Construction work on I-25 on exit 197 Arapahoe Rd may cause delays. Take measures to get to your appointment on time. We apologize for the inconvenience!

Dr. Melamed head shot small

Isaac Melamed, MD

A respected leader in immunology and immune-related disease, Dr. Isaac Melamed has focused on clinical practice and research for over 25 years. Dr. Melamed has published more than 100 papers and presented and lectured in national and international settings. His major concentration is primary and secondary immune deficiency, immune-related disease and the crosstalk between the immune system and the central nervous system. His mission is early intervention to ensure his patients optimal health.

Click HERE to view Dr. Melamed’s CV

Kevin O’Brien, MD

Dr. O’Brien is a board-certified allergist with 25 years experience in the management of allergies, asthma, eczema, food allergies, sinusitis, and immune deficiencies. In the past he was medical director for the largest health education company in the United States and developed asthma programs for Kaiser Permanente, Anthem, Humana, and Prudential (the latter was the largest physician and patient education program ever developed in America). He also started the first patient education TV network in the United States (now in 27 cities). He sees both children and adults.

Angela McDonald, PA

Angela has practiced as a Physician Assistant since 2004 with IMMUNOe. She has worked in the clinic’s specialties of Allergy, Asthma, Immunology and Primary Care. She has several years working in clinical research and has served as a sub investigator in numerous clinical trials.


Edan Sarid, MD

Dr. Sarid is a dedicated physician specializing in the practice of adult and pediatric allergy, asthma and immunology. His particular interest is in managing complex immunologic and allergic diseases through the identification and modification of defects in the immune system that cause inflammation. Dr. Sarid began his career in New York as a pediatric hospitalist and urgent care physician and then pursued his life-long interest in allergy, asthma and immunology by completing a subspecialty fellowship at the State University of New York Downstate Medical Center in Brooklyn. There he completed multiple research projects on the long term effects of chronic treatments in immune diseases. After moving to Colorado and joining IMMUNOe Health Centers, Dr. Sarid is utilizing his background in pediatrics and global medicine to provide devoted and passionate care for his patients and for cutting-edge clinical research. Outside of medicine, Dr. Sarid finds leisure in composing and performing his music on the piano as well as discovering Colorado’s beautiful outdoors with his family.

Jessica Gustafson, MS, PA-C, AE-C

Jessica received her undergraduate degree in Microbiology from the University of Iowa in 1998. After doing some medical research at National Jewish Health Center, she attented the Child Health Assiciate/Physician Program and UCHSC. She completed this program in 2006, and obtained her Master of Science degree in 2008.

Since then she’s spent 10 years working in the community as a Physician Assistan in Pediatric & Adult Allergy and Asthma. She joing the team at IMMUNOe Health Centers and Horizon Pediatrics & Primary Care in April, 2013, the same year she became a certified asthma educator. This certification ensures that the education given to our asthmatic families is the most up-to-date information available.

She currently works ar our new Smoky Hill Allergy & Asthma clinic. In Jessica’s spare time, she enjoys spending time with her family, enjoying the Colorado outdoors, and traveling.


Jill Schofield, MD

Dr. Schofield grew up in Fort Collins and graduated from the University of Colorado School of Medicine in 1995.  She completed her medical residency on the Osler Medical Service at the Johns Hopkins Hospital.  She then returned to Colorado where she worked as an attending hospitalist at St. Joseph Hospital for many years caring for hospitalized patients and teaching medical students and residents.

Several years ago, she developed an interest in autoimmune disease and in 2014 she published the association of autonomic disorders in the antiphospholipid syndrome (APS) with Dr. Graham Hughes (who first described APS) in London.  She wanted to gain more training in dysautonomia and APS, but currently there is no training program for either.  Some of the world leaders in the field of autoimmune disease had put forth the concept of fellowship training in multi-disciplinary autoimmune disease.  This is not currently an accredited fellowship, but Dr. Schofield created an autoimmune disease curriculum at the University of Colorado, which she completed from January 2015 to July 2016.  She primarily worked with rheumatology, hematology (thrombosis) and autoimmune neurology, but she also worked with a number of other subspecialists treating different autoimmune diseases, including Dr. Brent Goodman, an autonomic neurologist at the Mayo Clinic who shares her interest in autoimmune dysautonomia. During her fellowship, she wrote several papers, which she presented at several different international conferences.  Her practice and research is now focused on APS and dysautonomia, including the emerging area of autoimmune dysautonomia. Outside of the office, her two teenage sons keep her busy.

