ADVANCED PRACTICE NURSES

Michelle Coffey, MSN, APRN, ACNS-BC

Chief Clinical Officer

Michelle received her RN and MSN as an Adult Health Clinical Nurse Specialist from UT Austin. She joined Austin Geriatric Specialists in 2011 greatly enjoys practicing in geriatrics and palliative care and promoting quality of life for frail elders. In her spare time, Michelle enjoys traveling, home design, and spending time with her husband and three young children.

Stacey Hamilton, MSN, APRN, GNP-BC

Clinical Director of Population Health

Stacey has been part of Austin Geriatric Specialists since 2002 after receiving her Geriatric Nurse Practitioner certification from UTMB in Galveston. Originally from Dallas, she received her BSN from UT Austin in 1983 and began a 15 year career at Seton Medical Center. Outside of work she is an avid runner and looks forward to spending time with her grandchildren.

Ryan Carpenter, MSN, APRN, AGCNS-BC

Clinical Director of Assisted Living

Ryan is a board-certified Adult Gerontology Clinical Nurse Specialist with a master’s degree in nursing from the University of Texas at Austin. He is a member of the AAPN, NACNS, and Sigma Theta Tau National Nursing Honor Society. During his two year orthopedic rotation, Ryan trained under two top orthopedic surgeons in Austin, where he earned his surgical first assistant certification. With this, he brings wealth of knowledge and experience in Sports Medicine and management of acute and chronic orthopedic conditions affecting the geriatric population. Prior to returning to school, Ryan obtained a Bachelor of Science in Biology at UT Austin. As a two-time UT graduate, he is a proud Longhorn who loves sharing the Central Texas outdoors with his wife and two boys.

Michelle Murray, APRN, GNP-BC, ACHPN

Clinical Director of Palliative Care

Michelle received a Bachelor of Science in Health at Texas A&M Univ., prior to attending UT Health Science Center for a degree in Nursing.  Her background is focused in geriatrics, most extensively in hospice. She served as a Director of Nursing of a local hospice while obtaining her MSN at UT Medical Branch. As a Geriatric Nurse Practitioner her experience has included hospital, post-acute & home based care.  She is an Advanced Certified Hospice and Palliative Nurse (ACHPN) and is passionate about palliative/end-of-life care and helping patients and families during that transition.

Mary Mann, APRN, GNP-BC

Clinical Director of House Calls

Mary graduated with a BSN in nursing from the University of Mary-Hardin Baylor in 1986. She gained experience in the Cardiac Intesive Care Unit and also as a hospital supervisor before returning to school to get her MSN. She graduated in 2000 from the University of Texas at Arlington with a dual degree in Adult and Geriatric care, and continues to hold duel certifications as an Adult and a Geriatric Nurse Practitioner. She has gained further education and experience and is now an ACHPN, Advanced Certified Hospice and Palliative Nurse. She is passionate about excellent care of all people, especially of our oldest citizens. She is married and loves caring for her grandson and mother who live with she and her husband.

Oralia Diaz, MSN, APRN, ACNS-BC

Oralia is an Adult Clinical Nurse Specialist who joined Austin Geriatric Specialists in 2014.  She had over 5 years experience working with geriatric patients in skilled nursing facilities in central Texas.  She lives in Cedar Park with her husband and has traveled extensively.

Mary Gomez, MSN, APRN, AGCNS-BC

Mary received her RN and MSN from the University of Texas at Austin and is a board certified Adult Gerontology Clinical Nurse Specialist. Her background is primarily in post acute and long term care where she particularly enjoys working with the geriatric population and palliative/end of life care. She has been with Austin Geriatric Specialists since 2015 and finds balance by getting outdoors with her husband and two young children.

Haiyan Liu, MSN, APRN, ACNS-BC

Haiyan received her BSN from the University of Texas at Austin in 2003 and worked for 5 years on the cardiovascular floor at Seton Medical Center. She then received her MSN from the University of Texas at Austin in 2008. She is a certified Adult Clinical Nurse Specialists who worked in cardiovascular disease management for Austin Heart for 2 years before turning her focus toward the geriatric population and joining Austin Geriatric Specialists in the spring of 2010.

