Rex Pillai, M.D.

Rex M. Pillai, M.D.


Adult and Pediatric Interventional Radiology

Diagnostic Radiology

Pediatric Radiology




  • Assistant Clinical Professor, Division of Interventional Radiology


To see if Rex M. Pillai is accepting new patients, or for assistance finding a UC Davis doctor, please call 800-2-UCDAVIS (800-282-3284).

Lawrence J. Ellison Ambulatory Care Center

4860 Y St., Suite 3100
Sacramento, CA 95817
Driving Directions

Primary Phone:

Additional Phone Numbers

Phone: 916-703-2177
Phone: 916-734-7809
Clinic Phone: 916-734-3606
Clinic Fax: 916-734-8490
Physician Referrals: 800-4-UCDAVIS (800-482-3284)

Social Networking


Philosophy of Care

Patients and their physicians turn to me to assist in the care of complex medical problems using the safe, minimally-invasive and innovative technologies the field of interventional radiology is built upon. I strive to provide individualized care to each of my patients based on the latest scientific evidence, practice experience from training at some of the nations' top institutions, and above all, their specific needs.

As an image-guided specialist, my patients are offered targeted, minimally-invasive, therapeutic options for diseases that have historically been untreatable or required extensive and morbid surgical operations.

Clinical Interests

Rex Pillai, M.D., assistant clinical professor, is a minimally-invasive vascular and image-guided specialist performing diagnostic and interventional procedures for adult and pediatric patients. He has expertise in tumour-directed arterial therapy (chemo and radioembolization), tumor ablation and high-intensity focused ultrasound therapies focusing on liver, kidney, lung, soft tissue and bone cancers.

He treats female patients with symptomatic fibroids (uterine fibroid embolization) and pelvic congestion syndrome as well as male patients with varicoceles.

His specialized clinical interests also include the treatment of vascular and lymphatic malformations, acute and chronic deep venous thromboembolic disease (DVT), complex IVC filter retrievals as well as pediatric percutaneous and endovascular image-guided interventions.

Research/Academic Interests

Dr. Pillai's research interests include application of high-intensity focused ultrasound in treating pediatric solid-organ tumors, novel treatments for vascular malformations, evaluating treatment methodologies and responses of hepatic tumours to radioembolization and biomedical device development. 


Vascular and Interventional Radiology

Center/Program Affiliation

Vascular Center
UC Davis Children's Hospital


M.D., Ross University School of Medicine, Iselin NJ & Portsmouth WI 2009

B.Sc., University of British Columbia, Vancouver, Canada 2004

Internship: General Surgery, Mount Sinai School of Medicine, New York NY 2009-2010


Diagnostic Radiology, Mount Sinai School of Medicine, New York NY 2010-2014


Vascular & Interventional Radiology, The Cleveland Clinic, Cleveland OH 2015-2016

Pediatric Imaging and Interventional Radiology, UC Los Angeles Medical Center, Los Angeles CA 2014-2015

Board Certifications

American Board of Radiology, Diagnostic Radiology,

American Board of Radiology, Interventional Radiology,

American Board of Radiology, Pediatric Radiology,

Professional Memberships

American College of Radiology

Radiological Society of North America

Society of Interventional Radiology

Society of Pediatric Interventional Radiology

Western Angiographic and Interventional Society

Honors and Awards

Research Award, UCLA Medical Center, 2015

Research Scholar Award, American Gastroenterology Association, 2005

Select Recent Publications

Roudsari B, Said M, Vu C, Pillai R. Evaluation of Statewide Variability in the Current Role of Different Specialties in Lower Extremity Endovascular Revascularization for Medicare Beneficiaries. J Vasc Interv Radiol. 2019 Feb;30(2):250-256.e1. doi:10.1016/j.jvir.2018.10.029. PMID:30717959.

Soosman S, Roudsari B, Ghosh S, Vu C, Perez R, Pillai R. Hemodialysis Reliable Outflow (HeRO) Graft Patency and Infection Rates: A retrospective Single Institution Experience (accepted by International Symposium of Endovascular Therapy, 2018)

Pillai, R, Roudsari, B Making a case for more IR residency positions: Comparing qualifications of medical students applying to IR/DR residencies to NRMP DR match data (accepted by Society of Interventional Radiology, 2018)

Pillai R, Kapoor B. Management of Complications of Portal Hypertension: Special Considerations. In: Kapoor B, Madoff C, editors. Digestive Disease Interventions, First edition. Thieme, New York, NY. 2017. In print.

Truscott L, Gell J, Chang VY, Lee H, Strom SP, Pillai R, Sisk A, Martinez-Agosto JA, Anderson M, Federman N. Novel association of familial testicular germ cell tumor and autosomal dominant polycystic kidney disease with PKD1 mutation. Pediatr Blood Cancer. 2017 Jan;64(1):100-102. doi:10.1002/pbc.26197. Epub 2016 Aug 31. PMID:27577987.

Pillai R, McLennan G, Martin C 3rd. The makings of an ideal interventional radiology clinical clerkship: Survey results of medical students and interventional radiology educators to improve medical student training in preparation for the IR/DR residency (accepted by Society of Interventional Radiology, 2016)

Martin C 3rd, Pillai R. Dialysis Access Anatomy and Interventions: A Primer. Semin Intervent Radiol. 2016 Mar;33(1):52-5. doi:10.1055/s-0036-1578811. PMID:27011428.

Pillai R, Ghahrehmani S. Utilizing T2* MRI as an alternative to percutaneous biopsy in assessing hepatic iron concentration in pediatric patients with hemochromatosis (accepted by Society of Computed Body Tomography and Magnetic Resonance, 2015)

The Role of Imaging in the Management of Foreign Bodies. (2015 Annual Meeting, Society of Pediatric Radiology)

Assi K, Pillai R, Gómez-Muñoz A, Owen D, Salh B. The specific JNK inhibitor SP600125 targets tumour necrosis factor-alpha production and epithelial cell apoptosis in acute murine colitis. Immunology. 2006 May;118(1):112-21. doi:10.1111/j.1365-2567.2006.02349.x. PMID:16630028.