John Nicholas Diana, MD
Orthopedic Surgery
About
About The Provider
Provider Type
Locations
- Coon Joint Replacement Institute: Adventist Health St. Helena
- 6 Woodland Road, Suite 202, Saint Helena, CA 94574
- Get Directions
- phone: 707-968-0670
- 3273 Claremont Way, Suite 100, Napa, CA 94558
- Get Directions
- phone: 707-254-7117
Expertise
Education
Indiana University School of Medicine
Medical SchoolHospital of the University of Pennsylvania
Internship ProgramHospital of the University of Pennsylvania
Residency ProgramBoard Certifications
Orthopaedic Surgery
American Board of Orthopaedic Surgery, 2003Insurance
- Adventist Health Employee Health/Incentive Health
- Aetna
- Blue Cross
- Blue Shield
- CA Health &Wellness
- Cigna
- Coventry
- Galaxy
- Health Net
- Healthnet/Mental Health (PSYCH only)
- IPA Meritage
- IPA Providence
- Kaiser
- Magellan (PSYCH only)
- Medi-cal ORP
- Medicare
- MultiPlan
- Networks By Design
- Partnership Health Plan
- River City
- Tricare
- Triwest
- UHC
- Western Health Advantage ( IPA Providence)
Reviews
4.9 of 5 stars
187 Ratings, 23 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 3/23/2024
They noted concerns and were extending my physical therapy for my weak left hip.
- 5 out of 5 starsReviewed on 3/22/2024
I Recommend Coon Clinic - EVERY time there is an opportunity
- 5 out of 5 starsReviewed on 3/19/2024
Dr. Diana is a doctor that listens and cares about the quality of life with his patients.He is the best thing that every happened to me for a doctor.
- 5 out of 5 starsReviewed on 2/14/2024
All medical personnel were great,
- 5 out of 5 starsReviewed on 2/14/2024
I have been recommending your facility to others.
- 5 out of 5 starsReviewed on 2/14/2024
I felt that Dr. Diana's medical and surgical expertise, knowledge and caring was exemplary.
- 5 out of 5 starsReviewed on 2/6/2024
I am a raving fan of Dr. Diana and his team and have recommended him to everyone who has commented on how quickly I have recovered from my surgery - including the PT staff!
- 5 out of 5 starsReviewed on 12/22/2023
I work at a clinic that is 2 hours away, but Coon Joint Institute is the only place we re refer for knee surgery
- 4 out of 5 starsReviewed on 12/13/2023
Very happy with the care recived. Very professional.
- 4 out of 5 starsReviewed on 12/6/2023
Dr Diana covered everything well so we didn't have any questions. I feel I made the right choice for surgery.
- 5 out of 5 starsReviewed on 10/29/2023
Felt very good about the overall visit. Dr. Diana was very straight forward about my options. He listened to my history and laid out a treatment plan that seemed very reasonable.I left the appointment feeling like I am at least am moving forward.
- 5 out of 5 starsReviewed on 10/10/2023
Dr Diana was excellent
- 5 out of 5 starsReviewed on 10/4/2023
Wonderful meeting and discussion held.
- 5 out of 5 starsReviewed on 9/6/2023
I had a wonderful experience with the Coon Institute and Adventist Health from the very first visit.
- 5 out of 5 starsReviewed on 9/6/2023
Dr. Diana is very personable and an excellent doctor.
- 5 out of 5 starsReviewed on 6/10/2023
Very informative and answered all questions with thoughtful consideration.
- 5 out of 5 starsReviewed on 6/3/2023
Absolutely top-notch physician and staff, which is why I chose to make an appointment and have my orthopedic medical concerns addressed by this physician and office staff.
- 5 out of 5 starsReviewed on 5/31/2023
Dr Diana is a compassionate knowledgeable physician who LISTENS!
- 5 out of 5 starsReviewed on 5/3/2023
The attitudes of everyone was just wonderful. You just don't experience the positive moral that Adventist care givers have. Inspiring.
- 5 out of 5 starsReviewed on 5/2/2023
Dr Diana is extremely good I was recommended by several he did both my knees I am so grateful!!
- 5 out of 5 starsReviewed on 4/26/2023
I recommend everyone to see Dr Diana for knee replacement
- 5 out of 5 starsReviewed on 4/13/2023
I had my other hip replacement 4 years ago and came back so see Dr Diana again because everything was well done. Staff is great too.
- 5 out of 5 starsReviewed on 4/6/2023
Dr. Diana's medical assistant was very professional and friendly. Dr. Diana was very personable and explained the medical process very well. He made me feel at ease and gave me great confidence in his abilities to address my issue.