Current Fellows

Dr. Diana Feldstein

Diana Feldstein

Dr. Diana Feldstein

Geriatrics Fellow


Dr. Diana Feldstein is originally from Baltimore, Maryland. She attended Washington College on the Eastern Shore of Maryland. She attended medical school at the Warren Alpert School of Medicine at Brown University in Providence, Rhode Island.

As a medical student she worked on a project to better assess needs for caregivers after a family member has passed away. This helped draw her attention to the importance of support for patients and their families throughout chronic illnesses.  This corresponded with her love of care for geriatric patients.

After completing her residency in Internal Medicine at the University of North Carolina, she worked with a practice providing home based primary care for chronically ill, home bound patients. This practice helped her to define what home can mean to an elderly person. She is interested in the transition made by millions of Americans yearly from their individual homes to a hospital, to an assisted living facility or to a nursing home. Her interests are in patient safety, family support and overall cost of these transitions.

Dr. Ben Blomberg

Dr. Ben Blomberg, MD 2016Dr. Ben Blomberg

Geriatrics Fellow


Dr. Ben Blomberg is originally from Wellington, FL. He attended the University of Florida in Gainesville, FL, where he received a Bachelor of Science in Psychology. He stayed on at the University of Florida for medical school. He completed residency training in Internal Medicine here at the University of North Carolina in Chapel Hill. He is thrilled to be continuing his training here in Geriatric Medicine.

 Dr. Blomberg was drawn to Geriatrics because of of his love for longitudinal management of complex medical care. He enjoys helping patients and their families navigate transitions through the medical system along the course of chronic illnesses. He also has a passion for teaching medical students and residents, and plans for a career as an academic clinician-educator. 

Dr. Steven Staub

Steven StaubDr. Steve Staub

Geriatrics Fellow


Dr. Stephen Staub is a Family Physician in the U.S. Navy pursuing a Fellowship Geriatric Medicine at UNC Chapel Hill.   Dr. Staub grew up in Glendale, CA and completed his undergraduate studies at Calpoly San Luis Obispo.  His grandfather’s service in the Navy as a blimp air-crewman in WWII was his inspiration to study medicine The Uniformed Services University of Health Sciences (USUHS) in Bethesda, MD where he graduated in 2004. 

Prior to completing residency in 2009, Dr. Staub served as Battalion Surgeon for 3rd Battalion/1st Marines, an infantry battalion.  He deployed to Iraq in 2005 and 2007, providing care to Marines throughout the Al Anbar province.   After completing training in Family Medicine, Dr. Staub deployed with the 1st Medical Battalion in late 2009 to the Sangin Valley in Afghanistan supporting 3rd Battalion/5th Marines in what many consider the bloodiest battleground in Afghanistan. 

 After a staff tour at the U.S. Naval Hospital in Yokosuka Japan, Dr. Staub became faculty at Camp LeJeune Family Medicine Residency in Jacksonville, NC.   With an interest in caring for older adults, he revived a rotation in Geriatric care for the residency spent three years improving care for those over age 65.   Now striving for additional training in Geriatric Medicine, he plans to return to the Family Medicine residency to prepare the next generation of doctors to care for our aging population. 

In his free time Dr. Staub enjoys activities with his wife Noelle, their children Mallory and Jeremy, and their Chocolate Labrador, Judge.   He is a loyal fan of the Los Angeles Dodgers.

Dr. Rebekah Mulligan

MulliganDr. Rebekah Mulligan

Geriatrics Fellow

Dr. Rebekah Mulligan grew up in Sugar Land, Texas, and attended Texas A&M University for her undergraduate education where she studied Chemistry and Psychology. She attended medical school at Texas A&M Health Science Center where she was awarded Top Internal Medicine Student. She and her husband moved to Memphis, Tennessee for their residency training. She completed her Internal Medicine Residency at the University of Tennessee and was chosen to be a Chief Resident for the program.  

As a medical student, Dr. Mulligan became interested in Internal Medicine when she realized that she liked spending time with patients and helping them determine what medical problems they had and how to treat them. She fell in love with Geriatric Medicine as a third year Internal Medicine resident after realizing how much she enjoyed managing patient’s medications and helping patients transition through life.  She is excited to continue her education with the UNC Geriatric Fellowship.

Her personal goals during fellowship include developing the skills needed to take care of patients in an outpatient setting. She is involved with developing a curriculum for a multi-disciplinary simulation approach to teaching learners. Dr. Mulligan enjoys spending her free time with her husband and children and exploring the Triangle area.