Important Provider & Location Information

The new Ridley-Tree Cancer Center in Santa Barbara opened in September 2018.


The main entrance of the new building is located at 540 W. Pueblo Street, two blocks from Sansum Clinic and Santa Barbara Cottage Hospital. 
540 W. Pueblo Street
Santa Barbara, CA 93105


We encourage you to use valet parking, which is available to all patients and visitors free of charge; if you choose to self-park in the garage there are elevators to assist you. 

Volunteer Greeters

Our volunteer staff located at the main lobby entrance will be available to help you find your way to your appointment; and our concierge in the main lobby will be available to answer any questions you may have.

Phone Numbers

Medical Oncology & Hematology (805) 879-0670
Radiation Oncology (805) 879-0650
Surgical Oncology (805) 879-0680

Medical Oncology & Hematology

The Medical Oncology & Hematology department at 317 W. Pueblo Street relocated to 540 W. Pueblo Street in September 2018. The following providers now work at 540 W. Pueblo Street:

Mark Abate, MD
Mukul Gupta, MD
Ryan F. Kendle, MD
Gregg Newman, MD
Julie Taguchi, MD
Hangama Abassi, NP, OCN
Marissa Piacenti, PA-C
Daniel Greenwald, MD
Frederic C. Kass, MD
Novejot (Neetu) K. Sekhon, MD
Amanda Sweet, PA-C

Radiation Oncology

The Radiation Oncology department at 300 W. Pueblo Street relocated to 540 W. Pueblo Street. The following providers now work at 540 W. Pueblo Street:

Lindsay H. Blount, MD
George Cheng, MD, PhD
Shane Cotter, MD, PhD
W. Warren Suh, MD, MPH, FACR

Nuclear Medicine

David Carlson, MD and William M. Pace, MD will remain in the Nuclear Medicine department at 300 W. Pueblo Street. The Nuclear Medicine department will adopt the Ridley-Tree Cancer Center name and logo.  

300 W. Pueblo Street
Santa Barbara, CA 93105
Nuclear Medicine (805) 563-5896

Solvang Medical Oncology

Our providers in Solvang have the same expert physicians and compassionate staff, while adopting the new Ridley-Tree Cancer Center name and logo.

Juliet Penn, MD
Thomas B. Woliver, MD 

2040 Viborg Road, Suite 140
Solvang, CA 93463
(805) 686-5370