Our physicians and staff

Highly trained and accomplished physicians are the foundation of quality care.

But don’t overlook the staff’s role in making that care efficient and the experience extraordinary.

The average tenure of the EVCC staff is 10 years. This commitment allows us to build a personal relationship with our families that translates into more effective and more compassionate care.

Learn more about our physicians and staff below:

Dr. Gwynne A. Marstiller

Dr. Gwynne A. Marstiller, M.D., F.A.A.P.

Dr. Marstiller had originally planned on doing OB-GYN, but discovered – in the delivery room – that she was much more attuned to the baby, than she was the mother.

It shouldn’t have come as a surprise; before beginning medical school she had thrived as a camp counselor and a tutor. And when she got to medical school, seeing the patience and humor of other pediatricians inspired her to follow in their footsteps. The rest, well . . . is history.

“The most rewarding aspect of my job is watching children and families grow and mature – it’s wonderful to see the changes over the years. But watching families deal with health issues can be difficult. That’s why we offer personalized, individual care to each of our patients. No one knows a child better than his or her parents, and when we work together, we can serve the child best.”

In addition to keeping children of the East Valley healthy, Dr. Marstiller serves on the board of a local organization that creates scrap and memory books for children who have taken a wish trip or who have life threatening illnesses. She’s also an avid reader, loves traveling and enjoys the theater.

Dr. Marstiller is a licensed pediatrician, a Diplomate of the American Board of Pediatrics, and a Fellow in the American Academy of Pediatrics. She graduated cum laude from Bryn Mawr and University of Pittsburg before attending University of West Virginia School of Medicine. Dr. Marstiller completed her residency, and served as Chief Resident, at Monmouth Medical Center on the Jersey Shore.

Dr. Neil H. Aaron

Dr. Neil H. Aaron, M.D., F.A.A.P.

Growing up, Dr. Aaron lived across the street from his pediatrician. “He was a role model and helped me establish my rapport with children. By the time I was 15 years old, I knew I wanted to be a pediatrician – and it was because of him.”

“ Healthy kids have the time and energy to chase their dreams. Watching kids grow up and develop into their own people and personalities is one of the best parts of the job,” says Dr. Aaron. “I think one of the things that makes me an effective doctor is my emotional attachment to my families. But that also can make the job exhausting.”

According to Dr. Aaron, building trust with children and families is key to providing good care. “It takes time to establish trust, and I respect that. I try to treat all of my patients like family.”

As a parent, Dr. Aaron’s goal was to raise well-rounded kids . . . children who were both physically and academically active. “Mental and physical health are connected, I believe that physically and mentally challenging kids builds resilience.”

Dr. Aaron isn’t the only one who believes in his approach and capabilities – Ranking Arizona and Phoenix Magazine have both repeatedly named Dr. Aaron to their respective Best Doctors and Top Doctors lists. He’s also been identified as one of America’s Top Pediatricians.

Dr. Aaron is a licensed pediatrician, a Diplomate of the American Board of Pediatrics and a Fellow in the American Academy of Pediatrics. He earned his undergraduate and medical degrees the University of Michigan – graduating cum laude in both. Dr. Aaron completed his medical residency at the Children’s Hospital of Philadelphia.

Dr. David M. Curran

Dr. David M. Curran, M.D., F.A.A.P.

Dr. Curran chose to study medicine because he wanted to make a difference. He chose pediatrics because of the innocence children possess. “Kids don’t intentionally hurt themselves, a child breaks his arm because he truly believes he can stick to the wall like Spiderman.”

“Playing an active role in a child’s health is rewarding, “ says Dr. Curran “It’s knowing what will work . . . knowing the family and knowing that continuity of care will lead to asking the right questions and ultimately the best outcomes.” But it’s challenging work too. “The toughest part of my job is delivering bad news. I’m a parent, and I understand what it’s like to see your child in pain.”

In addition to his involvement in numerous professional organizations and boards, Dr. Curran serves as the Chairman of the Department of Pediatric Medicine at Cardon Children’s Medical Center. He is fully-committed to improving the level of medical care available to children and families who live in the East Valley.

Proof of Dr. Curran’s commitment is a list of awards that place him among the best pediatricians in the state – awards that include being listed in the Top Doctors Edition of both Phoenix Magazine and Ranking Arizona, being repeatedly identified as A Best Doctor by The Best Doctors in America, and receiving multiple Patient Choice Awards from Vitals.com.

Dr. Curran is a licensed pediatrician, a Diplomate of the American Board of Pediatrics and a Fellow in the American Academy of Pediatrics. He studied biology and philosophy at Boston College where he graduated magna cum laude, and received his medical degree from Georgetown University School of Medicine. He fulfilled his residency at Phoenix Children’s Hospital.

Natalie K. Johns, MMS, PA-C

Natalie PickNatalie always had an interest in healthcare, as she spent a lot of time in doctors’ offices growing up. She received stitches to her chin at the age of 5 after a nasty spill onto the marble floor, spent multiple holidays in her pediatrician’s office with whatever bug was going around at the time, and at 12 years old she was diagnosed with type 1 diabetes.  After her diagnosis, she spent even more time at doctor’s appointments.  Natalie soon realized that she had firsthand experience which provided her with the empathy which would be a strong asset in making her a good healthcare provider.

Natalie has always had a love for children. While in high school and college, she enjoyed babysitting as well as volunteering for a sports program for special needs children.  She is “Aunt Awesome” to her two beautiful nieces. Her first niece was premature and spent her first two weeks in the NICU. Spending time with her niece in those first weeks in the hospital helped to confirm to Natalie that she needed to be a part of treating children.

It is safe to say that Natalie enjoys the warm weather! She is originally from El Paso, Texas. She attended the University of Southern California for her undergraduate degree in psychology. She graduated from Midwestern University in Glendale, Arizona with her Master’s degree in Physician Assistant Studies.


Emily pic

Emily was in fifth grade when she decided that she was going to become a nurse, and she has never regretted that

decision.  She loves working as a pediatric nurse practitioner, because of the unique relationships that she is able to form with patients and their families.  Watching children grow into happy, healthy young adults is an extremely rewarding experience, and Emily cannot think of anything she would rather do.

Emily is a registered nurse and a certified pediatric nurse practitioner.  She graduated summa cum laude from Covenant College in Lookout MT., GA, and went on to pursue a Master of Science in Nursing from Vanderbilt University in Nashville, TN.  She is a member of Sigma Theta Tau International Honor Society of Nursing and the National Association of Pediatric Nurse Practitioners.

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Office Hours: By Appointment Only. M-F 8:00 a.m. to 5:00 p.m. Evenings & Saturdays on urgent basis only.