Beth Lynn, MSN, APRN, AGCNS-BC

Beth received her undergraduate degree in education from Texas Tech University. She earned her Master’s Degree in Nursing from The University of Texas at Austin, and completed a clinical rotation at MD Anderson Cancer Center in Houston. Beth is a board-certified Adult-Gerontology Clinical Nurse Specialist, and is a member of Sigma Theta Tau International Honor Society of Nursing. Prior to joining the practice, Beth worked in the field of endocrinology. She enjoys gardening, boating on area lakes, and especially spending time with her husband and son.

Lynda Noll, MSN, APRN, ANP-BC, CHPN

Lynda received a BSN from The Ohio State University and has been a practicing nurse for over 30 years. She graduated from University of Texas Medical Branch with a post Masters certificate and is board certified as an Adult Nurse Practitioner. Most recently she has worked with elderly in the home setting in the Greater Austin area. She comes to AGS with experience and specialty certification as a Hospice and Palliative Nurse (CHPN).

Jordan Sondgeroth, MSN, APRN, ACNS-BC

Jordan received her RN and MSN from the University of Texas at Austin. She is a certified Adult Clinical Nurse Specialist who has worked in family practice and long term care, taking care of both ambulatory and frail elders since her graduation. She has been with Austin Geriatric Specialists since 2012 and enjoys promoting quality of life in geriatrics.

Dongli Xiao, MSN, APRN, FNP-C

Dongli is a board-certified Family Nurse Practitioner (FNP-C) accredited by the American Academy of Nurse Practitioners. She graduated with a Master’s degree from UT Health Science Center San Antonio and joined AGS in 2015.Prior to becoming a Family Nurse Practitioner, Dongli worked as a Registered Nurse at South Austin Medical Center and Seton Northwest Hospital for six years specializing in medical-Surgical and Telemetry nursing. Dongli is passionate about Geriatric medicine and focuses her practice on helping frail elders. She lives in Austin with her husband and two children. In her spare time, she enjoys gardening, cooking, traveling, and spending time with her family and friends.

Ping Ye, MSN, APRN, ACNS-BC

Ping graduated from the University of Texas at Austin with a MSN in nursing in 2007. She is a certified Adult Clinical Nurse Specialists who has worked primarily in long term care, taking care of frail elders since her graduation. She joined Austin Geriatric Specialists in May 2009 and continues to focus her practice in the area of Geriatrics.

Arlene Meyer, APRN, MSN, AGCNS-BC

Arlene is a board-certified Adult Gerontology Clinical Nurse Specialist with a master’s degree in nursing from the University of Texas at Austin. She really enjoys working with the aging population by providing patients holistic care, counseling to patients and families about disease processes, supporting staff nurses, and ensuring quality of care. Prior to joining the team at AGS, she worked as a registered nurse in critical care. She also obtained a Bachelor of Interior Design from Texas Tech University. In her spare time Arlene enjoys hiking with her dog Clementine, DIY projects, traveling and spending time with friends and family.

Susan Chen, APRN, MSN, FNP-C

Susan is a board certified Family Nurse Practitioner.  She obtained her bachelor's degree in nursing at San Francisco State University in 2008.  She worked for many years as an RN at St. David's Medical Center South Austin before deciding to pursue her master's degree in nursing at the University of Texas Health Science Center in San Antonio, graduating in 2015 and joining Austin Geriatric Specialist in 2016.

Joyce Tseng, APRN, MSN, AGCNS-BC

Joyce is an advanced practice registered nurse and Adult Health-Gerontology Clinical Nurse Specialist - board certified. A proud Taiwanese-American, born and raised in Texas, Joyce is a two time graduate of The University of Texas at Austin. Joyce is a member of the Austin Advanced Practice Nurses Association and Sigma Theta Tau. Through her work, Joyce offers a holistic, patient-centered approach with a focus on health promotion, acute and chronic disease management, and patient education. Prior to joining AGS in 2017, Joyce has worked in Skilled nursing facilities, long term care, and home health/transitional care. She has a passion for geriatric care and palliative care. In her downtime, Joyce enjoys hiking, gardening, and spending time with her family, friends, her dogs and chickens.

