


Dr. Jon Portnoff, MD
Dr. Jon Portnoff, MD is a cardiologist in Ukiah, CA. Dr. Portnoff has extensive experience in Adult Congenital Heart Conditions. He is affiliated with medical facilities such as Adventist Health Howard Memorial and Adventist Health Mendocino Coast. He is accepting new patients and telehealth appointments.
Adventist Heart & Vascular Institute
115 Hospital Dr Ukiah, CA 95482Hospital Highlight
Dr. Portnoff is affiliated with Adventist Health Howard Memorial Willits, a highly rated hospital.
At a Glance
- Explains Conditions Well
- Offers TelehealthThis doctor offers telehealth appointments. Call the office to schedule an appointment.
- Hospital Satisfaction

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Dr. Portnoff's Reviews
Likelihood to recommend Dr. Portnoff
5 star | 100% | 100% |
4 star | 0% | 0% |
3 star | 0% | 0% |
2 star | 0% | 0% |
1 star | 0% | 0% |
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- Office environment
- Appointment scheduling
- Listened & answered questions
- Explained conditions well
- Staff friendliness
- Appointment wasn't rushed
- Trusted the provider's decisions
- Wait times
- Office environment
- Appointment scheduling
- Listened & answered questions
- Explained conditions well
- Staff friendliness
- Appointment wasn't rushed
- Trusted the provider's decisions
- Wait times
Leave a review
How was your experience with Dr. Portnoff?Overall Patient Satisfaction
Likelihood of recommending Dr. Portnoff to family and friends is 5 out of 5
About Me
care philosophy
Treatment of the whole person, including mind, body & spiritCardiology
*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
Loma Linda University Medical Center
Fellowship HospitalUniversity Of Wisconsin School Of Medicine And Public Health
Residency HospitalAmerican University Of The Caribbean School Of Medicine
Medical SchoolUw Health Uw Hospitals And Clinics
Internship Hospital, 1988Morristown Memorial Hospital
Internship Hospital, 1985California State University
Undergraduate School, 1974
Healthgrades receives board action history for physicians and physician assistants. The information displayed here is sourced from independent information providers, such as state board websites, and may not be the most up-to-date information. Healthgrades makes no representations with respect to the accuracy of any information provided here and assumes no responsibility or liability for such information.
Learn more about medical license public record checkLocations
Adventist Heart & Vascular Institute
Practice
Practice
Affiliated Hospitals
- Recipient of 3
hospital awardsView all awardsOutstanding Patient Experience Award™ (2023, 2022)
Top in the nation for overall patient experience based on nine measures related to doctor and nurse communication, hospital cleanliness and noise levels, and medication and post-discharge care instructions
View all patient feedbackHow patients felt about the care they received at this hospital.
90%Patients said they were given information about recovering at home3% higher than the national average
82%Patients would recommend the hospital to friends and family13% higher than the national average
- View all patient feedback
How patients felt about the care they received at this hospital.
87%Patients said they were given information about recovering at home1% lower than the national average
81%Patients said that nurses always listened to them and explained things well1% lower than the national average
- Recipient of 4
hospital awardsView all patient feedbackHow patients felt about the care they received at this hospital.
87%Patients said they were given information about recovering at home76%Patients said that nurses always listened to them and explained things well2% lower than the national average
Compare Providers
Providers shown based on Dr. Portnoff's location and specialty. Show more Cardiologists.