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From newborns to high schoolers —

Care tailored to every child

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Clinic HoursCLINIC HOURS

Mon Tue Wed Thu Fri
09:00–12:00
(Last reception 11:30)
open
open
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14:00–15:00
checkup/vaccination
checkup/vaccination
checkup/vaccination
checkup/vaccination
checkup/vaccination
15:00–18:00
(Last reception 17:30)
open
open
open
open
open
Sat 1st, 3rd, 5th Sun 2nd, 4th Sun

09:00–13:00
(Last reception 12:30)

open
/
open
: General consultation
: Health checks & vaccinations only
Closed
: 1st, 3rd & 5th Sundays, and public holidays

※ Last reception: weekday mornings 11:30 / afternoons 17:30 / weekends 12:30.

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ServicesMEDICAL

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How to VisitFIRST VISIT

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What to Bring

  • Individual Number Card (health insurance card)

  • Child Medical Certificate (Shōni Iryōshō)

  • Mother & Child Health Handbook (Boshi Techō)

  • Medication record book (Okusuri Techō)

Please bring your insurance card and medical certificate on your first visit.

Without insurance verification, we cannot process your visit as covered care.

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How Your Visit Works

  1. STEP1

    Book an Appointment & Complete the Online Questionnaire

    Please book your appointment first. Once confirmed, you will be asked to fill in a short online medical questionnaire.

  2. STEP2

    Arrive & Check In

    Please arrive at least 5 minutes before your appointment time.

    ※ Please present your Individual Number Card and Child Medical Certificate at reception.

  3. STEP3

    Consultation & Payment

    After seeing the doctor, please proceed to reception for payment and any follow-up appointment if needed.

    Accepted payment methods

    Cash, credit cards, IC cards (Suica etc.), Rakuten Edy, and other cashless payments.

    Accepted cards Accepted IC cards
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From the DirectorGREETING

Dr. Masaaki Mochizuki

Care that stands
beside every child
and family

Director: Masaaki Mochizuki

Hamakkoko Children's Clinic opened in April 2023 and will soon celebrate its third year. I am Masaaki Mochizuki, the clinic director. Through my career at children's specialist hospitals — spanning advanced emergency pediatrics to neonatal medicine — I became convinced that a clinic's most important role is rapid detection of abnormalities and acting as a bridge to specialist care at the right moment.

Thanks to the trust so many families have placed in us, the clinic continues to grow. In 2025 we opened a dedicated waiting room ("Hanare") for non-infectious patients, making visits more comfortable for everyone. Beyond the environment, our core belief is not simply treating today's illness, but walking alongside each child's long-term healthy development.

We offer head-shape consultations (over 300 children seen since February 2025), a psychology clinic opened in summer 2025, and from January 2026 developmental assessments using the revised Kyoto Scale of Psychological Development (ages 18 months to under 5). Our concept — "from newborns to high schoolers" — is realized through this comprehensive, personalized care.

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  • Clinic
  • Medical care
  • Clinic interior
  • Clinic interior
  • Clinic interior
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アクセスACCESS

診療科目
小児科
電話番号
045-915-8055
 住所 
  • 〒224-0003
  • 神奈川県横浜市都筑区中川中央1丁目29-24
    アビテノール3F-A
最寄り駅
センター北駅改札口から徒歩1分
09:00~12:00
(最終受付11:30)
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14:00~15:00
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15:00~18:00
(最終受付17:30)
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第1.3.5日 第2.4日

09:00~13:00
(最終受付12:30)

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:診察
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:健診・予防接種のみ
休診日
:第1.3.5日曜日