Heather Gilcrease MSN, APRN, FNP-C

Heather is a board-certified Family Nurse Practitioner with a master’s degree in nursing from Texas State University. Prior to pursuing her master’s degree, she worked for 7 years as a registered nurse caring for hospitalized patients. Heather developed a passion caring for geriatric patients early in her career. She values providing individualized, holistic care throughout the lifespan including end of life and palliative care. 

Allison Russell, MSN, APRN, FNP-C

Allison is a Family Nurse Practitioner certified by the American Academy of Nurse Practitioners. She graduated with a Bachelor of Science in Nursing from Texas Tech University Health Sciences Center and Master of Science in Nursing from the University of Texas at Tyler. Prior to joining Austin Geriatric Specialists in 2017, she worked as a registered nurse in critical care.  As a native Austinite, Allison has a strong commitment to serving the healthcare needs of our growing community.

Sam Morgan, APRN, DNP

Sam is a Doctor of Adult/Geriatric Nursing Practice. Sam graduated from the University of Michigan-Flint in 2017. Prior to joining the Austin Geriatric Specialists team, Sam had a 10-year history as a registered nurse in the skilled nursing and long-term care environment, and continues to have a passion for providing individualized and evidenced-based healthcare to the geriatric community. When he is not working, Sam enjoys all sports, traveling, reading, and spending time with family.

Heidi Kook-Willis, MSN, APRN, AGNP-C

Heidi is a board certified Adult Gerontology Nurse Practitioner with a Master’s of Science in Nursing from UT Medical Branch at Galveston. During her 15 years of nursing experience, which includes ICU, cardiology, hospice and palliative care, she developed a passion for Geriatric and Palliative medicine.
Her practice focuses on using a holistic approach to maximize health and quality of life in the older adult population. She considers it a privilege to support and care for patients and families as they navigate the challenges of aging and chronic illness. In her spare time, she enjoys volunteering at a free medical clinic, running, traveling, and enjoying the best of Austin’s food and music with her husband, two kids, and dog.

Hong-Ngoc Pham, MSN, APRN, AGCNS-BC

Hong is a board-certified Adult-Gerontology Clinical Nurse Specialist. She obtained her RN and MSN from the University of Texas at Austin. Prior to joining Austin Geriatric Specialists, Hong worked in the field of oncology. She has a long-held interest in health promotion and wellness since serving as a Peace Corps Health Volunteer in 2008-2010. Hong is passionate about providing compassionate, evidence-based and holistic care to aging individuals. She enjoys traveling, spending time her friends and family, and is an outdoor enthusiast. 

Marci Landin, MSN, APRN, AGPCNP-BC

Marci obtained degrees in psychology and biology before obtaining her Bachelor’s of Science in Nursing through Texas Tech’s accelerated BSN program. She worked as a bedside nurse in critical care before pursuing her Master’s degree in Nursing from the University of Texas Medical Branch Galveston. She is a board certified Adult-Gerontology Primary Care Nurse Practitioner (AGPCNP) with a special interest in geriatrics and research. Marci is excited to join Austin Geriatric Specialists and work with this population whom, she feels, deserve individualized and holistic care that is delivered in a compassionate and dignified manner. When Marci is not working she enjoys traveling, trying out new restaurants, and spending time with her husband and two daughters.

Tori Clements, MSN, APRN, AGPCNP-BC

Tori is a board certified Adult Geriatric Primary Care Nurse Practitioner.  She obtained her Master of Science in Nursing from The University of Texas Medical Branch in Galveston.  She worked as a Registered Nurse for 16 years in Houston, Texas, her hometown.  She considers it an honor and a privilege to care for aging individuals.  She enjoys spending time with her husband, and two daughters, while exploring Central Texas and boating on the beautiful lakes.

