Keli R. Layton-Cunnigan, PAC
Diamond Bar, CA 91765
- Mission Heritage Medical Group and Affiliated Physicians
- St. Joseph Heritage Medical Group and Affiliated Physicians
- St. Jude Heritage Medical Group and Affiliated Physicians
St. Jude Heritage Primary Care - Diamond Bar
253 South Diamond Bar Boulevard, Diamond Bar, CA 91765

2026 Golden State Patient
Experience Award Recipient
The Golden State Patient Experience Awards is Providence’s California-wide program, recognizing providers in Northern and Southern California who consistently deliver outstanding patient experiences, based on patient feedback and experience scores.
Insurances Accepted
This information provides an overview of accepted insurance plan types for new patients. Coverage may vary by specific plan. Please verify with your insurance provider before visiting us for care. Established patients should call to verify insurance acceptance.
About Keli R. Layton-Cunnigan
Keli Layton received her physician assistant training from UC Davis in 2000. Over the years, she has worked in urgent care and emergency rooms. Prior to coming to Providence St. Joseph Health, she worked in a county ER for over 10 years. Keli believes an informed patient is a better patient and will spend ample time with each patient to ensure they are always properly informed.
- National Commission on Certification of Physician Assistants, Physician Assistant
Community Reviews
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As part of ensuring you have a positive experience with Providence, our online provider directory includes ratings and patient comments for select providers. More about our survey.
The facility is clean and neat. Staffs are friendly. Provider's altitude is very nice and she is knowledgeable, very good experience.
Providence Patient
She looked at my tests explained them very good
Providence Patient
Had a very good experience as usual.
Providence Patient
She was very kind and answered all my questions.
Providence Patient
I have found the physical therapy exercises Keli recommended to do at home very helpful in alleviating some of my problems.
Providence Patient
The office was very nicely laid out. The check in nurses/staff were quick but gave me the time needed and I didn't feel like "number". The office and nurses were very professional and took notes of my reason for visit. Dr. Layton is great, she gave me time and discussed additional concerns I had that I wasn't really there for. The office is just a little far from my home but it is the closest that I know of. I like the facility and care I received
Providence Patient