At Marshfield Clinic, the right doctor is easy to find.

Each of our doctors is committed to a compassionate, patient-first philosophy to ensure you and your loved ones receive the best, most comprehensive care possible.

Medical Professionals

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Doctors
Ratings & Patient Satisfaction
Primary Care
New Doctors
All Specialists

Ratings & Patient Satisfaction

set of 5 stars in a row

We are now displaying star ratings on provider profiles. Marshfield Clinic partners with Press Ganey, a leading patient experience survey vendor, to regularly evaluate and improve care. Having access to this information can help you choose a provider who meets your health care needs.

Learn about our ratings >

Primary Care

Family Medicine

Family Medicine providers specialize in caring for family members of all ages by emphasizing disease prevention and promoting healthy lifestyles.

Family Medicine Physicians and Staff

Internal Medicine

Internal Medicine providers focus on preventive
and primary care services for adults.

Internal Medicine Physicians and Staff

Pediatrics

Pediatricians care for children from infancy through adolescence. They teach healthy habits that a person can carry through a lifetime.

Pediatricians and Pediatrics Staff

Med/Peds

Internal Medicine-Pediatrics physicians are trained to care for adults, children and adolescents.

Med/Peds Physicians and Staff

New Doctors

Brian D. Nelson, MD
Cardiology - Interventional
Sees patients at:
Weston Center

“I’m passionate about saving patients’ lives and limbs.”
Paula A. Aston, MD
Neurology
Sees patients at:
Marshfield Center

“My philosophy is that you have to treat the whole person.”
Jennifer A. Barden, PT, CSCS
Physical Therapy
Sees patients at:
Stettin Center

“I will go out of my way for my patients, listening to them and finding the answers they need. I’m passionate about helping people.”

Jamie Peterson, MD
Pediatrics
Sees patients at:
Wausau Center

"I’ve always loved children, and feel passionate about building good relationships with my young patients and their families."
Jaren Thomas, MD
Internal Medicine
Sees patients at:
Wausau Center

“I take the time to listen to my patients, and am an active proponent of letting them fully participate in their own care.””
Sueyi Lai, MD
Oncology / Hematology
Sees patients at:
Minocqua Center

“To work and live in such a friendly community and to be so close to nature is such a privilege.”

At Marshfield Clinic, the right doctor is easy to find.

Each of our doctors is committed to a compassionate, patient-first philosophy to ensure you and your loved ones receive the best, most comprehensive care possible.

Medical Professionals

Find a Doctor

Browse Alphabetically

Ratings & Patient Satisfaction

Primary Care

Family Medicine

Internal Medicine

Pediatrics

Med/Peds

New Doctors

Brian D. Nelson, MD
Cardiology - Interventional
Sees patients at:
Weston Center

Paula A. Aston, MD
Neurology
Sees patients at:
Marshfield Center

Jennifer A. Barden, PT, CSCS
Physical Therapy
Sees patients at:
Stettin Center

Jamie Peterson, MD
Pediatrics
Sees patients at:
Wausau Center

Jaren Thomas, MD
Internal Medicine
Sees patients at:
Wausau Center

Sueyi Lai, MD
Oncology / Hematology
Sees patients at:
Minocqua Center

All Specialists

About Us

Our System

Access your account

At Marshfield Clinic, the right doctor is easy to find.​

Each of our doctors is committed to a compassionate, patient-first philosophy to ensure you and your loved ones receive the best, most comprehensive care possible.​​​

​Medical Professionals​​​​​​​​​​

Find a Doctor​​​​​​​​

Browse Alphabetically

Ratings & Patient Satisfaction

Primary Care

Family Medicine

Internal Medicine

Pediatrics

Med/Peds

New Doctors

Brian D. Nelson, MDCardiology - Interventional Sees patients at: Weston Center

Paula A. Aston, MD Neurology Sees patients at: Marshfield Center

Jennifer A. Barden, PT, CSCS Physical Therapy Sees patients at: Stettin Center

Jamie Peterson, MD Pediatrics Sees patients at: Wausau Center

Jaren Thomas, MD Internal Medicine Sees patients at: Wausau Center

Sueyi Lai, MDOncology / Hematology Sees patients at: Minocqua Center

All Specialists

About Us

Our System

Access your account

At Marshfield Clinic, the right doctor is easy to find.

Each of our doctors is committed to a compassionate, patient-first philosophy to ensure you and your loved ones receive the best, most comprehensive care possible.

Medical Professionals

Find a Doctor

Brian D. Nelson, MD
Cardiology - Interventional
Sees patients at:
Weston Center

Paula A. Aston, MD
Neurology
Sees patients at:
Marshfield Center

Jennifer A. Barden, PT, CSCS
Physical Therapy
Sees patients at:
Stettin Center

Jamie Peterson, MD
Pediatrics
Sees patients at:
Wausau Center

Jaren Thomas, MD
Internal Medicine
Sees patients at:
Wausau Center

Sueyi Lai, MD
Oncology / Hematology
Sees patients at:
Minocqua Center