
Highlights
Age Groups Seen
- Adult 21-65
- Older Adult >65
Languages
- English
Gender
MaleAbout Corey Marcell Warner
About The Provider
Provider Type
Physician
Locations
- Primary Care: Adventist Health
- 18990 Coyote Valley Road, Suite 10, Hidden Valley Lake, CA 95467
- Get Directions
- phone: 707-987-8344
Expertise
Education
- Medical School: Oregon Health & Science University
- Residency Program: Legacy Emanuel Hospital and Medical Center
Insurance
- Aetna
- AH Employee/ Incentive Health
- Anthem Blue Cross
- Blue Shield
- Cigna
- Coventry
- Galaxy
- HealthNet
- HealthSmart
- Medi-cal ORP1
- Medicare AHCL Part B
- Medicare AHPN Part B Overlay
- Network by Design
- Partnership (Under Hospital TIN)
- PFMC
- Tricare
- TriWest
- TRPN
- UHC
- Western Growers
Ratings & Reviews
4.9 out of 5
575 ratings, 81 reviewsOur providers are at the heart of delivering whole-person care. We encourage patients to share their experiences through a patient satisfaction survey they receive following visits. Provider star ratings are calculated using patient responses to provider-focused questions in this survey. Please see the provider’s star rating and patient reviews below. Thank you for giving Adventist Health the opportunity to support your best health.
- 5 out of 5 starsReviewed on 3/26/2026
Doctor was listened amd communicated treatment clearly.
- 5 out of 5 starsReviewed on 2/24/2026
Dr. Warner Is amazing! 10 stars!!!
- 5 out of 5 starsReviewed on 2/21/2026
Caring and considerate.
- 5 out of 5 starsReviewed on 2/19/2026
Doctor warner is very good at taking care of me and my medical issues
- 5 out of 5 starsReviewed on 2/17/2026
Best Doctor cares about his patients and I would definitely recommend
- 5 out of 5 starsReviewed on 2/3/2026
Dr Warner listened to me very intently. He made me feel comfortable enough to speak my concerns. He is very thorough. Awesome doctor
- 5 out of 5 starsReviewed on 2/2/2026
Dr. Warner is EXCELLENT
- 5 out of 5 starsReviewed on 1/29/2026
Dr. Warner is the best. Great listener and smart enough and caring enough to do the research and find great solutions.
- 3 out of 5 starsReviewed on 1/23/2026
I really like Dr Warner however as mentioned he did not hear my needs.
- 5 out of 5 starsReviewed on 1/16/2026
Doctor Warner is the best doctor in the world!!
- 5 out of 5 starsReviewed on 1/16/2026
Dr. Warner Is the best. He has been my primary for the last twenty-years, and I trust him completely. Dr. Warner come into the room prepared, with a positive attitude, and good bedside manner.
- 5 out of 5 starsReviewed on 1/8/2026
I ask questions.I felt heard.
- 5 out of 5 starsReviewed on 1/7/2026
Dr Warner is the best!
- 5 out of 5 starsReviewed on 1/7/2026
Professional and caring.
- 5 out of 5 starsReviewed on 1/6/2026
Dr Warner is a great listener
- 5 out of 5 starsReviewed on 12/25/2025
Dr. Warner is great couldn't ask for a better doctor.
- 5 out of 5 starsReviewed on 12/24/2025
Dr. Warner is awesome! He listens and explains things whereas I'm able to understand. He is very thorough in all my appointments.
- 5 out of 5 starsReviewed on 12/20/2025
Very good, as I have come to expect.
- 5 out of 5 starsReviewed on 12/18/2025
Dr Warner was very helpful and supportive
- 5 out of 5 starsReviewed on 12/16/2025
Best care available
- 5 out of 5 starsReviewed on 12/4/2025
I really like this doctor but I don't think he really understood the level of pain I was experiencing.
- 5 out of 5 starsReviewed on 11/14/2025
Doctor Warner is the best.His gal that took the vitals is wonderful and kind. By in
- 5 out of 5 starsReviewed on 11/12/2025
Best doctor ever
- 5 out of 5 starsReviewed on 11/12/2025
Best practice ever
- 5 out of 5 starsReviewed on 11/9/2025
Very good experience as always with doctor
- 5 out of 5 starsReviewed on 10/31/2025
Dr. Warner is always helpful and caring
- 5 out of 5 starsReviewed on 10/30/2025
Dr Warner is the best!
- 5 out of 5 starsReviewed on 10/24/2025
We love Dr Warner
- 5 out of 5 starsReviewed on 10/23/2025
Dr Warner always listens and takes me seriously
- 5 out of 5 starsReviewed on 10/21/2025
Very good doctor.
- 5 out of 5 starsReviewed on 10/16/2025
Always good experience
- 5 out of 5 starsReviewed on 10/6/2025
Dr Warner has always taken very good care of me & my family members! He always listens carefully to whatever we have to say! I appreciate him & his care very much!!
- 5 out of 5 starsReviewed on 10/4/2025
Dr Warner is wonderful
- 5 out of 5 starsReviewed on 10/2/2025
Dr. Warner was fantastic, caring and very thorough, listen to my concerns and prescribed exactly what I needed
- 5 out of 5 starsReviewed on 9/28/2025
Dr. Warner answered all of my questions and took time with me. It was a great dr Appt
- 5 out of 5 starsReviewed on 9/26/2025
Dr. Warner was great
- 5 out of 5 starsReviewed on 9/24/2025
I really appreciated Dr. Warner taking a moment on a busy day to comfort me after I shared that my dog passed away. His compassion and kindness meant so much to me.
