Urology Group of Southern California
Urology Group of Southern California

Only Available During Office Hours

Schedule an Appointment


John Kowalczyk, DO, FACOS

Robert Naraghi, MD

Sara Minsavage, PA-C

Sagie De Guzman, ANP-C


Office Locations:

1127 Wilshire Blvd, Suite 805

Los Angeles, CA 90017

Tel: (213) 977-1176

Fax: (213) 977-0668


14860 Roscoe Blvd, Ste 200

Panorama City, CA  91402

(One Monday per month only)


Contact & Appointments:

Please call our main office at

(213) 977-1176 during regular

business hours to make

an appointment - Or click the "Call

Us Now" button above and we'll

call you!

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 J Kowalczyk, DO FACOS

1127 Wilshire Blvd
90017 Los Angeles


I have been a patient with Dr. Kowalczyk for years, and he's always been a very calm and friendly person to work with, and he is every efficient and... more
Three voicemail messages I left after spending the night in the ER with a kidney stone, one for the doctor, two for nurse assistants and no call back two... more
This is a review of the office not the doctor. The doctor may be the best in the world but I wouldn't know. Never even got close to making an... more


Urology Group of Southern California

1127 Wilshire Blvd
90017 Los Angeles


The doctors are nice and knowledgeable, and I am confident I am getting good care. That being said, the logistics could really be improved, waited an hour... more
I have been a patient of Dr. K for over 10 years. He is one of the best if not THE best urologist in the country. He his dedicated to his patients, his... more
I know some people have complained about this place however I have had nothing but great experiences each and every time I go. I know there were problems... more


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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