Jonathan Yeh
PA
Location : Teaneck, NJ, USA
BIO
Jonathan Yeh is a first-generation immigrant from Taiwan who came to this country in pursuit of personal freedom and happiness.
Being a physician associate is my second career. Coming up through the ranks of sales and corporate management, Jonathan entered the healthcare arena with a desire to help less fortunate fellow world citizens. It's been a fulfilling journey as a PA and now he is at peace with his departed parents, his family and himself.
With extensive experience in the corporate world, Jonathan acts as a healer, counselor and facilitator to help patients in need, one at a time.
MASLD-MASH Content Featuring Jonathan
APP Insight: Common Questions from Patients About MASH
June 2025
In this video, Jonathan Yeh, PA, answers three of the most frequently asked questions about MASH—Metabolic Dysfunction–Associated Steatohepatitis—and offers practical advice for understanding and managing this progressive form of fatty liver disease. He begins by explaining what MASH is: an inflammatory, more advanced stage of MASLD (Metabolic Dysfunction–Associated Steatotic Liver Disease), driven by abnormal fat accumulation in the liver due to impaired fat transport. Jonathan then breaks down the treatment approach, emphasizing the importance of lifestyle modification—particularly diet and exercise. He highlights the benefits of a green Mediterranean diet, regular physical activity, and sustainable weight loss, which can improve or even reverse MASH in many patients. For individuals with more advanced fibrosis, pharmacologic treatment with resmetirom (Rezdiffra) may be indicated. This concise FAQ offers helpful guidance for patients and providers alike on tackling MASH with evidence-based strategies.
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Management of Life Style Modification
January 2025
This video focuses on the comprehensive management of patients with metabolic-associated steatohepatitis (MASH), emphasizing lifestyle modifications, dietary adjustments, and exercise strategies. Key topics include the importance of addressing risk factors like diet, exercise habits, and alcohol intake, as well as referrals to medically supervised weight loss clinics or bariatric surgery for advanced cases. The speaker highlights the benefits of the Mediterranean diet, intermittent fasting, and avoiding ultra-processed foods while discussing the role of resistance training to combat sarcopenia and maintain muscle mass. Practical advice and tailored recommendations ensure a holistic approach to managing MASH and improving patient outcomes.
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Third Step of Life Style Management
January 2025
This video provides a comprehensive overview of emerging pharmacologic treatments for metabolic-associated steatohepatitis (MASH) and their tailored applications based on patient profiles. Topics include FDA-approved therapies, drugs in advanced clinical trials (such as semaglutide and lanifibranor), and the potential for combination treatments targeting both steatohepatitis and fibrosis. The speaker emphasizes the importance of patient-specific approaches considering metabolic profiles, obesity, and diabetes status, alongside lifestyle interventions. Additionally, the video discusses the evolving interdisciplinary care model and highlights the exciting progress in non-invasive testing and treatment advancements for F2-F3 fibrosis.
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Approved Medication for MASH/NASH
January 2025
This video provides detailed guidance on selecting and monitoring patients for emerging therapies targeting advanced fibrosis (F2-F3) in NASH. Key topics include contraindications for patients with cirrhosis, considerations for concomitant medications, and dose adjustments for statins. The video outlines ideal candidates based on specific thresholds for VCTE, MRE, ELF scores, and other non-invasive tests while emphasizing the importance of ruling out portal hypertension and other liver diseases. It also reviews a stepwise monitoring approach, focusing on tolerability at three months and efficacy assessments at six and twelve months, with an emphasis on histologic and non-invasive test improvements.
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Types of Diet for the Treatment of MASLD
January 2025
This video explores comprehensive strategies for managing metabolic-associated steatohepatitis (MASH), focusing on fibrosis risk stratification, lifestyle modifications, and pharmacologic interventions. Learn about dietary recommendations like the Mediterranean diet, exercise guidelines emphasizing resistance training, and the role of intermittent fasting and processed food avoidance. The video also highlights weight loss targets, diabetes management, and emerging therapies such as GLP-1 receptor agonists and bariatric surgery, all aimed at improving liver health and patient outcomes.
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NITs to Identify High Risk MASH Patients
January 2025
Explore advancements in non-invasive diagnostics and risk stratification for liver fibrosis and MASH. This video highlights tools like FIB-4, transient elastography, and innovative scoring systems (e.g., FAST and Agile) to identify and predict outcomes for high-risk patients. Learn about serum biomarkers, updated guidelines, and the role of lifestyle interventions alongside targeted therapies for managing metabolic risks and advancing care in hepatology.