Nona Mason, MSN, APRN, FNP-C

Nona is a certified family nurse practitioner through the American Association of Nurse Practitioners.  She practiced as an RN in the hospital setting for over 20 years in multiple areas that include hemodialysis, medical surgical, pre-operative and post-operative care units, endoscopy, and imaging/special procedures.  For the last two and a half years, she has continued her work in the medical field as a provider in the areas of family practice, internal medicine, and as an FNP/hospitalist in a rural healthcare setting, and she is proud to join the AGS team.  Nona is an amateur photographer and particularly enjoys shooting nature scenes.  She also enjoys yoga, gardening, writing, hiking, and camping as well as taking full advantage of the music scene in and around Austin with her husband, Daniel.

Audra Puffer, MSN, APRN, FNP-C

Audra is a board-certified Family Nurse Practitioner with a master’s degree in nursing from the University of Texas at Austin. Prior to pursuing her master’s degree, she worked for 4 years as a registered nurse caring for hospitalized patients. Audra is passionate about providing compassionate, evidence-based and holistic care to the geriatric population. In her spare time, she enjoys spending time with her friends and family, reading, and exploring more of Austin.

Rachel Bell, MSN, APRN, FNP-C

Rachel is a board certified Family Nurse Practitioner who received her Masters of Science in Nursing from Texas Tech University Health Sciences Center, and is a member of Sigma Theta Tau International Honor Society. Prior to joining Austin Geriatric Specialists, Rachel received her Bachelors of Science in Nursing from the University of Texas Medical Branch in Galveston. She joined our practice with over 16 years of experience as a critical care registered nurse.  As a native Austinite, Rachel is passionate about providing dignified holistic care, while treating acute and chronic conditions for the aging population in our community. In her spare time, she enjoys watching her two son’s play in various sporting activities, and traveling with her husband and children to exciting new places.

Jason Schoneman, MSN, APRN, AGCNS-BC

Jason is a board certified Adult Gerontology Clinical Nurse Specialist with a MSN from UT at Austin. He has a strong desire to provide high quality, compassionate, and holistic care to patients in many settings. He especially has a fondness for working with the elderly. As an APRN, Jason has extensive experience working in acute care settings with a passion for managing infectious diseases. His background as a medicinal plant biologist with broad experience working with indigenous/rural living groups in many countries influences his interest in holism and care amended to cultural context. He spends his free time observing and enjoying nature with his wife in their garden and when they are traveling in Texas and abroad.

Joan Lange, MSN, APRN, AGNP-C

Joan came to Austin Geriatric Specialists after completing an Advanced Care Fellowship at Carolinas Medical Center in Charlotte, North Carolina.  She graduated from Texas Women’s University in 2013 where she served as a research assistant studying care for post-operative mastectomy patients and participated in a cross-cultural comparative study of women’s health care in southeast Asia.  Before graduate school she gained extensive experience in hospice and palliative care while practicing in a dozen states from Hawaii to Massachusetts.  She obtained her Bachelor of Science degree from Olivet Nazarene University in her home state of Illinois and is a lifelong Cubs fan.

Susan Burrow, MSN, APRN, AGACNP-BC

Susan received her BSN at University of Texas at Arlington in 2015 and her Adult Gerontology/ Acute Care Nurse Practitioner at Walden University in Minnesota in 2017. She is originally from Orlando, Florida and moved to Austin in 2006. She has worked at Seton Medical Center for over 12 years working an acute care nurse on the cardiology floor. She really enjoys working with the aging population and has joined the Austin Geriatric Specialists team to pursue this dream. She enjoys reading, cooking and spending time with her partner and two kids.

David Witty, MSN, APRN, FNP-C

David is a board-certified Family Nurse Practitioner with a master’s degree in nursing from The University of Texas at Austin.  Prior to completing his studies at UT Arlington, he received certifications in advanced wound and ostomy management. He has worked in the wound and ostomy department at South Austin Medical Center managing chronic wounds, traumatic injuries, ostomies, and fistulas. His clinical interests include diabetes & endocrinology, orthopedics, and functional medicine.  In his spare time, he enjoys hikes with his dog, cooking, gardening, traveling, and working on his house.

