Our Providers & Staff

Meet our friendly, experienced pediatricians, nurse practitioners and staff at Harvest Pediatrics!

Our entire team is dedicated to helping you and your child feel at home from the moment your walk through the door. We're proud to be members of the Napa Valley community and serve the needs of your children.

We pride ourselves in being an exceptional clinic where children come first. Our child-focused practice works hard to meet the needs of children from infancy through adolescence.

Compassionate, knowledgeable and supportive staff is the cornerstone of Harvest Pediatrics' quality care.

All of our pediatricians and nurse practitioners are highly trained professionals, and maintain the highest level of accreditation in pediatrics to address the special needs of infants, children, and teens.

Our pediatricians are all board-certified by the American Board of Pediatrics. The National Certification Board of Pediatric Nurse Practitioners certifies our nurse practitioners.

We strive to treat each and every patient as we would want our own children to be treated. Our doctors, nurse practitioners and staff look forward to building a relationship with you and your family.

  • Joseph Carrillo, MD, FAAP
    Pediatrician

    Dr. Joseph Carrillo joined Harvest Pediatrics in 2004 from Boston, Massachusetts. He completed his medical education and post-graduate training at the University of Arizona, University of Texas Southwestern and Harvard University. He also completed a fellowship in developmental & behavioral pediatrics at Boston Children’s Hospital and he is board certified in Pediatrics.

    Dr. Carrillo held leadership positions at Boston Children’s Hospital, including Executive Medical Director of the Martha Eliot Health Center and Vice President for Community Health. He is a former Assistant Professor of Pediatrics at Harvard Medical School.

    In 2000, he assisted leadership at Boston Children’s Hospital to create and establish the Office of Child Advocacy.  In 2003 & 2012, he was appointed as a member of the American Academy of Pediatrics Bright Futures Initiative, Early Childhood Panel, to review and edit the standards of care for pediatric preventive care.  These guidelines are used as part of the new Affordable Care Act for pediatric health care.

    His interests are children with special health care needs, attention deficit disorder, learning disabilities, autism, and early childhood development. He is bilingual in Spanish and has authored scholarly works in cultural competency in medicine. He has a keen interest in health care equity as it relates to diverse and economically disadvantaged communities and how families access health care.

    Dr. Carrillo is a former member of the Board of Trustees at the Queen of the Valley Medical Center and the Board of Directors of the Napa Valley Community Foundation.

    Castle Connelly, Ltd and US News & World Report recognized Dr. Carrillo as a regional “Top Doctor” in Pediatrics from 2012-2015.

  • Staci Hemmerlin, CPNP
    Pediatric Nurse Practitioner

    Staci joined Harvest Pediatrics in February 2000. She attended graduate school at Loma Linda University in Loma Linda, California. Prior to receiving her Master’s Degree as a pediatric nurse practitioner she received a Bachelor of Science in Nursing at Pacific Union College in Angwin, California. The National Certification Board of Pediatric Nurse Practitioners and Nurses and the Board of Registered Nursing, California certifies Staci.

    Her professional interests include working with children and families with food allergies and celiac disease.

    Staci and her family live in Napa. She, her husband and two boys are avid water skiers and can be found skiing the slopes of Lake Tahoe during the winter. Her boys keep her busy with their basketball and baseball games.

  • Susan Mickens, CPNP
    Pediatric Nurse Practitioner

    Susan joined Harvest Pediatrics in June 2009.  She graduated from Monmouth University in West Long Branch, New Jersey, where she received her Bachelor of Science in Nursing.  She then received her Masters of Science Degree in Nursing from Seton Hall University in South Orange, New Jersey with credentialing as a Pediatric Nurse Practitioner in the primary care of infants, children and adolescents.  The National Certification Board of Pediatric Nurse Practitioners certifies her.

    Susan is a member of the National Association of Pediatric Nurse Practitioners (NAPNAP).  Her professional interests include the prevention of childhood obesity and allergies & asthma in children.  She pursues continuing education in these areas as well as general pediatric topics.

    In her off time Susan enjoys exercising, gardening, tennis, golf, hiking and skiing.  She lives in Napa with her two sons Danny and Ben.

  • Dr. Barbara Gardner, MD
    Pediatrician

    Dr. Gardner is an experienced and well-trained pediatrician.

    She is Board Certified in Pediatrics and is a Fellow in the American Academy of Pediatrics. 

    She obtained her medical degree from New York University in NYC and completed her post-graduate medical training in pediatrics at Yale-New Haven Hospital.  She has extensive pediatric primary care experience in an ambulatory setting.

    She recently worked with Adventist Health to establish a rural health pediatric practice in Lakeport, CA.  In 2018, she received the First 5 of Lake County Children's Champion Award. 

    She is a former Clinical Instructor in Pediatrics at Yale University School of Medicine in New Haven, Connecticut, and Associate Faculty at Charles Schmidt School of Medicine Florida Atlantic University in Boca Raton, Florida. 

    Dr. Gardner has been an associate at a private pediatric practice in Beverly Hills, CA, Boca Raton, FL, and Seymour, CT.

Questions or Comments?

At Harvest Pediatrics, we encourage you to contact us whenever you have a concern or question related to your care.
You can reach us at:


Napa: (707) 252-1076
St. Helena: (707) 963-0171

Our Location

Find us on the map

Hours of Operation

Closed daily between 12:00 PM and 1:30 PM for lunch.

Napa Office

Monday:

8:30 am-6:00 pm

Tuesday:

8:30 am-6:00 pm

Wednesday:

8:30 am-6:00 pm

Thursday:

8:30 am-5:00 pm

Friday:

8:30 am-5:00 pm

Saturday:

8:30 am-12:00 pm

Sunday:

Closed

St. Helena Office

Monday:

8:30 am-5:00 pm

Tuesday:

8:30 am-5:00 pm

Wednesday:

8:30 am-5:00 pm

Thursday:

8:30 am-5:00 pm

Friday:

8:30 am-5:00 pm

Saturday:

Closed

Sunday:

Closed