
Jason Robert Jeffery, MD
Internal Medicine
Highlights
Age Groups Seen
- Adult 21-65
- Older Adult >65
Languages
- English
Gender
MaleAbout Jason Robert Jeffery
About The Provider
Jason Jeffery, MD, began caring for patients in Sonora in 2014, after completing his residency at Santa Clara Valley Medical Center and earning the Resident Consultant of the Year Award. Prior to medical school at Loma Linda University School of Medicine, while obtaining his Master’s in Biology, Dr. Jeffery found he wanted to work with people. He then discovered and settled on Internal Medicine. “I love the outpatient side because of the continuity of care,” says Dr. Jeffery. “I also enjoy being able to be a part of a patient’s long-term healing. I want to share advice and recommendations in order to maximize the patient’s health as best we can together and to make a difference by connecting the patient with the resources they need to be healthy.”
Provider Type
Physician
Locations
- Adult Medicine: Adventist Health Sonora
- 690 Guzzi Lane, Suite Cd, Sonora, CA 95370
- Get Directions
- phone: 209-536-3820
Expertise
Education
Loma Linda University School of Medicine
Medical SchoolSanta Clara Valley Medical Center
Residency ProgramBoard Certifications
Internal Medicine
American Board of Internal Medicine, 2010Insurance
- Aetna
- Anthem Blue Cross
- Anthem MediCal
- Blue Shield
- CA Health & Wellness
- Cigna
- HealthNet
- Medi-cal ORP1
- Medicare AHSR Part B
- Stanislaus Foundation (AHSR)
- Tricare
- TriWest
- UHC
- Western Growers (AHCL) (AHSR)
Ratings & Reviews
5 out of 5
413 ratings, 63 reviewsThe provider star rating is calculated using patient responses to the five care provider questions in our patient satisfaction survey. Below you can see the provider’s star rating and the number of his or her patients who have provided feedback.
- 5 out of 5 starsReviewed on 9/18/2025
I happened to go to Safeway after seeing Dr. Jeffery, and ran into a gentleman that I didn't know (who said he was also a patient of Dr. Jeffery), and we spent a few minutes talking about how wonderful the doctor is, how he listens to patients, and is very thorough, and more. We agreed that we feel blessed to be his patients and hope we can stay with him forever.
- 5 out of 5 starsReviewed on 9/16/2025
Dr Jeffery is an outstanding listener, communicates in My opinion from the Heart. Excellent again.
- 5 out of 5 starsReviewed on 9/11/2025
Every one wants to be Dr. Jeffery patient. He's very nice, compassionate, and really care.
- 5 out of 5 starsReviewed on 9/9/2025
Dr. Jeffery is so kind and caring and he truly cares about your overall well being.
- 5 out of 5 starsReviewed on 9/9/2025
Dr. Jeffery is so caring. Always takes the time to explain and answer any questions.
- 5 out of 5 starsReviewed on 8/23/2025
Best Dr i've had
- 5 out of 5 starsReviewed on 7/31/2025
Always listens to you and tries find the best way to help with your problems
- 5 out of 5 starsReviewed on 7/22/2025
Dr Jeffery is the best, hands down.
- 5 out of 5 starsReviewed on 7/19/2025
Outstanding primary care physician.
- 5 out of 5 starsReviewed on 7/18/2025
Dr. Jason Jeffrey is the best! He is the perfect physician- he is respectful, kind, a good listener and troubleshooter. I trust him implicitly.
- 5 out of 5 starsReviewed on 7/10/2025
Dr Jeffery is an excellent physician. The best physician I ever had taking care of me.
- 5 out of 5 starsReviewed on 7/10/2025
Very good experience
- 5 out of 5 starsReviewed on 7/9/2025
Dr Jeffery listens to every word I say and remembers at my next appt. I'm 74 and have had great doctors and not so great doctors. Dr Jeffrey Is over them by a mile. And he smiles!!!
- 5 out of 5 starsReviewed on 6/11/2025
Always listens to me and answers my questions
- 5 out of 5 starsReviewed on 5/30/2025
Dr Jeffery is a good listener and is thorough with his care.
- 5 out of 5 starsReviewed on 5/30/2025
Dr. Jeffery is such a kind, caring and very knowledgeable Doctor. I am truly blessed to have him as my Doctor.
- 5 out of 5 starsReviewed on 5/29/2025
Dr. Jeffery displayed wonderful attention to hearing me and showed he cared about the progress I hope to make soon.
- 5 out of 5 starsReviewed on 5/24/2025
Always a good experience because I know Dr Jeffery "has my back!"
- 5 out of 5 starsReviewed on 5/23/2025
Jeffery's is always a good listener
- 5 out of 5 starsReviewed on 5/22/2025
He never tries to leave early or looks at his watch. Just the best Doctor
- 5 out of 5 starsReviewed on 5/19/2025
Dr. JEffery is a wonderful and caring physician.
- 5 out of 5 starsReviewed on 5/17/2025
Dr. Jeffery is the most engaged physician I have had my adult life. I appreciate his bedside manner and intent interest in my health care.
- 5 out of 5 starsReviewed on 5/12/2025
Dr. Jeffery always takes the time to listen to my concerns or Answer my questions .
- 5 out of 5 starsReviewed on 5/7/2025
Dr Jeffery is one of the most caring and knowledgeable doctors I've had the pleasure of being a patient of.
