About Cornerstone Primary Care

Discover Cornerstone Primary Care, a caring Automotive serving Walnut Creek, CA with tailored guidance designed to fit your lifestyle. Backed by a 4.60 rating and 49 reviews, we provide great service and quality and accessible facilities to help make every step feel manageable.

Last updated: Jun 26, 2026

Business Hours

Closed · Saturday Closed
Thursday 8 AM-4:30 PM
Friday 8 AM-4:30 PM
Saturday Closed
Sunday Closed
Monday 8 AM-4:30 PM
Tuesday 8 AM-4:30 PM
Wednesday 8 AM-4:30 PM

Customer Reviews

4.60
Based on 49 reviews
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Denis Fung

Dr. Pirkle is always on top of the latest studies and standards of care. If you want a state-of-the-art general practitioner that has highly trustworthy and ethical judgement, Dr. Pirkle is your doctor.

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Dan Beaver

Dr. Pirkle, Spent time with me, no sense that he was trying to rush me out. Asked questions and listened when I responded. It's a pleasure to walk into your office. No crazy, chaos going on like I have experience in other doc's waiting rooms.

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David G Messerschmitt

Dr Pirkle does not shortchange the time with me, exploring symptoms and options until we are both satisfied. He has an incredibly encyclopedic knowledge of conditions, and explains things well.

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Julie Heim

Dr. Bernens is the best! He is extremely thorough which I greatly appreciate. I always feel comfortable when I see him because I know how much he cares about his patients. The staff at Cornerstone is amazing.

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James Falaschi

Dr Pirkle has been hands down the is the Best Physicians I have ever had a relationship with. He is dramatically skilled Professional focused on one thing his patient.

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Alan Lindquist

In serious pain after a bike riding accident, I was relieved that Dr. Pirkle was able to fit me into his busy schedule, diagnose the situation, and prescribe medications to reduce pain and get the recovery process started. This visit with my own doctor avoided an impersonal emergency room visit, which would probably have involved many uncomfortable hours waiting to …

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Thomas Clarke

Dr. Pirkle's "bedside" manner can often be less than ideal. However, he is extraordinarily thorough and very competent, two traits even his medical school faculty apparently noticed (I recently ran into one of his med school teachers at a community meeting, which was rather ironic). It also helps to come to appointments with questions related to your problem(s). Follow-up is …

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Sandra Way

Dr. Pirkle is always a delight to see. He is very thorough and shows his concern for the well being of all his patients. His staff is friendly and efficient. I feel privileged to be one of his patients.

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Bill Cameron

What makes health care with Dr. Ross Pirkle different? Collaboration. Collaboration with you, the patient, and collaboration with a large network of leading specialists. Collaboration with your nurses & providers if you’re hospitalized. He values patient input. You're encouraged to share your story and ask questions. He doesn’t hesitate to consider alternate ideas and emerging research to achieve results. His …

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Kailynn Lazzara

I have been seeing Dr. Pirkle as my primary care doctor coming on 10 years now. I cannot even being to describe how amazing, supportive, caring and knowledgeable of a doctor he is. Several years ago when I was in college I was a “medical mystery”, I was at his office at least 2-3 times a month, along with countless …

People Also Ask

Where is Cornerstone Primary Care located?
Cornerstone Primary Care is located at 120 La Casa Via #211, Walnut Creek, CA 94598, United States, Walnut Creek, CA, United States. You can get directions here.
What is Cornerstone Primary Care rated?
Cornerstone Primary Care has a rating of 4.60 out of 5 stars based on 49 customer reviews.
What are Cornerstone Primary Care's hours?
Cornerstone Primary Care's hours vary by day. Please check the Business Hours section above for the full weekly schedule.
How do I contact Cornerstone Primary Care?
You can reach Cornerstone Primary Care by phone at +1 925-378-4040.
What type of business is Cornerstone Primary Care?
Cornerstone Primary Care is a health & wellness business located in Walnut Creek, CA. Discover Cornerstone Primary Care, a caring Automotive serving Walnut Creek, CA with tailored guidance designed to fit your lifestyle. Backed by a 4.60 rating and 49 reviews, we provide great …