Dr. Mary Margaret O'Neil, MD
Board Certified in Rheumatology and Acupuncture

Dr. Mary Margaret (Molly) O’Neil is a native of Western New York and has practiced Rheumatology in the Buffalo area for 17 years. She is a graduate of the St. Louis University School of Medicine, she completed a residency in Internal Medicine through the State University at New York (SUNY) Buffalo program at Millard Fillmore Gates Hospital and she also completed her final fellowship in Rheumatology at the Cleveland Clinic.

Over the years of her practice, Dr. O’Neil has developed a keen interest in alternative medicine and is a leading advocate for whole-person wellness as a treatment option for Rheumatology patients. She is not only board certified in Rheumatology, but she is also a certified acupuncturist.

Specializing in both traditional and whole-person treatment methods, Dr. Mary Margaret O’Neil focuses on overall wellness and improved quality of life for her patients. While medications and traditional treatments are absolutely appropriate in many cases, she is the only Rheumatologist in Western New York that is licensed in acupuncture. She has also completed Applying Functional Medicine in Clinical Practice from the Institute of Functional Medicine. Dr O’Neil has trained in several meditation modalities including MBSR (mindfulness based stress reduction).

Dr. O’Neil’s practice is centered around the belief that from arrival to departure, all patients are entitled to a comfortable, efficient and positive treatment experience.

Dr. O’Neil is proud to live and work in Western New York. She often speaks at medical and community gatherings and shares her spare time with her husband and four children. She happily proclaims herself to be a soccer/dance/piano lesson mom.


J. Cairn Marrale, NP, PhD (retired)

Cairn was born and raised in a small Western New York village, graduated from Attica High School and relocated to Buffalo to attend Nursing School. After graduating from nursing school, Cairn worked for the next 10 years in the emergency room of what was Edward J. Meyer Memorial Hospital. In the meantime, she married and left that position when her son was born. She and her husband adopted a daughter and after the children were in school she returned to her nursing career and attended UB where she earned her BSN, MSN and subsequently a PhD in Medical Sociology. Cairn worked as a Nurse Practitioner in a Primary Care office until she was recruited to teach in the Masters NP Program at UB. During that time, she wrote a grant for an Occupational Health Nurse Practitioner Program which was funded and students were enrolled for the next 3 years. Cairn decided not to renew the grant and instead took time off to complete her PhD. Shortly thereafter she was recruited to work at Buffalo Rheumatology where she spent the next 22 years.

Cairn prides herself in being a patient advocate and being able to assist those who are in need of physical, emotional and spiritual help. She particularly enjoys people, especially children, gardening and playing her saxophone in the Worship Team at her church.

Cairn retired in June 2018 to pursue her many other interests and charitable endeavors. We begrudging allowed this!

She will be greatly missed but her presence lives on at Rheumatology Wellness Care.


Jennifer Barwell, PA-C, MPAS 

Jennifer is a graduate of the Daemen College Physician Assistant program in Amherst, NY. After graduation, she successfully completed the Physician Assistant National Certification Exam. Jen worked for over nine years in family practice, during which time she gained a wealth of experience in treating the patient 'as whole person'. Jen made the transition to rheumatology in 2017 and has enjoyed the opportunity to integrate her experience in this specialty with strong focus on patient education. Jen has also worked as an adjunct professor for the PA program at Daemen College since 2009 and assumed the role of Assistant Professor at Daemen in the fall of 2018. 


Keri Fitzpatrick, MSN, FNP

Keri received her Bachelors and Masters in nursing from D’Youville College in 2014. She completed her certificate in Family Nurse Practitioner in 2016 from D’Youville College. She has worked at Buffalo Mercy Hospital since 2012. She has certifications in critical care and in emergency neurologic life support. Keri joined Rheumatology Wellness Care in December of 2015. Initially, she worked in the position infusion nurse and then as a provider in 2016. When not working, Keri enjoys exercising and gardening.


Cara Innus, PA-C, MPAS

Cara is a graduate of the Daemen College Physician Assistant program and earned her Masters of Physician Assistant Studies from the University of Nebraska Medical Center. She practiced Family Medicine in Western New York for nearly twenty years prior to joining Rheumatology Wellness Care. She emphasizes preventative medicine and healthy lifestyle choices with all of her patients. Cara is especially interested in how diet, activity, and stress can impact disease progression and treatment. Her love of patient education lead her to a teaching career at Daemen College's PA program. She has been a faculty member since 2004, and is currently an Associate Program Director. In her spare time, Cara enjoys spending time with her family and friends, exercising, and gardening when the Buffalo weather cooperates!


Sarah Latchford, PA-C, MPAS

Sarah received her B.S. degree Cum Laude from D'Youville College. She received her Masters Degree from the Univeristy of Nebraska. Sarah is an Assistant Professor at Daemen College. She is a member of the Western New York Physician Assistant Association and the New York State Society of Physician Assistants. When Sarah is not working, she enjoys spending time with her husband and two sons. 


Annie McGorry, PA-C, MPAS

Annie is a recent graduate of the dual Bachelors/Masters Physician Assistant Program at Daemen College. She graduated from the 5 year program Summa Cum Laude and joined our practice shortly after graduation. Annie is excited to begin her career in a specialty that is patient centered and emphasizes individualized treatment plans, along with patient education. In her spare time, Annie enjoys playing the guitar, hiking, and spending time with her family and friends.


Paula Zagrobelny, MSN, FNP

Paula is a graduate of the University of Rochester School of Nursing and obtained her Masters in Nursing/FNP at Georgetown University in DC. Paula started and continues her career in Family Medicine as well. She enjoys the total approach to wellness and care of the mind and body. She believes health is maintained through a combination of traditional and alternative medicine and that everyone can benefit from a multi-focused approach to health. In her free time, Paula enjoys swimming, coaching, skiing, and taking care of her children.