Angela Henninger, MSN, APRN, FNP-C

Angie is a board-certified Family Nurse Practitioner with a Masters of Science in Nursing from Texas State University at Round Rock. Prior to joining Austin Geriatric Specialists, Angie was a Registered Nurse for 15 years with a background in pre and post-surgical care, Oncology, and Hospice. She enjoys caring for and working with her patients and their families to provide evidence-based, holistic care that is compassionate and aims to increase quality of life. When she is not working, she enjoys spending time with her husband and daughter going to movies, enjoying good food, and cheering her daughter on at volleyball games.

Jennifer Ulliman, MSN, APRN, FNP-C

Jennifer is a board-certified Family Nurse Practitioner through the American Association of Nurse Practitioners. She received her master’s degree through Texas State University and joins the AGS team in 2019 with 8 years of experience as a critical care registered nurse. She received her Bachelor of Science in Nursing from the University of Kentucky. Her passion has always been working with the geriatric population to provide holistic, evidenced-based care. In her spare time, Jennifer enjoys running, traveling, spending time with her friends, cheering on her Kentucky Wildcats in basketball, and playing with her dog, Chloe.

Liliana Damron, MSN, APRN, FNP-C

Lili is a board-certified Family Nurse Practitioner with a Master of Science in Nursing from Texas State University. Lili joins AGS team with 4 years of experience as a critical care registered nurse. She double majored and received her Bachelor of Science in Nursing and Business Administration from Tarleton State University. Lili has always been passionate about caring for the adult and geriatric population and is also fluent in Spanish. In her spare time, she enjoys painting, paddle boarding, hydroponic gardening and spending time with her husband and their two dogs.

Adam Brunson, MSN, APRN, AGCNS-BC

Adam is a board-certified Adult Gerontology Clinical Nurse Specialist with a Master’s degree in Nursing from the University of Texas at Austin.  Prior to a career in advanced practice nursing, Adam served as a local pastor in the Austin area for 10 years.  As a pastor, he recruited nurses, doctors and pharmacists to run mobile clinics in villages in rural India and Haiti, which is a passion of his.  Adam shares the sensitivity of many in this field that elder-care is of critical importance.  He approaches his work with compassion, integrity and with a focus on quality of care.  He is proud of his 3 beautiful daughters and enjoys time with his wife.  He is often reading, gardening and volunteering outside of work.

Kim Nunez, APRN, NP-C

Kim is a board-certified Adult Nurse Practitioner who specializes in the care of older adults with chronic health issues.  She holds her board certification from the American Academy of Nurse Practitioners and is licensed by the State of Texas. She earned both her bachelor’s degree and master’s degree in nursing at the University of Texas Health Science Center in Houston, Texas.  

Prior to becoming a nurse practitioner, Kim gained experience in critical care as a registered nurse.  She is passionate about working with the older population. In her free time, Kim enjoys spending time with family and friends, boating, and reading.

Emily Wallace, APRN, FNP-C

Emily is a board certified Family Nurse Practitioner  accredited by the American Academy of Nurse Practitioners. Emily received her Bachelor’s and Master’s in nursing from Texas A&M University. Prior to joining Austin Geriatric Specialists, Emily worked as a critical care nurse for eight years specializing in trauma and surgical patients.  She developed a love for geriatric care throughout her nursing career. Emily’s mission is to deliver exceptional patient-centered care across the lifespan that focuses on health promotion, disease prevention, and empowers individuals to become actively involved in their health care choices.In her free time, Emily enjoys spending time outside with her husband, son, and two dogs.

Sarah McBride, MSN, APRN, AGCNS-BC 

Sarah is a board-certified Adult-Gerontology Clinical Nurse Specialist with a master’s degree in Nursing from the University of Texas at Austin. She is originally from Wisconsin and moved to Austin in 2010. She worked as a register nurse in critical care and transitioned to the field of wound care and hyperbaric medicine once becoming an APRN. Sarah has always felt a connection to the geriatric patient population and has a desire to provide holistic and compassionate care within this population. In her spare time, Sarah enjoys spending time with her husband and son, hiking with her dog, and exploring the ever-growing city of Austin with her friends.

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