Cardinal

Brookfield, Wisconsin Est. 2014

Specialty veterinary care,
around the clock.

Eleven board-certified specialists. Twenty-four-hour emergency. The kind of communication every referring vet wishes they got back from a referral hospital.

  • 11 Board-certified specialists
  • 24/7 Emergency & critical care
  • 2014 Established

Specialties

Six services under one roof.

Every specialist sees patients in the same building, on the same record, with the same imaging suite a hallway away. Referrals from primary-care vets across the North Shore, Waukesha County, and the Lake Country area.

24/7

DACVECC 3 specialists

Emergency & Critical Care

Triage, stabilization, and overnight critical-care monitoring. ICU staffed every hour the doors are open.

DACVS-SA 2 specialists

Surgery

Soft tissue and orthopedic procedures, minimally invasive when the case allows. TPLO, fracture repair, splenectomy, oncologic resection.

DACVIM-O 2 specialists

Oncology

Chemotherapy, immunotherapy, and consultations on radiation referral. Written treatment plans before the first dose, with a copy to your primary vet.

DACVIM-Cardiology 1 specialist

Cardiology

Echocardiography, electrocardiography, and interventional procedures including PDA occlusion and pacemaker implantation.

DACVIM-SAIM 2 specialists

Internal Medicine

Complex diagnostics, endoscopy, immune-mediated disease management. The cases the primary-care chart can no longer answer in a single visit.

DACVR 1 specialist

Imaging

In-house 16-slice CT, 1.5T MRI, and digital ultrasound. Boarded radiologist reads on every study, often same-day.

The team

Eleven specialists, all on staff.

Not a rotating consultant roster. Each specialist works the same building you'd visit, sees their own follow-ups, and answers a phone when a referring vet calls.

Dr. Maya Chen

Dr. Maya Chen

DACVECC Emergency & Critical Care

Residency at UW-Madison Veterinary Care. Clinical lead for the overnight critical-care team. Twelve years in emergency medicine.

Dr. Robert Halloway

Dr. Robert Halloway

DACVS-SA Surgery, Soft Tissue + Orthopedic

Surgical residency at Iowa State. Founded Cardinal in 2014 after eight years as senior surgeon at a Madison referral group. Lectures annually at WVMA.

Dr. Sarah Patel

Dr. Sarah Patel

DACVIM-O Oncology

Oncology fellowship at the University of Pennsylvania. Builds written treatment plans for every patient and sends a copy to the referring vet inside 48 hours.

Dr. David Park

Dr. David Park

DACVIM-Cardiology Cardiology

Cardiology residency at Cornell. Joined Cardinal in 2019. Performs the only interventional cardiac procedures in southeast Wisconsin outside of Madison.

Plus four additional board-certified specialists across internal medicine, imaging, and emergency. Full team →

For referring veterinarians

A referral hospital that answers the phone.

Same-day case discussions. Records back to your office inside 24 hours. The specialist who saw your patient calls you, not an intake coordinator.

  1. 01

    Send the case

    Use the secure web form, fax a packet, or email records to refer@cardinalvet.com. Most cases scheduled inside three business days. Emergency referrals seen the same day.

  2. 02

    Talk to the specialist

    After consultation, the specialist who saw the patient calls you. Written plan delivered the same week, with diagnostic images attached.

  3. 03

    Stay on the case

    You get every recheck note, lab, and image as it comes in. Your patient comes back to you for primary care. We do not poach patients.

A treatment suite at Cardinal Veterinary, prepared for the next case

From the referring community

What primary-care vets say.

The kind of referral hospital you actually want to talk to. I get a phone call from the specialist, not a portal notification. Records back inside 24 hours, every time.

Dr. Anna Whitmore

Whitmore Animal Hospital Mequon

Sent a complex oncology case in 2022. Dr. Patel walked the owner through her plan in writing before the first chemo dose. The patient is still alive three years later. We've been sending referrals to Cardinal ever since.

Dr. James Reilly

Lake Country Veterinary Delafield

Their cardiology service is the only reason we don't have to send patients to Madison anymore. Dr. Park reads echos faster than I can format the referral letter. We've cut our oncology drive time by ninety minutes per case.

Visit

12500 W Capitol Drive, Brookfield.

Off Capitol Drive between Calhoun and Brookfield Roads. Patient parking is the lot at the west entrance. Emergency entrance is at the south side, with a covered bay for unloading.

Emergency
24 hours, 7 days a week
Specialty appointments
Monday to Friday 7:30 to 6:00
Saturday clinics
Cardiology & Oncology By appointment