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How is MASH severity staged? What would an ideal MASH NIT algorithm look like?
January 2025
Thank you to Madrigal for sponsoring this FAQ Video Module. In this GHAPP FAQ Video Module, Jonathan Yeh, a physician assistant at the Center for Liver Disease and Transplantation at Columbia University Irving Medical Center, discusses advancements in diagnosing and staging metabolic dysfunction-associated steatohepatitis (MASH). He explains the transition from traditional liver biopsy to non-invasive testing methods such as FibroScan and the Enhanced Liver Fibrosis (ELF) test for assessing fibrosis stages. Jonathan highlights the use of these methods, in combination with blood tests, to provide reliable staging of fibrosis in patients with MASH. For more information, visit the GHAPP website or ACE app.
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MASH Bootcamp Q&A
March 2025
In this interactive Q&A session, a panel of liver disease experts discusses key challenges in diagnosing and treating metabolic dysfunction-associated steatohepatitis (MASH) using non-invasive testing and the latest therapeutic advancements. The panel explores the role of FibroScan, ELF scores, and cardiometabolic risk factors in diagnosing fibrosis, especially in patients with limited access to MRI or VCTE-based assessments. They also discuss how serologic testing can be a viable alternative in resource-limited settings and when a liver biopsy may not be necessary for diagnosis. The discussion highlights the FDA approval criteria for Resmetirom, its limitations in F4 patients, and practical strategies for determining treatment eligibility. The experts address real-world challenges, including diagnosing MASH in rural areas, evaluating confounding factors in fibrosis assessment, and ensuring comprehensive liver disease workups to rule out autoimmune conditions.
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Lifestyle Modifications for Patients With MASH
March 2025
In this engaging presentation, Jonathan Yeh, PA, from the Center for Liver Disease and Transplantation at Columbia University, explores the critical role of lifestyle modifications in managing metabolic dysfunction-associated steatohepatitis (MASH). He breaks down the pathogenesis of MASH, explaining how obesity, diabetes, and metabolic dysfunction drive disease progression from steatosis to fibrosis and cirrhosis, and why weight loss and exercise are essential for reversing liver damage. Jonathan highlights the impact of dietary interventions, including the Mediterranean diet, low-carb approaches, and ketogenesis, while emphasizing the importance of calorie restriction over simply eliminating certain food groups. He also discusses the role of exercise, comparing the effectiveness of aerobic training, resistance training, and high-intensity interval training (HIIT) for improving liver health. Surprisingly, research suggests that resistance training may be just as beneficial as aerobic exercise while being more accessible to patients with physical limitations. The discussion also touches on the latest weight loss treatments, including GLP-1 receptor agonists like semaglutide and tirzepatide, which are rapidly transforming obesity management. However, Jonathan underscores that medications alone are not a solution—sustainable lifestyle changes remain the foundation of MASH treatment.
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Addressing Health Disparities: Equity Considerations in MASH/MASLD Care
July 2025
In this episode, Patrick Horne, NP at the University of Florida (UF Health), explores the impact of health disparities and socioeconomic inequality on the diagnosis and management of MASH (metabolic-associated steatohepatitis) and MASLD (metabolic dysfunction-associated steatotic liver disease). With a focus on rural and underserved populations, Patrick discusses how limited access to quality healthcare, healthy food, exercise options, and non-invasive testing (NITs) like FibroScan or MRI elastography can delay diagnosis and worsen outcomes. He shares practical, empathetic strategies for individualizing care, such as using accessible tools like FIB-4 or APRI, promoting low-cost physical activity like walking or swimming, and providing culturally sensitive nutrition advice tailored to financial and geographic realities. Patrick emphasizes the provider’s role as a patient advocate and coach, helping patients navigate barriers and create sustainable lifestyle modifications. This episode offers key insights for clinicians working to close gaps in care and promote equity in liver disease management.
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Pharmacotherapy Review
July 2025
Join Christina Hanson, FNP-C, from South Denver Gastroenterology, as she provides an in-depth overview of the current pharmacologic treatment landscape for Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD) and Metabolic Dysfunction-Associated Steatohepatitis (MASH). This expert-led session explores the three cornerstones of MASH management—lifestyle and weight loss interventions, cardiovascular risk reduction, and liver-directed therapy—while highlighting the evolving role of GLP-1 receptor agonists and the recent FDA approval of resmetirom, the first medication indicated for adults with MASH and moderate to advanced fibrosis. Christina also discusses clinical trial data from MAESTRO-NASH, reviews historical agents like vitamin E and pioglitazone, and offers practical guidance on patient selection, safety considerations, and monitoring strategies. Whether you’re a GI provider, hepatology specialist, or primary care clinician managing fatty liver disease, this video provides valuable insights into how emerging therapies are shaping the future of MASH treatment.
