other areas of care:

  • Acquired Aplastic Anemia
  • Anemia of Pregnancy
  • Aplastic Anemia
  • Atypical Hemolytic Uremic Syndrome
  • Autoimmune Hemolytic Anemia (AIHA)
  • Chronic Anemia
  • Cold Autoimmune Hemolytic Anemia
  • D-Negative Hemolytic Uremic Syndrome (D - HUS)
  • D-Negative Hemolytic Uremic Syndrome, Pregnancy Related
  • D-Positive Hemolytic Uremic Syndrome (D + HUS)
  • Diamond-Blackfan Anemia
  • Hemolytic Anemia, Acquired Autoimmune
  • Hemolytic Uremic Syndrome
  • Hereditary Spherocytosis
  • Iron Deficiency Anemia
  • Megaloblastic Anemia
  • Microcytic Hypochromic Anemia
  • Myelpathic Anemia
  • Neonatal Anemia
  • Nutritional Anemia
  • Nutritional Sideroblastic Anemia
  • Pernicious Anemia
  • Refractory Anemia With Excess Blasts
  • Refractory Anemia With Excess Blasts-1
  • Refractory Anemia With Excess Blasts-2
  • Secondary Cold Autoimmune Hemolytic Anemia
  • Sideroblastic Anemia
  • Sideroblastic Anemia With Spinocerebellar Ataxia
  • Sideroblastic Anemia, Pyridoxine-Responsive, Autosomal Recessive
  • Warm Autoimmune Hemolytic Anemia
Hide other areas of care

Dr. Gremminger's conditions and procedures:

  • Acute Leukemia
  • Acute Myeloid Leukemia
  • Adrenal Gland Cancer
  • All Lymphoma
  • Anal and Rectal Cancer
  • Anal Disorders
  • Anemia
  • Autoimmune Diseases
  • Basal Cell Carcinoma
  • Bile Duct Cancer
  • Bladder Cancer
  • Bleeding Disorders
  • Blood Disorders
  • Bone Cancer
  • Bone Disorders
  • Bone Marrow Biopsy
  • Brain and Nervous System Cancer (incl. Gliomas, Astrocytoma, Schwannoma, Medulloblastoma, Chordoma)
  • Brain Cancer
  • Brain Disorders
  • Breast Cancer
  • Breast Diseases
  • Burkitt's Lymphoma
  • Cancer
  • Central Nervous System Lymphoma
  • Cervical Cancer
  • Cholangiocarcinoma
  • Chronic Lymphocytic Leukemia
  • Chronic Myeloid Leukemia (CML)
  • Coagulation Disorders (incl. Hemophilia)
  • Colorectal Cancer
  • Esophageal Cancer
  • Esophageal Diseases
  • Fallopian Tube Cancer
  • Gallbladder and Biliary Tract Cancer
  • Gastrointestinal Diseases
  • Graft vs Host Disease
  • Gynecologic Cancer
  • Head and Neck Cancer
  • Hodgkin's Disease
  • Hypercoagulable State
  • Immune Thrombocytopenic Purpura (ITP)
  • Kidney Cancer
  • Larynx Conditions
  • Leukocytosis
  • Liver Cancer
  • Lung Cancer
  • Lymphocytosis
  • Lymphoma, Large Cell, Anaplastic
  • Lymphoma, Large-Cell
  • Lymphosarcoma
  • Macroglobulinemia (incl. Waldenstrom's )
  • Mantle Cell Lymphoma
  • Marginal Zone Lymphoma
  • Mediastinal Tumors, Malignant
  • Melanoma
  • Multiple Myeloma
  • Mycosis Fungoides
  • Myelodysplastic Syndromes
  • Myeloma
  • Myeloproliferative Disorders
  • Neuroendocrine Tumors
  • Neutropenia
  • Nodular Lymphoma
  • Non-Hodgkin's Lymphoma
  • Oral Cancer
  • Osteosarcoma
  • Ovarian Cancer
  • Pancreatic Cancer
  • Pancytopenia
  • Pleura Cancer
  • Pleural Cancer
  • Polycythemia Rubra Vera
  • Pregnancy-Related Disorders
  • Primary Central Nervous System Lymphoma
  • Primary Hypercoagulable State (incl. Factor V Leiden Disease)
  • Prostate Cancer
  • Pulmonary Disease
  • Purpura
  • Reticulosarcoma
  • Retina Diseases
  • Salivary Gland Cancer
  • Secondary Hypertension
  • Secondary Malignancies
  • Skin Cancer
  • Small Intestine Cancer
  • Soft Tissue Sarcoma
  • Squamous Cell Carcinoma
  • Stomach and Small Intestine Cancer
  • Stomach Cancer
  • Stomach Diseases
  • Testicular Cancer
  • Thalassemia
  • Thoracentesis
  • Throat Cancer (Hypopharyngeal)
  • Throat Cancer (Nasopharyngeal)
  • Thrombocytosis
  • Thyroid Cancer
  • Tongue Cancer
  • Tonsil Cancer
  • Urinary Disorders
  • Uterine Cancer
  • Uterine Diseases
  • Vascular Disease

Insurance Check

Search for your insurance provider

Dr. Gremminger accepts

Accepted insurance can change. Please double-check when making an appointment.

