Danny Lock, MD
Please contact to confirm appointment availability
Please contact to confirm appointment availability
Specialty
Family Medicine, Geriatric Medicine (Family Medicine)
Languages
English
Need help with your Medicare plan options?
Call 1-888-406-0090* to speak with a licensed insurance agent or shop online.
Seeing patients at
Patient Reviews
Patient review summary
Learn about our survey5
4
3
2
1
4.7
73 reviews
-
- 5.0 Reviewed on May 30, 2026
- Verified Review
He's about the only reason I stay up and he's very conscientious and kind
-
- 5.0 Reviewed on May 30, 2026
- Verified Review
Dr. Lock is very thorough and takes his time
-
- 5.0 Reviewed on May 29, 2026
- Verified Review
I like the way he treats me.
-
- 5.0 Reviewed on May 24, 2026
- Verified Review
I have been Dr Lock’s patient for 20 years. I feel very comfortable being under his care.
-
- 4.5 Reviewed on May 16, 2026
- Verified Review
Always helpful
-
- 5.0 Reviewed on May 15, 2026
- Verified Review
24 years of quality care! He talks to me about my health and fully explains test results.
-
- 5.0 Reviewed on May 11, 2026
- Verified Review
Understands my medical needs. Very easy to communicate with him.
-
- 5.0 Reviewed on May 8, 2026
- Verified Review
Danny Lock is the best! He has been my primary care doctor for over twenty years. he takes his time and answers all my questions. very easy to get along with!
-
- 5.0 Reviewed on May 2, 2026
- Verified Review
very good
-
- 4.5 Reviewed on Apr 30, 2026
- Verified Review
I chose Dr. Lock to begin with because I live 2 blocks from his office, He is extremely knowledgeable patient with me and throughour with the info
-
- 5.0 Reviewed on Apr 30, 2026
- Verified Review
He’s thorough and shows an abundance of concern for your ailments
-
- 5.0 Reviewed on Apr 26, 2026
- Verified Review
Dr. Lock is always kind. He listens and answers my questions and explains everything. He is professional and knowledgeable and I have every confidence in him.
-
- 5.0 Reviewed on Apr 17, 2026
- Verified Review
Caring and professional
-
- 5.0 Reviewed on Apr 15, 2026
- Verified Review
Dr Lock is very caring. He takes his time to listen to your concerns. Makes sure that all your questions are answered. He’s a very nice physician.
-
- 5.0 Reviewed on Apr 12, 2026
- Verified Review
Dr Lock is approachable and Down to Earth .. He shows concern with regard to ones questions .He is easy to talk to in spite of his busy schedule and manages it well. He is one of a kinds!
-
- 5.0 Reviewed on Apr 4, 2026
- Verified Review
Thorough
-
- 5.0 Reviewed on Apr 3, 2026
- Verified Review
Dr lock is the only one I trust. I’m very happy with him
-
- 5.0 Reviewed on Mar 29, 2026
- Verified Review
I have been with DR Locke for about thirty years or more
-
- 5.0 Reviewed on Mar 27, 2026
- Verified Review
He has been my provider for many years, and continues to make sure I have the best continual care.
-
- 5.0 Reviewed on Mar 6, 2026
- Verified Review
He's the best! Professional, interested in me, puts the patient first. A really nice man a d excellent physician.
-
About Danny Lock, MD
Danny Lock, MD, is board certified in family medicine. Dr. Lock earned his medical degree from the Universidad Autonoma de Guadalajara School of Medicine in Mexico. He completed two internships: one at LA County-USC Medical Center, and another at UC Irvine Medical Center. He also completed a residency through the USC Family Medicine Residency Progr am. Dr. Lock really cares about families; that is why he chose family medicine as his medical specialty. He sees a wide variety of patients from children to seniors, and gives them each the attention and time they need. In his spare time, Dr. Lock enjoys spending time with his family and friends. In addition to English, he speaks fluent Spanish.Gender
Male
Board certifications
American Board of Family Medicine
Licenses
CA, A36304
Employed or contracted
Employed
Network Name
OptumCare HealthCarePartners California
NPI
1144280348
Hospital affiliations
Pomo Valley Hospital Medical Center,Emate Health,San Dimas Community Hospital
-
Medical School
-
Univ of California Irvine Medical Center
1978
Residency
-
USC CA Med Center/Family Practice
Family Medicine
1981
Internship
-
LAC/USC
1980
-
The contact information listed will direct you to a licensed representative that works with Medicare enrollees to explain Medicare Advantage and Prescription Drug Plan options. There may not be plans available in your area. Any information provided is limited to those plans offered in your area.
*The contact information listed will direct you to a licensed representative that works with Medicare enrollees to explain Medicare Advantage and Prescription Drug Plan options. There may not be plans available in your area. Any information provided is limited to those plans offered in your area. Please contact Medicare.gov or 1-800-MEDICARE to get information on all of your options.
You are leaving Optum
You are now leaving Optum and going to a third-party website operated by Google. Optum is not responsible for the content or accuracy of the information on this third-party site. We recommend you review the third-party site's privacy policy and terms of use, as Optum's will no longer apply.
Leaving Optum.com
You are now leaving Optum.com to see Medicare plan choices through our partner site.
Data use
We use cookies and similar tools to make your use of this website easy and to keep it working properly. We may share data about you and how you use the site with third parties, such as analytics and marketing partners. Learn more in our Privacy Policy and Terms of Use. By continuing to use the site, you agree to this.