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Liver Model Overview
July 2025
Join Alison Moe, PA-C with United Digestive, as she walks through a hands-on demonstration using a life-sized liver model to help patients better understand fibrosis and liver disease progression. In this engaging and practical overview, Allison explains how different stages of liver fibrosis—from normal liver to cirrhosis and hepatocellular carcinoma—can be felt and visualized using a segmented anatomical model. She shares how this tool enhances patient education during discussions about non-invasive liver testing, such as FibroScan, CAP scores, FIB-4, ELF testing, and more. Designed to support visual learners and improve comprehension of disease state, this video is a valuable resource for clinicians and patients navigating the complexities of metabolic-associated fatty liver disease (MASLD) and its progression to MASH. Learn how tactile and visual teaching aids can bridge the gap between diagnostics and patient understanding in hepatology care.
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Differentiating Between F3 and F4
July 2025
In this comprehensive discussion, HoChong Gilles, a nurse practitioner with 25 years of hepatology experience at the Richmond VA Medical Center, explores the critical importance of accurately distinguishing between F3 (advanced fibrosis) and F4 (cirrhosis) in patients with MASH (metabolic-associated steatohepatitis). While both stages carry increased risks of liver-specific and overall mortality, Gilles explains that F3 may still be reversible with lifestyle changes or pharmacotherapy, whereas F4 signals irreversible liver damage with heightened risk of complications like portal hypertension, hepatic encephalopathy, and liver cancer. Viewers will gain a deeper understanding of how non-invasive tests—like FIB-4, ELF, FibroScan, and MRE—perform in identifying fibrosis stage, including their limitations and overlaps. Gilles also outlines when to consider liver biopsy, especially in cases with discordant test results, atypical features, or clinical uncertainty. This video emphasizes how staging accuracy informs eligibility for therapies, surveillance strategies like HCC screening, and overall prognosis. Learn how to approach this nuanced distinction in clinical practice and why F3 vs. F4 isn't just semantics—it's a turning point in patient care.
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Podcast: Role of Exercise in Liver Health
June 2025
In this engaging episode of the GHAPP MASLD/MASH Community Network podcast, Jonathan Yeh, PA at Columbia University Medical Center, discusses the essential role of exercise in liver health—especially in managing MASLD (Metabolic Dysfunction–Associated Steatotic Liver Disease) and MASH (Metabolic Dysfunction–Associated Steatohepatitis). With over 14 years of hepatology experience, Jonathan breaks down the most effective types of physical activity, highlighting the benefits of combining aerobic and resistance training over high-intensity interval training (HIIT) alone. He provides practical, personalized exercise recommendations tailored to patients’ physical abilities, access to resources, and comorbidities—including suggestions for those with mobility limitations or time constraints. Jonathan also offers motivational strategies to help patients overcome common barriers such as lack of time, motivation, or access to fitness facilities. From parking farther from a destination to lunchtime walks and home-based workouts using resistance bands, he emphasizes creative and realistic ways to build physical activity into daily routines. Beyond weight loss, he explains how exercise directly improves liver function by reducing liver fat, enhancing insulin sensitivity, and preventing fat and sugar buildup in the liver. This episode is a must-watch for clinicians and patients alike seeking to understand and implement exercise as a cornerstone in the management of fatty liver disease.
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Highlighted Events
GHAPP Eighth Annual Conference
September 04 @ 12:00 pm - September 06 @ 12:00 pm MDT
About the 2025 GHAPP Conference The GHAPP conference is the only conference specifically designed by advanced practice providers (APPs) for the pur..
New Innovations in Gastroenterology and Liver Disease 2025 Conference
September 27 @ 12:00 pm - 12:00 pm EST
This conference will give participants a comprehensive outlook on cutting-edge developments in diagnosing, treating, and preventing digestive and live..
GHAPP Regional
October 16 @ 12:00 pm - 12:00 pm EST
Location: Westin New York Times Square Speakers: Jonathan Yeh, PA-C Columbia University Victoria Howard, PA-C University of Rochester M..