(920) 236-1555

Dr. Gremminger accepts the following insurance:

Humana
Choice Care PPO

Dr. Gremminger's Reviews

Likelihood to recommend Dr. Gremminger

3.6

Based on 13 ratings

5 Stars
61.53846153846154%
(8)
4 Stars
0%
(0)
3 Stars
0%
(0)
2 Stars
15.384615384615385%
(2)
1 Star
23.076923076923077%
(3)
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How likely are you to recommend
Dr. Gremminger
(Select your rating)
What went well
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What could be improved
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RecentHighestLowestMost Helpful
Dr Gremmingers would not give up me asI had lung and bladder cancer. She keep on trying different cemo treatments until one started to clear up my problem. She litterly saved my life. 10 years free of cancer. Would recommend her to anyone who has a cancer problem. Lp
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Leo Patt in Oshkosh town, WI – Oct 24, 2018
I was so not impressed with her. I've been a cancer patient almost 9 years and regular oncologist moved on from Fox Valley he was an awesome oncologist. And I will not return to Dr. Gremminger I did not feel comfortable or cared or feel reassured in any way shape or form.
What went well
  • Office environment
What could be improved
  • Staff wasn't friendly
  • Appointment was rushed
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Didn't trust the provider's decisions
2 people found this helpful
Helpful
Oshkosh, WI – Sep 22, 2016
I had breast cancer in 2014 and received treatment between oct 2014 through March 2015, with follow up appointments after my chemotherapy. Karen was always very knowledgeable, very understanding and caring. I liked her not only as my Doctor but as a person. I highly recommend her to anyone who needs a good oncologist.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
1 person found this helpful
Helpful
Debra Qualmann in Oshkosh, WI – Jan 29, 2016

Leave a review

How was your experience with Dr. Gremminger?

About Me

Biography

Dr. Karen Gremminger, MD is a Medical Oncology Specialist in Oshkosh, WI and has over 30 years of experience in the medical field. She graduated from...Read more

Specialties

  • Medical Oncology

Board Certifications

Education

1997
University of Utah
Fellowship Hospital
1994
L D S Hospital
Residency Hospital
1992
L D S Hospital
Internship Hospital
1991
Texas Tech University School of Medicine
Medical School
,

Awards

Frequently Asked Questions

Does Dr. Karen Gremminger, MD accept my insurance?

Use the Healthgrades insurance check to verify if Dr. Gremminger accepts your insurance.

What are Dr. Karen Gremminger, MD's top areas of care?

Dr. Gremminger frequently treats Blood Disorders, Breast Diseases, and Anemia. See all procedures and conditions Dr. Gremminger treats.

Where is Dr. Karen Gremminger, MD's office located?

Dr. Gremminger's office is located at 2700 W 9th Ave Ste 11, Oshkosh, WI 54904. Find other locations and directions on Healthgrades.

Does Dr. Karen Gremminger, MD offer telehealth services?

Dr. Gremminger has not yet indicated whether they offer telehealth services. Please contact the office to check for availability/eligibility.

How can I make an appointment with Dr. Karen Gremminger, MD?

Find contact information here to make an appointment.

Locations

Fox Valley Hematology Oncology

Fox Valley Hematology Oncology2700 W 9th Ave Ste 11 Oshkosh, WI 54904
1

Affiliated Hospitals

Dr. Gremminger is affiliated with the following hospitals. Select a hospital below to learn more.

Learn more about how Healthgrades measuresHospital Quality.

Ascension Northeast Wisconsin Mercy

Oshkosh, WI

2 Awards Received

Award Highlight: Outstanding Patient Experience Award™ (2019)

Ascension Northeast Wisconsin Saint Elizabeth

Appleton, WI

78% Patient Experience Rating, 9% higher than the national average

2 Awards Received

Thedacare Medical Center Berlin

Berlin, WI

72% Patient Experience Rating, 3% higher than the national average

Thedacare Regional Medical Center Appleton

Appleton, WI

72% Patient Experience Rating, 3% higher than the national average

1 Award Received

Thedacare Regional Medical Center Neenah

Neenah, WI

70% Patient Experience Rating, 1% higher than the national average

1 Award Received

Award Highlight: Patient Safety Excellence Award™ (2021)