Accepting New Patients
Medical Group Provider

Karen Alfonso, MD

4.7 out of 5 (35 Ratings)
Specialty
  • Pediatrics
    (Board Certified)
Languages
English
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The Golden State Patient Experience Awards is Providence’s California-wide program recognizing providers in Northern and Southern California who consistently deliver outstanding patient experiences, based on patient feedback and experience scores.

Primary Address | Office Details
St. Jude Heritage Chino Hills
15855 Pomona Rincon Road
Chino Hills, CA 91709

Phone: (909) 929-2511

Medical Groups & Affiliations
  • St. Jude Heritage Medical Group
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to Your Provider
(909) 929-2511
Schedule an Appointment
  • Dr. Alfonzo was very helpful!
    I was very unsatisfied with my experience at Providence for my daughter's 6 month check-up. We were at the office for almost 2 hours to complete the visit. The doctor was scheduled to be on call at the hospital while she had patients in the clinic - this was incredibly frustrating especially as a mother of a small baby. My baby became extremely hungry and I was asked not to feed her until she got her shots as she could spit up from them and it took so long that we went into the next nap time so she was crying a lot due to hunger and tiredness in the room while we waited. When the doctor finally came in the room she was clearly rushed and I felt like I wasn't given proper attention for many of my concerns as a first time mother. She was short in her responses and even condescending at times. I almost said something in the moment but was fearful it would impact the way she treated my baby. Furthermore, it took even longer for us to wait on the shots which are already a challenging experience with a baby. My baby received her shots hungry and tired. I am incredibly disappointed in Providence. I have been attending St. Jude's since I was a child myself and never had an experience like this before.
    31-Dec-2025
    We’re sorry to hear that you did not have a positive experience with us. Patient care is our top priority, and we would like to further discuss your experience with us. Please email us at Transparency@stjoe.org with comment ID 214098382 in the subject line.
    Dr. Alfonso was very caring and took her time to help figure out what is going on with [name]. When she did everything she could she referred us to a specialist.
    Provider was respectful of my child's preferences and comfort.
    Dr Alfonso and her staff are great people and are very personable. Always a pleasure when we go visit
    14 Total Comments Page 1 2 3   Next
  • Meet The Provider
    Biography

    Dr. Alfonso is a board-certified pediatrician practicing for over 10 years in Orange and LA county. She received her medical degree at UC Davis School of Medicine and completed her residency training at CHOC Children’s hospital.

    Her favorite thing about being a pediatrician is, of course, the kids! She enjoys the privilege of walking with patients and their families through the stages of life from birth to adolescence, and the bonds formed while working towards the common goal of keeping children healthy. Dr. Alfonso is a strong believer in collaborative and emphatic care. She is a strong advocate for preventative medicine, and this includes vaccines in accordance with the CDC and American Academy of Pediatrics.

    Away from work, Dr. Alfonso enjoys hiking, traveling, reading, eating and spending time with her family.

    Read More
    Primary Specialties
    Primary Specialties
    • Pediatrics
      (Board Certified)
    Other Specialties Associations
    Certifications
    Board Certifications

    American Board of Pediatrics, Pediatrics

    Education
  • Insurance Accepted

    Insurance Accepted

    • Insurance Plan

    • Aetna HMO
    • Aetna PPO
    • Anthem Blue Cross HMO
    • Anthem Blue Cross PPO
    • Blue Shield of CA HMO
    • Blue Shield of CA HMO - Trio
    • Blue Shield of CA PPO
    • Choice/Humana PPO
    • Cigna HMO
    • Cigna PPO
    • Coventry/First Health PPO
    • Health Net HMO
    • Health Net PPO
    • HealthSmart (Interplan) PPO
    • Multiplan PPO
    • TriWest - Tricare
    • United Healthcare HMO
    • United HealthCare PPO
    • US Family Health Plan - TriCare
    • Insurance Plan: HMO PCP ID

      Aetna: 307012
      Antem Blue Cross:0RD480
      Blue Shield: *100190473012
      Cigna:5237748017
      CignaSelect:5237748018
      Health Net:3205193773
      United Healthcare: 3750121

      *Provider ID is the same for both Commercial and Medicare Plans

 
  • Primary Location

St. Jude Heritage Chino Hills