There are 3 fellows each year with their own areas of interests and plans for the future. The program gives them a firm grounding in general cardiology, but also allows them the flexibility to focus on a specific sub-specialty, if desired.
A Word from Our Chief Fellow, Akshai Subramanian, MD
Thank you for your interest in our fellowship program. I was drawn to the KPNC Cardiology Fellowship by the quality of training, the emphasis and investment on each fellow’s professional development, the commitment of the program leadership to continual improvement, and the great camaraderie of the group.
During our training, we get exposed to all aspects of cardiology, from invasive procedures including cardiac device implantation, to cardiac imaging including cardiac CT and MRI, to innovative structural heart interventions, to subspecialty care including Adult Congenital Heart Disease and Pulmonary Hypertension. Clinical volumes and exposure to rare pathology are excellent as all 4.3 million Northern California Kaiser members are funneled through our two cardiovascular training sites. We serve a diverse patient population both within San Francisco and across the Northern California service area. We are proud of our diverse faculty and fellow groups, and are committed to continuing to enrich the diversity of our program. We graduate as well-rounded cardiologists capable of caring for patients with a wide variety of cardiovascular conditions.
Professional development is prioritized by the fellowship program. Our program director, Jonathan Zaroff, and the rest of the faculty are keyed in to the needs of each fellow and check in early and often about each fellow’s goals. For those interested in clinical research, the Division of Research has some of the largest research databases in the world and houses leaders in the fields of clinical informatics, epidemiology, and health care delivery science. The program is also committed to cultivating other interests, such as medical education, quality improvement, and health leadership.
Our program is committed to continual improvement. The leadership prioritizes communication with the fellows and is highly receptive to feedback. Fellow-driven initiatives and suggestions are implemented in a timely manner. This allows the fellows to feel our impact and take ownership of our program’s development.
Lastly, the great camaraderie of our fellow and attending groups is a truly unique aspect of our program. We enjoy frequent happy hours at our local bars with both fellows and attendings. Whether it be a pickup basketball game, happy hours, or returning Dr. Zaroff’s wicked pickleball serve, everyone at KP is interested in your life and family outside the hospital.
Thanks again for taking the time to learn about our program. If you choose to join us, you will receive outstanding preparation for a career in general cardiology or a solid foundation on your path to sub-specialty training. Our fellows have secured desirable employment opportunities and/or positions in advanced training programs both in the Bay Area and around the country. I look forward to meeting you and please reach out if you have any questions!
Current Fellows

Akshai Subramanian, MD
3rd year Cardiology Fellow

Akshai Subramanian, MD
3rd year Cardiology Fellow
Undergraduate education
UCLA
Medical school
UCSD
Residency
UCSF
Career aspirations
I’m interested in general cardiology and medical education.
How I thrive
In my free time, I enjoy going on hikes with my fiancé and my dog (Jasper, a lab-husky mix). I also love craft beers and enjoy visiting local breweries and taprooms.
What I like best about fellowship
The excellent, high volume clinical training as well as enthusiasm in the department for medical education. I also look forward to joining the close, tight-knit, and supportive Kaiser community.
See profile on My Doctor Online

Jeremy Kong, MD
3rd year Cardiology Fellow

Jeremy Kong, MD
3rd year Cardiology Fellow
Undergraduate education
University of California, Davis
Medical School
David Geffen School of Medicine at UCLA
Residency
University of California San Diego Internal Medicine Residency Program
Career aspirations
General Cardiology vs. Advanced Cardiac Imaging
How I thrive
I've always had a passion for sports. Playing basketball, volleyball, and soccer with friends is a great outlet for stress. Fishing has always been one of my favorite hobbies, and I go fishing with my dad at every opportunity I can find. Ultimately, no matter what the occasion or activity, spending time with friends and family gives me the greatest enjoyment in life.
What I like best about Kaiser SF fellowship
Like other great fellowships, Kaiser SF checked off all the boxes for the program accolades, clinical experiences, and research opportunities I was searching for.
See profile on My Doctor Online

Justin Slade, MD
3rd year Cardiology Fellow

Justin Slade, MD
3rd year Cardiology Fellow
Undergraduate education
Boston College
Medical school
Boston University School of Medicine
Residency
Stanford
Career aspirations
My clinical interests are broad yet include the spectrum of heart failure and its intersections with critical care as well as preventive cardiology. In addition to clinical cardiology, I am passionate about quality improvement and implementation research.
How I thrive
Going on adventures with my wife and our toy poodle “Jooni”. Cooking, golfing, spending time on the water, live music and comedy shows. Enjoying all the great activities that San Francisco and Northern California have to offer.
What I like best about fellowship
I was drawn to the program by its high clinical volume as well as Kaiser’s innovation in healthcare delivery and population health research. In concert, I believe these factors uniquely position the fellows to develop into strong clinical cardiologists capable of leading efforts to provide safer, more efficient, and more effective patient-centered care within a health system.
See profile on My Doctor Online

Kent Feng, MD
2nd Year Cardiology Fellow

Kent Feng, MD
2nd Year Cardiology Fellow
UNDERGRADUATE
Duke University
MEDICAL EDUCATION
University of California, San Francisco
RESIDENCY
Duke University
CAREER ASPIRATIONS
I am primarily interested in general cardiology, though have done research in the realm of heart failure as well. In terms of research, I am interested in uptake of evidenced-based care. Lastly, but certainly not least, I am invested in medical education and would love to continue working with residents and fellows after my training is over.
HOW I THRIVE
Traveling to different countries is what my wife and I always look forward to. However, we are also avid foodies, and both enjoy a nice meal at the great restaurants in and around San Francisco as well as baking/cooking up a storm at home.
WHAT I LIKE BEST ABOUT THE FELLOWSHIP
There's no question that one of the top reasons why I chose Kaiser for fellowship is because the environment engenders collaboration between colleagues. There's tremendous amount of support between fellows and with faculty as well. The clinical and procedural volume are also high lights to this fellowship that cannot be overstated.
See profile on My Doctor Online