- 5 out of 5 starsReviewed on 4/30/2025
Dr. Jeffery is the greatest doctor who really cares about my health
- 5 out of 5 starsReviewed on 4/25/2025
Dr.Jeffery isTHE BEST!! So thoughtful, compassionate, and knowledgeable.
- 5 out of 5 starsReviewed on 4/18/2025
Dr Jeffery as always a good listener!
- 5 out of 5 starsReviewed on 4/11/2025
Dr Jeffery truly cares about his patients and provides excellent care. He always listens and answers every question. Even though I know how busy he is, I never feel rushed.
- 5 out of 5 starsReviewed on 3/28/2025
Dr Jeffery is the best physician I ever had.
- 5 out of 5 starsReviewed on 3/21/2025
Dr Jeffery's virtual visit went smoothly. He was able to see my eye and send a prescription to a pharmacy for me.
- 5 out of 5 starsReviewed on 3/21/2025
Dr Jeffery and his nurse are consistently kind, courteous and competent.
- 5 out of 5 starsReviewed on 3/13/2025
Would not trade Dr Jeffery for anything
- 5 out of 5 starsReviewed on 3/9/2025
All experiences with Dr. Jeffery have been very prompt and professional for me.
- 5 out of 5 starsReviewed on 3/6/2025
My trust of Dr Jeffery is 100%
- 5 out of 5 starsReviewed on 3/4/2025
Outstanding doctor that cares and knows what is needed!!!
- 5 out of 5 starsReviewed on 2/25/2025
I have the utmost respect for Dr Jeffery
- 5 out of 5 starsReviewed on 2/20/2025
Dr. Jeffery is the BEST
- 5 out of 5 starsReviewed on 2/20/2025
Dr. Jeffery was very prepared for my appt. He followed up on 4 issues & I was so impressed.
- 5 out of 5 starsReviewed on 2/20/2025
Dr. Jeffery is so kind and wanting to help whatever issue I have and he always listens to me.
- 5 out of 5 starsReviewed on 2/7/2025
Dr Jeffery is on of the best doctors I have ever seen. Very thorough, knowledgeable and cares about the patients he sees.
- 5 out of 5 starsReviewed on 2/6/2025
Dr. Jeffery is the best!
- 5 out of 5 starsReviewed on 2/6/2025
Doctor listened to all my concerns and addressed them.
- 5 out of 5 starsReviewed on 2/3/2025
Dr Jeffery is just the best doctor ever very caring and so thorough
- 5 out of 5 starsReviewed on 1/31/2025
Dr Jeffery is excellent by any measure.
- 5 out of 5 starsReviewed on 1/15/2025
Dr Jeffery is great.
- 5 out of 5 starsReviewed on 1/8/2025
Dr Jeffery is very capable and empathetic in dealing with his patients.
- 5 out of 5 starsReviewed on 12/21/2024
Dr.Jeffery is an outstanding physician!
- 5 out of 5 starsReviewed on 12/19/2024
Dr Jeffrey is the most thorough, kind and caring doctor I've ever had in my 69 years of life. I am so grateful for him.
- 5 out of 5 starsReviewed on 12/7/2024
Dr Jeffery is outstanding.
- 5 out of 5 starsReviewed on 12/6/2024
Dr. Jeffery is very knowledgeable. He is more than caring and compassionate.
- 5 out of 5 starsReviewed on 11/27/2024
Best Doctor ever.
- 5 out of 5 starsReviewed on 11/16/2024
It's always a good experience with Dr. Jeffery.He asks questions & listens to what I have to say & addresses any concerns I may have.He's one of the best Doctors I have ever had!
- 5 out of 5 starsReviewed on 11/12/2024
Excellent and professional and caring experience
- 5 out of 5 starsReviewed on 11/9/2024
Always thorough.
- 5 out of 5 starsReviewed on 11/8/2024
Dr.Jeffery is never in a hurry. He is very attentive and listens to every concern I might have. My husband and I are very blessed to have him as our primary Doctor
- 5 out of 5 starsReviewed on 10/24/2024
Dr. Jeffery is a very good listener & he puts patient input first.
- 5 out of 5 starsReviewed on 10/23/2024
Dr.Jeffery has always been a very caring physician. He is very good about explaining all his concerns. He listens good and don't make me feel rushed. He will follow up with my messages Dr.Jeffery shows he cares and is very good about providing what he needs to address my care.
- 5 out of 5 starsReviewed on 10/22/2024
Dr Jeffery was a wonderful listener, asked very pertinent questions and was thorough in going over my history! Excellent patient T skills!
- 5 out of 5 starsReviewed on 10/17/2024
First-rate care!
- 5 out of 5 starsReviewed on 10/16/2024
Dr Jeffery is an excellent physician. He is very knowledgeable and includes me in decisions andAlways takes time to explain things carefully.
- 5 out of 5 starsReviewed on 10/16/2024
Dr. Jeffery eased my anxiety regarding my medical conditions. He has excellent communication skills and has genuine concern for my well-being. He educates you with his explanations and makes sure you understand. I feel blessed that he Is my Doctor.
- 5 out of 5 starsReviewed on 10/11/2024
Dr Jeffery is the best!
- 5 out of 5 starsReviewed on 10/10/2024
Dr Jeffery is the ultimate physician. He always puts me at ease and makes it easy and comfortable to have a personal discussion. I am lucky to have such a great doctor