- 5 out of 5 starsReviewed on 9/24/2025
Dr. Warner went above and beyond. He took time to discuss my issues and answered any questions I had. I felt listened to.
- 5 out of 5 starsReviewed on 9/24/2025
I continue to be impressed with the excellent care provided by Dr. Warner. He is so helpful and I certainly appreciate it very much.
- 5 out of 5 starsReviewed on 9/23/2025
Dr. Warner was thorough & asked many questions. He advised a well thought out plan of action for continuing care. He is caring & compassionate.
- 5 out of 5 starsReviewed on 9/19/2025
Dr Warner is amazing. Always willing to listen.
- 5 out of 5 starsReviewed on 9/18/2025
Dr Warner was amazing. He took the time to get to know me and my medical background. He genuinely cared and was so compassionate, funny, and kind. This is THE best experience I've ever had at a doctor's office. So happy to be under his care.
- 5 out of 5 starsReviewed on 9/12/2025
Dr Warner sat down in a chair to talk to me and really listen to me. It made me feel seen
- 5 out of 5 starsReviewed on 9/11/2025
He answered all my questions
- 5 out of 5 starsReviewed on 9/9/2025
Dr. Warner is A#1.
- 5 out of 5 starsReviewed on 9/8/2025
Friendly and knowledgeable
- 5 out of 5 starsReviewed on 9/4/2025
Dr. Warner is welcoming, and listens attentively to my needs. He always offers encouragement, support and valuable information.
- 5 out of 5 starsReviewed on 9/4/2025
Always recommend Dr Warner to others if they mention they are searching for care
- 5 out of 5 starsReviewed on 9/3/2025
Dr. Warner always listens to and addresses my concerns.
- 5 out of 5 starsReviewed on 9/2/2025
Very knowledgeable and attentive
- 5 out of 5 starsReviewed on 8/29/2025
Dr. Warner helped me understand what was going on in my CT scan. He put my anxiety at ease. Thank you
- 5 out of 5 starsReviewed on 8/27/2025
Dr. Warner was very concerned with my condition when I arrived for my appt.
- 5 out of 5 starsReviewed on 8/15/2025
Dr. Warner listened and responded very well to my concerns. Took time to explain result of my test so I could understand
- 5 out of 5 starsReviewed on 8/15/2025
Dr Warner was emphatically fighting for me which made me feel advocated for and listened to
- 5 out of 5 starsReviewed on 8/14/2025
Dr. Warner is the best!!!! He makes you feel cared about.....
- 5 out of 5 starsReviewed on 8/14/2025
Doctor Warner is the best
- 5 out of 5 starsReviewed on 8/13/2025
I feel very comfortable with Dr Warner
- 5 out of 5 starsReviewed on 8/11/2025
Dr listened and understood what I was needing and was able to to comment and expand to better product to meet my needs and get a prescription in the works for me at a new pharmachy based on my specific issues and concerns.
- 5 out of 5 starsReviewed on 8/3/2025
Dr Warner and I get a long very well!
- 5 out of 5 starsReviewed on 8/1/2025
Dr Warner always listens to my concerns!
- 5 out of 5 starsReviewed on 7/27/2025
Grateful for a physician that really focuses on personalized care
- 5 out of 5 starsReviewed on 7/27/2025
Dr. Warner is always listens to my concerns and tries to lead me to the best options when considering my health.
- 5 out of 5 starsReviewed on 7/17/2025
Dr Warner is very good at listening and medical problem solving. I enjoy every interaction with him
- 5 out of 5 starsReviewed on 7/12/2025
Reviewed all of my health Issues. Explained both good and problem health factors
- 5 out of 5 starsReviewed on 7/11/2025
Cory was very friendly and a great doc now that he has more time.
- 5 out of 5 starsReviewed on 7/9/2025
Dr. WARNER is always very attentive
- 5 out of 5 starsReviewed on 6/26/2025
Dr Warner has always taken very good care of me, listened to me & taken me seriously & taken care of all of my needs very well!!
- 5 out of 5 starsReviewed on 6/25/2025
Dr.Warner is great
- 5 out of 5 starsReviewed on 6/19/2025
Dr. Warner took a long time with me, and was very caring about my problems.He made me feel cared about and had good references for me.He is the best. He gave me RX's for depression and sleep.
- 5 out of 5 starsReviewed on 6/13/2025
Dr Warner always listens to my concerns
- 5 out of 5 starsReviewed on 6/10/2025
I have never had a doctor as attentive as Dr. Warner.
- 5 out of 5 starsReviewed on 6/10/2025
Doctor listened to me and answered all my questions
- 5 out of 5 starsReviewed on 5/28/2025
Good listener, very kind and gentle asked appropriate questions to understand my issue
- 5 out of 5 starsReviewed on 5/28/2025
One of the best I've ever had
- 5 out of 5 starsReviewed on 5/22/2025
Dr. Warner was fully engaged.
- 5 out of 5 starsReviewed on 5/4/2025
He is the best
- 5 out of 5 starsReviewed on 5/1/2025
Dr Warner has always taken very good care of me & I always have felt very supported
- 5 out of 5 starsReviewed on 5/1/2025
Dr Warner is upbeat and emphatic. He makes you feel good about progress you've made. He takes the time to answer questions thoroughly and in a way you can understand.
- 5 out of 5 starsReviewed on 4/29/2025
I feel Dr warner cares about me.he has a good sense of humor and makes me feel comfortable
- 5 out of 5 starsReviewed on 4/25/2025
Very professional
- 5 out of 5 starsReviewed on 4/19/2025
Dr Warner is awesome