BIO

Summer Collier is a nurse practitioner with advanced expertise in hepatology and a strong commitment to evidence-based, multidisciplinary care. At UC San Diego Health, she provides comprehensive management for patients with chronic liver disease, including viral hepatitis, autoimmune hepatitis, alcohol-associated liver disease, and metabolic dysfunction–associated steatotic liver disease (MASLD).

Collier is actively engaged in clinical research and has participated in multidisciplinary studies on liver fibrosis, steatosis, and treatment protocols for hepatitis C and alcohol use disorder. Her scholarly work focuses on improving transitions of care for patients with cirrhosis and expanding access to pharmacologic treatments for patients with alcohol use disorder.

A recognized leader in the field, Collier has presented at national conferences including The Liver Meeting (AASLD), Digestive Disease Week (DDW), and GHAPP, speaking on topics such as cirrhosis care, hepatology red flags, and advanced practice provider leadership. She previously served as Chair of the Advanced Practice Council at UC San Diego Health, driving initiatives that elevated APP visibility and impact within the organization.

Before joining UC San Diego Health, she was a family nurse practitioner and HIV specialist with Family Health Centers of San Diego. She also has prior experience as a registered nurse.

Collier completed a Master of Science in Nursing degree from University of San Diego and will complete the Doctor of Nursing Practice degree from University of California, Los Angeles in June 2025. She is certified by the American Nurses Credentialing Center.

MASLD-MASH Content Featuring Summer

Related Content

Serological Workup: A Step-by-Step Guide

July 2025

In this comprehensive video, Sherona Bau, NP from UCLA, breaks down the essential hepatology workup for patients with MASLD (formerly NAFLD) and MASH, offering guidance for both primary care providers and GI/hepatology specialists. Drawing from her extensive clinical experience, she outlines a systematic approach to evaluating abnormal liver ultrasound findings—starting with critical labs to rule out chronic liver conditions like hepatitis B, hepatitis C, autoimmune hepatitis, PBC, and hereditary hemochromatosis. Sherona discusses the importance of ordering ANA, AMA, ferritin, serologies, and even specialized labs like the phosphatidylethanol (PEth) test to uncover alcohol-related liver disease that may be overlooked. She emphasizes the need to screen for cardiometabolic risk factors including type 2 diabetes and dyslipidemia and highlights non-invasive tests such as FibroScan and FIB-4 to help identify patients at risk of advanced fibrosis who may benefit from specialist referral. Most importantly, Sherona addresses the fears many patients face around liver disease progression and life expectancy, encouraging early intervention and coordinated care to improve long-term outcomes. This video is a must-watch for any clinician managing steatotic liver disease.

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MASH/MASLD in Type 2 Diabetes: Concurrent Medication Management

July 2025

In this informative episode, Whitney Steinmetz, NP from Presbyterian Medical Group in Albuquerque, NM, explores how to optimize medication strategies for patients with type 2 diabetes who are also living with MASLD and MASH. She discusses why individuals with type 2 diabetes are at significantly higher risk for developing advanced liver fibrosis—highlighting the overlapping metabolic, inflammatory, and insulin-resistant pathways that accelerate liver damage. Whitney breaks down how commonly prescribed diabetes medications—like GLP-1 receptor agonists, SGLT2 inhibitors, TZDs, and dual/triple incretins—impact liver fat, inflammation, and fibrosis progression. She offers practical guidance on selecting therapies that balance glycemic control with hepatic benefits while minimizing polypharmacy. Learn which medications may offer dual cardiometabolic and hepatic advantages, and which should be avoided or used with caution in patients with cirrhosis or advanced fibrosis. Tune in for real-world insights into how advanced practice providers can take ownership of MASH management in diabetes care.

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