Dale J. Ritzo, MD

Internal Medicine
101 South San Mateo Drive Suite 206
San Mateo, CA 94401 Get Directions
Dale J. Ritzo, MD
More information available

Annual Membership Fee

562.50 every 3 months
1,125.00 every 6 months
2,250.00 each year

My Philosophy and Approach to Wellness...

Healthy living, disease prevention, and personalized, timely medical treatment are what I want for myself and my family. I want my patients to expect those same things for themselves and it is my job to fulfill those expectations for each and every patient that I care for.

Dr. Ritzo's Credentials

Expand All
Collapse All
Mercy Hospital and Medical Center
San Diego, CA

Mercy Hospital and Medical Center
San Diego, CA

Medical School:
University of Southern California, School of Medicine
Los Angeles, CA
Doctorate of Medicine 1982

University of Southern California
Los Angeles, CA
Bachelor of Science, Biology 1978

American Board of Internal Medicine
Mill Peninsula Hospital
Mills-Peninsula Hospital, Department of Medicine
- Chairman 1993-1994
- Executive Committee Member 2013-2015
American College of Physicians
San Mateo County Medical Society
Phi Beta Kappa

Testimonials from patients of Dr. Ritzo

from Howard in CA March 10, 2024 for Dale J. Ritzo, MD

Dr. Dale J Ritzo has been my personal physician for over 40 years. He is amazingly knowledgeable and explains issues and treatment in layman's terms. His comfort care is always on call. His smile is his moniker. He is extremely patient with me, as I sometimes need clarification on certain issues and terms. In the darkest of days, he also tended to my wife's issues with home… See more

from Irwin in CA March 10, 2024 for Dale J. Ritzo, MD

Dr. Dale Ritzo of San Mateo saved my life twelve years ago. This was a result of his very thorough initial exam. Even though I had two clean colonoscopy results five and ten years prior to my exam with him and no symptoms, he discovered an occult colon cancer. The name of game in this case is early detection and treatment and he played it perfectly.
I will be forever grateful,

from Jeff in CA February 22, 2024 for Dale J. Ritzo, MD

Dr. Ritzo is a true partner in my health care. He is knowledgeable, compassionate and available. I trust him completely and am happy to have this opportunity to say so.

from Pamela in CA February 13, 2024 for Dale J. Ritzo, MD

Dr. Dale Ritzo is there to keep my health goals on track. Always available by phone when I travel, he gets me. I am a healthy woman because of Dr. Ritzo tracking all my issues. 

from Jeffrey in CA February 13, 2024 for Dale J. Ritzo, MD

Dr Ritzo has done an excellent job of monitoring my health over the years. When any special health problem occurs, Dr Ritzo is responsive in dealing with the problem. I am blessed to have Dr. Ritzo as my concierge doctor. His office is well run by an excellent staff.

from John in CA February 13, 2024 for Dale J. Ritzo, MD

Dr. Ritzo is always pleasant, respectful and informative. He takes time to ask all questions necessary to get to the right answers. He is very responsive to phone calls, even on his cell phone. If he happens to be unavailable when called at the office or on his cell, he always calls back within a couple of hours at the most. Dr. Ritzo's staff is very professional and always helpful. It… See more

from James in CA February 12, 2024 for Dale J. Ritzo, MD

I appreciate the thoroughness and attention to personal detail that Dr. Dale Ritzo has always demonstrated.
His patience for listening to my concerns and his recommendations are by far the best I have received.

from Elizabeth in CA February 12, 2024 for Dale J. Ritzo, MD

I am always amazed by how he affords the time to listen to all my ailments and I do have a few. And then easily goes over them one by one, and finds some solutions to most.Elizabeth

from CAROLYN in CA February 12, 2024 for Dale J. Ritzo, MD

Our parents are 95 and 99 years old respectively. Neither are very mobile and reluctant to go to a doctor. Dr. Ritzo regularly makes home visits to them to make sure they are in good health and spirits. We are so grateful!

from Ron in CA February 10, 2024 for Dale J. Ritzo, MD
Image provided by: Ron

I have the best doctor in the world. Not only does he discover things before they are serious, but each year as we sit down in his office to review my annual physical tests, we talk about baseball. His son Joe is an announcer for the San Francisco Giants. Dad is a fan. Once we get that out of the way, we get down to looking at the lab tests. Thank God they are normal, and may that be the case… See more