Salvador Hernandez, MD
2nd Year Cardiology Fellow

Salvador Hernandez, MD
2nd Year Cardiology Fellow
MEDICAL EDUCATION
Universidad de Guadalajara, Centro Universitario de Ciencias de la Salud. Guadalajara, Mexico
RESIDENCY
University of California, Los Angeles – Olive View Internal Medicine Residency
CAREER ASPIRATIONS
I am interested in general cardiology, heart failure, cardiac imaging, access to care, and global cardiovascular health. I envision myself working in a place where I can make a difference focused on patients understanding of their medical condition, and helping to train the physicians of the future.
HOW I THRIVE
I thrive by traveling and discovering new cultures, also, like to explore local hiking trails. I enjoy cooking, baking and enjoying quality time with friends and family.
WHAT I LIKE BEST ABOUT THE FELLOWSHIP
I love the size of the program, and the focus on fellow education and training. I saw a lot of research opportunities working with one of the largest patient databases. Also, from the day of my interview, I realized I would be in a place where they would care about me as a person and not only a fellow.
See profile on My Doctor Online

Diana Tobler, MD
2nd Year Cardiology Fellow

Diana Tobler, MD
2nd Year Cardiology Fellow
UNDERGRADUATE
Sonoma State University
MEDICAL EDUCATION
Oregon Health and Science University
RESIDENCY
University of California, San Francisco
CAREER ASPIRATIONS
I am interested in general cardiology, heart failure, and pulmonary hypertension. Outside of my clinical work I am passionate about understanding how to improve patient outcomes and health care delivery, specifically as it relates to patients who are traditionally underserved in our current healthcare structure.
HOW I THRIVE
I live my best life through staying active and traveling. I love running and hiking and recently got a dog who is always looking for an adventure and makes sure I don’t slack off! I love to travel as a way to experience different cultural and natural perspectives and of course to make new connections. I usually try to travel internationally, but during the pandemic I am embracing local traveling and camping more.
WHAT I LIKE BEST ABOUT THE FELLOWSHIP
Patient care is everyone’s top priority, and fellow education and experience come in a close second. Everyone is working hard to ensure patients receive the best care possible, which is easy to do in such an integrated and collaborative system. Staff and leadership are also deeply invested in fellows having the richest educational experience possible; the program is small enough for the experience to be individualized but large enough to be collaborative and supportive.
See profile on My Doctor Online

Andrew Tai, MD
1st Year Cardiology Fellow

Andrew Tai, MD
1st Year Cardiology Fellow
Undergraduate
University of California San Diego
Medical Education
New York Medical College
Residency
Kaiser Permanente San Francisco
Career aspirations
General Cardiology vs Advanced Cardiac Imaging
How I thrive
I enjoy hiking and being outdoors playing tennis, spikeball, or climbing.
What I like best about the fellowship
I am excited to be training at KP SF because of the many amazing faculty I have worked with during my residency. Working in a an integrated health care system at a high volume referral center presents many educational opportunities from the sheer volume of procedures and interesting cases. I am looking forward to also the opportunity to participate in resident education.
See profile on My Doctor Online

Steven Hamilton, MD
1st Year Cardiology Fellow

Steven Hamilton, MD
1st Year Cardiology Fellow
Medical Education
The University of the West Indies, Faculty of Medical Sciences, Mona Campus, Jamaica
Residency
Jersey Shore University Medical Center (Saint Francis)
Career aspirations
I have a strong interest in advanced heart failure/transplant and to a lesser extent interventional cardiology. Additionally, I am passionate about medical education and quality improvement; it is my desire to continue along this line beyond fellowship training.
How I thrive
Lawn tennis, jogging, cooking and baking. I am a cerevisaphile and enjoy a wide variety of selections. Volunteering with the American Red Cross and Habitat for Humanity has afforded me the humbling opportunity to serve the community beyond being a physician.
What I like best about the fellowship
Dr. Zaroff, my interviewers and the fellows were welcoming, professional and really sold the program during the recruitment process. It was clear that this is a family-oriented, high-quality patient-centered and evidence-based medicine system. As someone who has an interest in research and clinical outcomes, Kaiser’s high-quality research database was appealing. This was capped off by Kaiser’s integrated health care approach bringing it all together.
See profile on My Doctor Online

Maureen Nwaokoro, DO
1st Year Cardiology Fellow

Maureen Nwaokoro, DO
1st Year Cardiology Fellow
Undergraduate
University of California, Davis
Medical Education
Western University of Health Sciences College of Osteopathic Medicine of the Pacific
Residency
University of California, Riverside School of Medicine
Career aspirations
I have multiple areas of interest within cardiology: general, preventive, imaging, and women's heart health. I envision a career where I partner with my patients to provide them with the empowered guidance and tools to be active participants in their overall health especially their cardiovascular health. I am passionate about medical education and would like to have such platform in my future career to pass the torch to future physicians.
How I thrive
Family, Friends, Outdoors, Traveling, Sports, Music, Dancing, Meditation and Mindfulness
What I like best about the Fellowship
I am blessed to have the opportunity to do my Cardiology fellowship in my hometown. I enjoy the strong camaraderie among fellows, as well as having dedicated faculty who love teaching and appreciate the individuality of each fellow. I love how I feel at home in this program and truly believe that we are a family. I have always admired the integrated healthcare system of Kaiser and am excited to partake in providing culturally competent and sensitive care to our socio-economically diverse patient population
See profile on My Doctor Online