Urology Group of Southern California
Urology Group of Southern California

Schedule an Appointment


John Kowalczyk, DO, FACOS

Robert Naraghi, MD

Barton Tanenbaum, MD

Joel Abbott, MD

Milan Shah, MD

Brandon Haynes, MD

Sagie De Guzman, ANP-C

Sara Minsavage, PA-C


Office Locations


Downtown L.A.:

1127 Wilshire Blvd, Suite 805

Los Angeles, CA 90017

Tel: (213) 977-1176

Fax: (213) 977-0668



1500 S. Central Ave., Suite 200A
Glendale, CA  91204

(Monday PM, Weds. PM & Friday PM)


Contact & Appointments

Please call our office at

(213) 977-1176 during regular

business hours to make

an appointment - Or email us at appointments@ugofsc.com

Office Hours

Office Hours:

Monday 9:00AM - 5:00 PM

Tuesday 9:00AM - 5:00 PM

Wednesday 9:00AM - 5:00 PM

Thursday 9:00AM - 5:00 PM

Friday  9:00AM - 5:00 PM

Closed Saturday and Sunday



Connect With Us

John Kowalczyk, DO, FACOS

"I chose urology because it presents a unique opportunity to positively impact people's everyday lives in a positive way. Whether it is giving the freedom to venture away from where a bathroom is nearby or helping improve sexual health, performance and intimacy, our patients often see real differences as a result of their treatment. It's gratifying that they place their trust in me to discuss delicate problems and work with them to achieve acceptable solutions." 


John Kowalczyk, DO, FACOS Resume 2017
Dr. K. - CV 2017.docx
Microsoft Word document [29.1 KB]

Robert Naraghi, MD

"Urology is not just my work, it's my passion.  I am gratified by the way people's lives are changed for the better with proper treatment.  Today we have many options to treat some of the most common urologic ailments, many of them less invasive than what was previously available. That's important to my patients, and to me."


Robert Naraghi, MD Resume 2017
Dr NaraghiCV2017.pdf
Adobe Acrobat document [355.0 KB]

Sagie De Guzman, ANP-C

"As an Adult Nurse Practitioner, I try to bring an approach to my practice that is focused on the entire well-being of my patients.  Of course our primary focus in on urologic issues, but I am also here to help direct patients to the appropriate resources for any other problems they want to share with me."

Sagie De Guzman, ANP-C Resume 2017
Adobe Acrobat document [96.3 KB]

Sara Minsavage, PA-C

"The art of healing has always been a great interest of mine. I do not want to exist, I want to live; and I want to aid others to do the same. With education, skill and compassion, I strive to provide the utmost care to our patients."

Sara Minsavage, PA-C Resume 2015
Adobe Acrobat document [63.0 KB]

Cynthia Shaff-Hadel, Insurance & Billing

"Great healthcare starts with a caring, welcoming atmosphere. From our first telephone contact to our last wave goodbye, we strive to insure a positive patient experience. My greatest compliment is complete patient satisfaction."


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