Welcome to Our Practice

Welcome to Children's Healthcare Medical Associates, Your Pediatrician in San Diego, CA

Welcome to Children's Healthcare Medical Associates, where San Diego children come first, and where pediatricians and patients work together to provide exceptional medical care for kids in the area. We pride ourselves on providing compassionate, comprehensive services to children from birth through adolescence, and we're glad you've chosen us as your child's medical home.

Please take a few moments to read through our website to get a better feel for Children's Healthcare Medical Associates capabilities and services. Our website provides you with the important background about our pediatricians, staff, office hours, financing policies, appointment procedures, maps, directions to our office and other useful information.

We know how hectic life can be and are committed to making our practice convenient and accessible for your family. We want you to feel confident that when you choose us as your child's primary physician, you're working with professionals who are qualified, experienced and caring. We do this by equipping you with the support and resources you need to make the most educated decisions about your child's health. Our services include tongue-tie treatment, adolescent and teen eating disorders, circumcisions, teen emotional health, & more!

We want to thank you for choosing us for your child's medical care and welcome you to our practice. We can assure you that you'll feel confident in our ability to meet and exceed all of your expectations. Please call our office if you have any questions.

Meet Our Providers

  • Dr.
    Stephen H. Carson

    Dr. Stephen Carson has been practicing pediatrics for over 37 years and supervises the Asthma Management Program of Children’s Healthcare Medical Associates. 

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  • Dr.
    Nicole M. Hibbs

    From the time she was a child, Dr. Nicole Hibbs aspired to take care of children as a pediatrician. While other medical specialties were tempting as career choices during training, the resilience and sweet smiles of kids always called her back to pediatrics!

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  • Dr.
    Tami M. Nakahara

    “My role as a pediatrician is to listen, learn and teach.” 

    The most rewarding part of Dr. Nakahara’s day is seeing familiar faces, and she finds that good communication and follow-up are the most important aspects of taking care of children. 

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  • Dr.
    Téah Caine
    Family Medicine Physician

    Dr. Téah Caine enjoys working with the family as a whole. She enjoys getting to know the caregivers behind the children and helping them feel confident in taking care of their children at all stages of their development. She is a skilled, full spectrum Family Medicine physician seeing children from birth to adolescence at Children’s Healthcare and then transitions with the young women into adulthood by taking care of them at the neighboring office Physicians Health Institute for Women. She prides herself on delivering comprehensive, culturally sensitive care from cradle to grave focusing on the health of women, adolescents and children in the community. 

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  • Dr.
    Raquel L. Rissman

    Pediatrics is so rewarding because, “I get to see the world through the eyes of children every day, and that world is such an exciting place- so full of possibilities.”  Dr. Rissman has always been drawn to pediatrics because of its wonderful blend of science and education combined with the ability to build long-lasting interpersonal relationships. 

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  • Dr.
    Karen S. Loper

    Dr. Karen Loper has been a pediatrician specializing in Adolescent Medicine for over 20 years. She knew that she wanted to be a pediatrician by the time she was 8 years old. Growing up in a military family who received medical care in settings all over the world, she learned from an early age that caring for children and teens well requires patience, compassion and good communication. Dr. Loper believes that the key to empowering her patients and their families is to listen well and to provide education so that they can make informed decisions for themselves about their health. 

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  • Dr.
    Sarah Giguere

    Dr. Giguere has a genuine passion for providing the highest level of care to children. She holds a strong commitment to nurturing trust and respect with patients from diverse cultures. She finds joy in caring for her patients through all stages of life, from birth to adolescence.  

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  • Dr.
    Michaela Ene

    Dr. Michaela Ene is a Clinical Psychologist with over 20 years of experience working with children of all ages who struggle with stress management, anxiety, depression and a wide variety of emotional and behavioral dysregulation issues.

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  • Jennifer Hillman
    Family Therapist

    Jennifer “Jenna” Hillman is a licensed marriage and family therapist. She is excited to join the clinical team at Children's Healthcare. Her son, Chance, has been a patient there for over 8 years which means she knows the full experience of being a patient at CHMA as well as a staff member. The clinic’s consistent professionalism, knowledge, and care made a significant impact on the life of her family over the years. She is beyond thrilled to now be a part of the team that cares for children and teens at the office.

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  • Aimee Yager
    Nurse Practitioner

    Aimee Yager is a board-certified Pediatric Nurse Practitioner.
    Her focus is on the growth and development of children of all ages.  She loves working with families to promote
    healthy lifestyle choices that helps parents raise happy and healthy

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  • "Dr. Carson is extremely kind and takes his time with each patient. By far the best doctor and I trust him caring for my daughter. Highly recommend him."
    Alex H. 2020
  • "We have been bringing our kids here for 6 years now and have loved it! As a fellow physician , I appreciate what a well-run office it is and how caring the staff and physicians are."
    Samantha H. 2020
  • "We've had such a great experience with Dr. Hibbs. She listens well and takes time to answer questions, brainstorm solutions, etc. She provides her professional opinion in a courteous manner and respects our input as well. Dr Hibbs is great with my kids--she's kind, interactive and approachable and they definitely feel comfortable with her. We've had a wonderful experience with Dr. Hibbs and highly recommend her to others. We've had a positive experience with Children's Medical overall as well--all office staff have been friendly and helpful. Although appointments sometimes run late, we've never had to wait a long time. We're very happy here."
    Shawna M. 2020
  • "Have great triage and night/weekend appointments for urgent issues which can avoid a trip to urgent care. This has been a huge relief to me as a parent. When you are feeling unsure if something is urgent, they are there to support you and you don't have to wait long to get competent advice. The doctors are great for routine things and also helped get to the bottom of a difficult to diagnose issue with one of my kids. I moved and the clinic is a bit far for me but I will keep going there rather than switch to a M-F 8-5."
    Melinda V. 2019
  • "Dr. Tammy Nakahara is an amazing doctor. She has been my children's doctor for over 15 years. She has extreme interest in their health and likes to take the less medicine as possible route, natural, and I appreciate that!"
    Shannon C. 2019

Our Location

Find us on the map

Get to Know Us

Children's Healthcare Medical Associates

550 Washington Street

Suite 300

San Diego, CA 92103

(619) 297-5437

Hours of Operation

Our Regular Schedule


8:30 AM-8:30 PM


8:30 AM-8:30 PM


8:30 AM-8:30 PM


8:30 AM-8:30 PM


8:30 AM-5:00 PM


8:30 AM-2:00 pm