Skip to main content

Japanese
English

Inquiries

Address inquiries to

Address	Higashi-Ochanomizu Building, 2-29, Kanda Awaji-cho, Chiyoda-ku, Tokyo, 101-0063
Inter-office mail	(HQ) Health Insurance (OC2)

* Please note that your call will be recorded, for the purposes of confirming call contents as well as making service improvements.

Subject	Contact
Inquiries concerning health insurance cards and membership details Change of name, address, or account Loss of health insurance card, etc. Retirement Inquiries concerning dependent family members (adding, removing, issuing certificates) Inquiries concerning insurance premiums Inquiries concerning online eligibility verification	Operations (Application) Tel. 03-4554-3020
Inquiries concerning medical care costs or benefits Inquiries concerning the Certificate of Application of Maximum Copayment Amount If you have been charged high copayments If you have taken time off from work due to illness or injury If you have given birth If you have had prosthetic equipment prepared If you have been in a traffic accident Inquiries concerning medical care cost information	Operations (Benefits) Tel. 03-4554-3030
Inquiries concerning health examinations	(Health examinations) dedicated call center Tel. 0120-047-489
Inquiries concerning claims for reimbursements of health checkup costs paid up front by employees * Contact the (health checkup) dedicated call center for family members, Voluntarily and Continuously Insured Persons, and Special-Case Retired Insured Persons.	(Employee reimbursements) dedicated administrative center Tel. 0120-026-086
Inquiries concerning support for efforts to prevent infectious disease	(Infectious disease prevention) dedicated call center Tel. 0120-091-567
Inquiries concerning MY HEALTH WEB	(MHW) dedicated call center Tel. 03-5213-4467
Inquiries concerning contracted sports facilities	Health Management Support Tel. 03-4554-3100
Inquiries concerning contracted lodges Inquiries concerning the Society bulletin Hitachi Kenpo	Planning Tel. 03-4554-3010
Inquiries concerning Hitachi Health Insurance Society authentication IDs Inquiries concerning logging in to menu items requiring authentication (those with lock icons)	Information Systems Tel. 03-4554-3090
Members with hearing or speech impediments, or members who need assistance in English can use the following contact point. We ask others to contact us by telephone. * Authentication is required.