About Us

Naomi Sullivan, MD

Dr. Sullivan is certified in rheumatology through the American Board of Internal Medicine. She attended Princeton University on an Army ROTC scholarship and Mount Sinai School of Medicine through the Humanities and Medicine program. She completed her residency at Madigan Army Medical Center and her fellowship at Walter Reed Army Medical Center. Dr. Sullivan is a member of the American College of Rheumatology, a member of American Women in Rheumatology and a fellow in the American College of Physicians. She regularly participates in NW Rheumatology meetings and education programs.

Dr. Sullivan, mother of two college students and one high school student, leads an active lifestyle. She enjoys spending her free time with her family to include her husband Stephen and labradoodle, Winnie, and can often be found hiking on the North Chuckanut or Lake Padden trails. A lifelong runner, Dr. Sullivan enjoys participating in races with worthy causes such as The Pancreatic Cancer Purple Stride and The Arthritis Foundation’s Jingle Bell Run. Most recently, she competed with her two eldest children in the Holy Half Marathon at Notre Dame which benefited Girls on the Run.

Dr. Sullivan loves being the physician-owner of a small, independent rheumatology practice and works hard to create a welcoming, caring and professional culture. More importantly, she loves the field of rheumatology and she appreciates the opportunity to listen to, learn from and help patients so that they can lead healthy, active and productive lives.

Hilary Cohen, DNP, ARNP, FNP-C

Hilary Cohen, DNP, ARNP, FNP-C completed her training at the University of Washington – initially Bachelor of Science degrees, Magna Cum Laude, in nursing, public health, and psychology. She then graduated from the University of Washington’s Doctor of Nursing of Practice (DNP) Program as a family nurse practitioner. While completing her nurse practitioner program she worked as a hospice and palliative care registered nurse.

Hilary spent the first four years of her nurse practitioner career working in community health clinics – both as a primary care provider and reproductive health specialist. She then completed her American College of Rheumatology Advanced Certification, as well as a several month rheumatology apprenticeship. She has been working at Bellingham Arthritis and Rheumatology Center since April 2024.

As a DNP, Hilary has full practice authority to evaluate and diagnose patients, order and interpret tests and imaging, and initiate and manage treatments. She appreciates that rheumatology is a challenging, complex specialty that allows her to care for patients and families over many years. She finds this work to be very rewarding!

Outside of work, Hilary enjoys spending time with her husband Cullen, her young children Daphne (3 years) and Oliver (1 year) and their three senior rescue dogs – Kliff, Alfalfa, and Gunni.

Annabel Wallace, ARNP, FNP-C

Originally from Maryland, Annabel received her Bachelor’s and Master’s degrees from Johns Hopkins University and Georgetown University, respectively.

She spent six years working as a nurse in a large primary care practice before pursuing a career in advanced practice nursing. Her work in chronic disease management inspired her to explore the field of rheumatology. She spent two years at a rheumatology practice in Maryland before relocating to Washington with her husband and two young daughters. She has completed the American College of Rheumatology Certification course.

She is excited to bring her experience to BARC and collaborate with Dr. Sullivan and Hilary to deliver excellent care to our patients.

Annabel enjoys spending time outdoors, especially gardening, hiking, and skiing and is looking forward to introducing her daughters to the beautiful Pacific Northwest.