Joon S. Park, MD
Program Director

Undergraduate School: Stanford University
Medical School: Loma Linda University
Residency Training: Internal Medicine Kaiser Permanente LAMC
Chief Residency: Internal Medicine Kaiser Permanente LAMC
About Me: I trained as a resident here and stayed on as a 4th-year Chief Resident then Internal Medicine Hospitalist. I joined the Academic Hospitalist Group because I truly felt that I could practice medicine the way it was supposed to be practiced - with true interdisciplinary teamwork, patient-focused care that ensures patients are not lost to follow up, and also evidence-based medicine that is largely free from financial/social pressures (we as physicians have final say on medical decisions). Looking back, the greatest strength of this program to me was the ability to follow your own panel of patients in ALL phases of care - outpatient, inpatient, procedures, and at home via home health or various other monitoring programs. This is a unique training opportunity that allows you to see how your decisions impact the patient at each phase and allows you greater insight into ways to improve patient outcomes and satisfaction.

Cynthia Ho, MD
Associate Program Director, Inpatient Education

Undergraduate School: Northwestern University
Medical School: Keck School of Medicine
Residency Training: Combined Internal Medicine and Pediatrics, LAC+USC
About Me: I completed my residency in Combined Internal Medicine and Pediatrics at Los Angeles County + University of Southern California Medical Center and was an academic Hospitalist for close to a decade before coming to KP. I enjoy working at KP LAMC because of the diverse patient population, emphasis on patient-centered care and work-life balance, humble and thoughtful colleagues, and the opportunity to be a part of resident education. Teaching is one of the most fulfilling aspects of my job. I enjoy helping residents optimize their strengths as well as guiding them through the challenging moments throughout residency. I believe working with residents also helps me grow and challenges me to continue to learn through my career.

Joan Kho, MD
Associate Program Director - Outpatient Education

Undergraduate School: UC Berkeley
Medical School: New York Medical College
Residency Training: Internal Medicine Kaiser Permanente LAMC
About Me:  I am a graduate of the program in 2005 and have stayed on at LAMC in a blended outpatient and inpatient practice. I treasured my training experience and have been fortunate to be involved in resident training throughout my career. I am excited to take this larger role as Associate Program Director and pass on the joys and skills of outpatient medicine to our housestaff.

John Sim, MD
Director of Joint IM / Research Track

Undergraduate School: UCLA
Medical School: Rosalind Franklin University of Medicine and Science
Residency Training: Harbor UCLA
Chief Residency: Harbor UCLA
Fellowship Training: Nephrology, Kaiser Permanente LAMC
About Me: Dr. Sim is a nephrologist at the Kaiser Permanente Los Angeles Medical Center. He is the LAMC research chair and has headed physician research development since 2012. His research interests are in complex hypertension, glomerulonephropathies, polycystic kidney disease, chronic kidney disease, and patient safety. He sees referral patients given his expertise in glomerulonephritis and polycystic kidney disease. His work focuses on the risk factors, associations, and comparative effectiveness of management strategies to develop and implement more effective and efficient treatment methods. His findings in hypertension, glomerulonephritis, and CKD have led to several changes in care models at KPSC.

Tiffany Hogan, MD
Assistant Program Director, Wellness, EID, and Coaching

Undergraduate School: California State University, Long Beach
Medical School: Rutgers University
Residency Training: Internal Medicine Kaiser Permanente LAMC
Chief Residency: Internal Medicine Kaiser Permanente LAMC
Fellowship Training: Hematology/Oncology, UCLA
About Me: Dr. Tiffany Aline Hogan was born in New Orleans, Louisiana and grew up in Orange County, CA. After completing her undergraduate degree at Cal State University of Long Beach, she attended Rutgers Medical School in New Jersey. She went on to complete her Internal Medicine training at Kaiser Permanente Los Angeles Medical Center (LAMC) in 2012, where she stayed to serve as IM Chief Resident from 2012-2013, starting some new Residency traditions along the way. She then attended UCLA-David Geffen School of Medicine’s Hematology and Oncology fellowship training, graduating from the program in 2016. She returned ‘home’ to KP LAMC in 2016 to start her career as an Attending Hematologist Oncologist. Her research interests include investigating cancer care health disparities and implementing targeted interventions to achieve better health outcomes. She also serves as LAMC’s Equity, Inclusion and Diversity (EID) Physician Leader, with the goal of ensuring that every physician, trainee, nurse, staff member, and patient feels that they matter and belong here at LAMC. Broadly, she believes in the fight for health equity and access for all. She enjoys teaching and mentoring IM residents and Heme/Onc Fellows, traveling, hiking with her husband and two children, and perfecting her Jambalaya.

