
Overview
Riann S. Collar, PA, is a physician assistant specializing in oncology at Ascension Wisconsin in Appleton, WI. She listens to understand you and your health concerns, taking the time to get to know you and your family's health history and create a personalized care plan that's right for you. As a physician assistant, Riann can diagnose illness and injury, prescribe medication and provide non-surgical care.
Her clinical expertise encompasses HER2 Negative Breast Cancer, BRCA Positive Breast Cancer, and DICER1 Syndrome.
Collar, PA is board certified in National Commission On Certification Of Physician Assistants - Physician Assistant - Certified (PA-C). Collar, PA is currently accepting new patients.
Specialties
Licenses
Board Certifications
Hospital Affiliations
Languages Spoken
Gender
Insurance
Accepted insurance can change. Please verify directly with the provider.
Accepted insurance plans:
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- PPO
- HMO
- INDEMNITY
- POS
- PPO
- OTHER MEDICAID
- STATE MEDICAID
- HMO
- EPO
- HMO
- POS
- PPO
- EPO
- PPO
- EPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- MEDICARE-MEDICAID PLAN
- OTHER MEDICARE
- OTHER MEDICARE PART D
Locations
1611 S Madison St, Appleton, WI 54915
500 S Oakwood Rd, Oshkosh, WI 54904
Ascension NE Wisconsin - St. Elizabeth Cancer Center
Alexander Starr, MD, is a board-certified, independent oncologist with Ascension Wisconsin in Appleton, WI. Dr. Starr diagnoses and treats cancer using medications, such as chemotherapy, immunotherapy and targeted therapies. With our multispecialty approach to care, Dr. Starr works with a team of cancer specialists to deliver comprehensive, compassionate care. Dr. Starr is highly rated in 27 conditions, according to our data. His clinical expertise encompasses Colorectal Cancer, Familial Colorectal Cancer, Myelodysplastic Syndrome (MDS), Lung Cancer, and Bone Marrow Aspiration. Dr. Starr is board certified in The American Board Of Internal Medicine - Medical Oncology. Dr. Starr is currently accepting new patients.
ThedaCare Regional Medical Center Appleton Inc
Ryan Engel is an Oncologist and a Hematologist practicing medicine in Appleton, Wisconsin. Dr. Engel is highly rated in 28 conditions, according to our data. His clinical expertise encompasses Lung Cancer, Small Cell Lung Cancer (SCLC), Inflammatory Breast Cancer, and Paget Disease of the Breast. Dr. Engel is board certified in American Board Of Internal Medicine, Hematology, American Board Of Internal Medicine (2007), Internal Medicine, American Board Of Internal Medicine (2003), and Medical Oncology, American Board Of Internal Medicine (2007). Dr. Engel is currently accepting new patients.
ThedaCare Cancer CareNeenah
I believe in treating patients with the same care and respect that I would offer my family members. I recognize the unique challenges and needs each patient faces.What I like most about my job is interacting with patients and their family members. I have a passion for building relationships, providing support, empowering patients, continuous learning and making a meaningful difference in the lives of others.I chose to work in oncology because I enjoy providing both medical expertise and emotional support. I enjoy being there for my patients during challenging times, offering comfort, reassurance and guidance. Dr. Miles is highly rated in 18 conditions, according to our data. Her clinical expertise encompasses Colorectal Cancer, Familial Colorectal Cancer, Paget Disease of the Breast, and Breast Cancer. Dr. Miles is board certified in Medical Oncology, American Board Of Internal Medicine (2013) and Internal Medicine, American Board Of Internal Medicine (2007). Dr. Miles is currently accepting new patients.
Frequently Asked Questions about Riann S. Collar, PA
How do I make an appointment with Riann S. Collar, PA?
You can book an appointment with Riann S. Collar, PA by calling their office at 920-738-2000. MediFind provides direct contact information so you can schedule visits, second opinions, or consultations without navigating third-party calendars.
Is Riann S. Collar, PA a top-rated expert for HER2 Negative Breast Cancer?
MediFind is an objective health platform that identifies experts based on real-world data. Riann S. Collar, PA is classified as an Experienced expert for HER2 Negative Breast Cancer, meaning they are among the top experts in the country for this condition. This ranking is based on their volume of patients, published research, and peer connections.
What conditions does Riann S. Collar, PA specialize in?
While Riann S. Collar, PA is a Physician Assistant, they have specific expertise in HER2 Negative Breast Cancer, BRCA Positive Breast Cancer, and DICER1 Syndrome. MediFind analyzes a doctor's articles and referral patterns to identify their specific areas of focus within Physician Assistant.
Does Riann S. Collar, PA accept my insurance?
Riann S. Collar, PA accepts most major insurance plans, including Aetna and Anthem BCBS. We recommend calling the office directly at 920-738-2000 to verify that your specific plan is currently accepted before your visit.
Areas of Expertise
MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.
Learn more about MediFind’s expert tiers
- Experienced
- BRCA Positive Breast CancerCollar, PA isExperienced. Learn about BRCA Positive Breast Cancer.
- DICER1 SyndromeCollar, PA isExperienced. Learn about DICER1 Syndrome.
- HER2 Negative Breast CancerCollar, PA isExperienced. Learn about HER2 Negative Breast Cancer.

