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Clinical Oncology Team

The Clinical Oncology Team at the Flint Animal Cancer Center is made up of veterinarians who specialize in medical, surgical and radiation oncology, a full nursing staff, residents, a surgical oncology fellow and a clinical trials team. Our team's goal is to provide the most advanced and compassionate care to your pet.

Team Members

Medical Oncologists:

Rodney Page, DVM, Diplomate, ACVIM (Oncology)

Susan Lana, DVM, MS Diplomate ACVIM (Oncology)
Clinical Oncology Service Chief

Douglas Thamm, VMD, Diplomate ACVIM (Oncology)

Barbara Biller, DVM, PhD, Diplomate ACVIM (Oncology)

Surgical Oncologists:

Stephen Withrow, DVM, Diplomate ACVS, ACVIM (Oncology)

Nicole Ehrhart, VMD, Diplomate ACVS

Deanna Worley, DVM, Diplomate ACVS

Bernard Séguin, DVM, MS, Diplomate ACVS

Radiation Oncologists:

Susan LaRue, DVM, PhD, Diplomate ACVS, ACVR (Radiation Oncology)

Keara Boss, DVM PhD, Diplomate ACVR (Radiation Oncology)


Rebecca Packer, DVM, MS, Diplomate ACVIM (Neurology)

Clinical Trials Team:
Our oncologists, nurses and
residents are also clinical
trials team members.

Kristen Weishaar, DVM, MS, Diplomate ACVIM (Oncology), Clinical Trials Director

Lisa Brownlee, DVM, Diplomate ACVIM (Internal Medicine), Trials Veterinarian

Kara Hall, CVT, Trials Nurse

Nikki Roatch, Trials Coordinator

Irene Mok, Tissue Archiving

Diagnostic Imaging of Cancer:
VDI Section Faculty

Lynn Griffin, DVM, MS, Diplomate ACVR (Radiation Oncology)

Linda Lang, DVM, Diplomate ACVR (Radiology)

Angela Marolf, DVM, Diplomate ACVR (Radiology)

Elissa Randall, DVM, Diplomate ACVR (Radiology)

Radiation Oncology Resident:

Benoit Clerc-Renaud, DVM

Carolynne Kruckman, DVM

Tiffany Wormhoudt, DVM

Radiation Therapy Technicians:

Sarah Bruns

Wendy Mullins, CVT

Medical Oncology Residents:

Jacob Cawley, DVM

Monica Fernandez, DVM

Annie Galloway, DVM

Brittany Wittenberns, DVM

Amber L. Wolf-Ringwall, PhD, DVM 

Medical Oncology Intern:

Sunny Kao, DVM

Surgical Oncology Fellow Candidate:

Ruth Rose, DVM, DACVS

Brandan Wustefeld-Janssens, BVSc, DipECVS, Fellow Candidate Surgical Oncology, Lucy Oncology Scholar

Veterinary Oncology Nurses:

Elizabeth Atencio, Supervisor

Terri Bluhm, CVT

Lindsay Carroll, CVT

Mary Lafferty, CVT

Alexa Pickles, CVT

Lisa Regan, CVT

Deanna Williams, CVT

Client Coordinator:

Sandra Larson

Argus Institute
(Client Communication and Grief Specialists):

Erin Allen, MSSW, LSW

Gail Bishop, BS

Maria Gore, MSW