Cheng-Wei Huang, MD
Assistant Program Director, Research Initiatives

Undergraduate School: UC Berkeley
Medical School: University of Vermont
Residency Training: Internal Medicine Kaiser Permanente LAMC
About Me: I am originally from Taiwan and obtained my bachelors at UC Berkeley and MD at the University of Vermont College of Medicine. In 2019, I joined the staff as a hospitalist after completing my residency here at KP LAMC in internal medicine. Having been a benefactor and recent graduate of our training program, I truly believe we offer a unique training experience. Paralleling our comprehensive clinical exposure is the opportunity to be involved in hospital committees and QI work to see firsthand how one of the largest integrated health systems operate. At the same time, we have access to one of the most comprehensive electronic health records for research endeavors and the opportunity to perform system-wide analyses across 15 medical centers. All these opportunities are readily available to our trainees, whether you want to just get a flavor beyond the clinicals or are interested in operations or research in the future.

Jason Gilbert, DO
Assistant Program Director, Community Engagement

Undergraduate School: Brandeis University
Medical School: Western University
Residency Training: Internal Medicine Kaiser Permanente LAMC
Fellowship Training: Community Medicine Fellowship, Kaiser Permanente LAMC
About Me: Whether it be my time as a health educator in South Africa, or as an AmeriCorps intern in the homeless neighborhoods of San Francisco, I have always had a strong passion for community medicine. I recently completed a fellowship in community medicine at KP LAMC, working as a primary care provider at a number of free clinics in east LA, and starting a STEM internship program at KP LAMC, giving high school students exposure to careers in internal medicine. Working as a general internist at KP, I have the privilege to help improve our healthcare system at both an individual and community level, while educating our diverse doctors of the future!

Vang Kou Khang, MD, MBA
Assistant Program Director, Quality Improvement and Wellness Initiatives

Undergraduate School: Stanford University
Medical School: UCLA DGSOM
Residency Training: Internal Medicine Kaiser Permanente LAMC

Allison Sarmiento, DO
Assistant Program Director, Didactics and Study Plans

Undergraduate School: UC San Diego
Medical School: Western University
Residency Training: Internal Medicine Kaiser Permanente LAMC
About Me: As a fourth-year medical student I did an internal medicine sub-internship here at KP LAMC and knew that this was where I wanted to train. I was drawn to the residency culture, supportive environment, unique patient population and integrated healthcare system. I completed my internal medicine residency in 2020 and signed on to join the hospitalist group. I am grateful to be able to care for the Los Angeles community and share my passion for internal medicine with the residents. One of the best aspects of training and working at this medical center is the opportunity and time to explore your interests, whether its quality improvement, community engagement, EID, global health, research or teaching. In my time outside the hospital, I enjoy traveling, being outside, spending time with my family and relaxing with my dog.

Palak Shah, MD
Assistant Program Director, Medical Student Experiences

Undergraduate School: University of Oklahoma
Medical School: University of Oklahoma
Residency Training: Internal Medicine Kaiser Permanente LAMC
About Me: I trained as a resident at LAMC and joined the Downtown Los Angeles medical office as a primary care physician after graduation. Caring for a diverse patient population and engaging in high quality learning during residency gave me the knowledge I needed to pursue a career in evidence-based medicine with a patient centered focus. The camaraderie and support I received from my co-residents, attendings and program directors are the reasons I wanted to stay involved with the education and training of house staff.

Reynaldo H. Alonso, MD
Chief of Internal Medicine

Undergraduate School: Fordham University
Medical School: Albert Einstein College of Medicine
Residency Training: Internal Medicine, Jacobi/ Einstein
About Me: I came to Kaiser in 2017 after many years as a General Internist in Private Practice in The Bronx and after many years teaching residents in the Montefiore/Einstein Internal Medicine Residency program. I love the life I have had as an outpatient internist and am always excited to share my love or general internal medicine to young doctors.

Stefanie Wu, MD
Chief of Hospital Medicine

Undergraduate School: Cornell University
Medical School: University at Buffalo
Residency Training: Family Medicine, Kaiser Permanente LAMC
Fellowship Training: Geriatric Medicine: Kaiser Permanente LAMC
About Me: I joined the Hospitalist group after completing my residency and fellowship training here at Kaiser Los Angeles. We have the privilege of caring for patients in a high quality, patient-centered, multi-disciplinary team environment. I look forward working with residents closely in the inpatient setting and getting to know and guide them throughout their training.