Eliana Rai

Eliana Rai, MS, FNP-BC

Eliana Rai, a native of Brazil, is a dedicated Family Nurse Practitioner.

Eliana’s passion for patient care began at an early age inspired by her grandmother who was a midwife. Eliana graduated as a nurse and worked for 10 years in her native country of Brazil. She moved to the USA in 2000, after marrying her husband Kamal. After immigrating, Eliana deeply missed her profession and could not wait to get back to doing what she loves. For that reason, Eliana went back to school to earn a Bachelor of Science in Nursing degree from the University of Nebraska in 2008, and a Master in Science, Family Nurse Practitioner degree from Regis University in 2015.

Eliana loves Colorado, its colors, and its people. She is fluent in Portuguese and Spanish and she teaches both languages to her children Madhu and Gabe. Eliana joined Immunoe Health Centers in 2015 and enjoys taking care of families, getting to know them as people, and not just as patients.


dr-murray-3Ronald Murray, MD

Dr. Murray is a Neurologist specializing exclusively in multiple sclerosis. He received his medical degree from the University of Colorado, and was an Intern and Neurology resident at the University of Utah School of Medicine. Prior to joining the faculty at the University of Colorado School of Medicine he completed a fellowship in neurovirology and experimental pathology at the University of Utah and Veterans Administration Medical Center. Dr. Murray has been involved in the field of MS as a researcher, educator, and clinician for nearly 30 years. Dr. Murray has published articles in the fields of neurology and MS and conducted numerous clinical and basic science research projects in MS.  Current research is focused on remyelination, new MS therapies and neuroprotection. Prior to starting the Multiple Sclerosis Clinic of Colorado in 2003 he was the President and Medical Director of the Rocky Mountain MS Center (RMMSC). In addition, from  2009  to 2015 he directed an outreach MS clinic in Billings, MT.Dr. Murray is a well-known neurologist in the Western United States for his work in Multiple Sclerosis (MS). He has serves as a Principal Investigator for many of our MS and Alzheimer’s Disease clinical trial studies.

Thomas Stewart, PA-C, JD

Mr. Stewart has been conducting clinical research for the past ten years at both IMMUNOe and the University of Colorado. He is a certified examiner for both MS and Alzheimer’s Disease assessments. In addition to research, he practices at a community clinic, is the Director of Programs and Services for the Rocky Mountain MS Center, disability services advisor, and co-founder of the MS Complimentary and Alternative Medicine Project.


Hepworth Square

Edward J. Hepworth, MD

Dr. Hepworth is a Denver Native and a nationally-recognized contributor to the science and clinical practice of endoscopic sinus and skull base surgery.  He believes strongly in a patient-centered approach to sinus care and in the concepts of integrative and team-oriented medicine. Dr. Hepworth strives to engage each patient in a clear understanding of their disease with teaching and open communication.  He is currently working on the development of groundbreaking medical devices to promote minimally invasive treatments in the areas of sinus disease and skull base disorders. Dr. Hepworth’s innovative surgical and non-surgical approach to treatments has earned him global recognition with the world’s eminent leaders in the field.

Curriculum Vitae

FullSizeRenderAlison Love, NP

Alison Love is a board certified family nurse practitioner who loves patient care and education. She began her career as a surgical nurse and is a surgical first assistant.  The most rewarding part of her career is helping patients recover from surgery, overcome acute and chronic illness, and seeing their quality of life improve.  When she is not working with patients, Alison enjoys being outdoors and embracing Colorado’s beautiful scenery.