Hospital Profile


Name Japan Organization of Occupational Health and Safety(JOHAS),
Yokohama Rosai Hospital
Address 3211 Kozukue-Chō, Kōhoku-Ku, Yokohama City, Kanagawa Prefecture, Japan
Postal Code: 222-0036
Tel: 045-474-8111 Fax: 045-474-8323
Founder Toru Aruga, Director, Japan Organization of Occupational Health and Safety(JOHAS)
Hospital Director Yoji Mikami
Establishment Jun-91
Number of beds 650
Medical departments

Internal medicine departments: Department of Hematology/Department of Nephrology/Department of Oncology/Department of Rheumatology/Department of Psychiatry/Department of Psychosomatic Medicine/Department of Neurology/Department of Respiratory Medicine/Department of Gastroenterology/Department of Cardiovascular Medicine/Department of Pediatrics/Department of Neonatology. Surgical departments: Department of Orthopedic Surgery/Department of Plastic Surgery/Department of Neurosurgery/Department of Respiratory Surgery/Department of Cardiovascular Surgery/Department of Dermatology/Department of Urology/Department of Obstetrics and Gynecology/Department of Ophthalmology/Department of Otolaryngology/Department of Rehabilitation Medicine/Department of Radiotherapy/Department of Radiology/Department of Anesthesiology/Clinical Laboratory Department/Department of Pathology/Emergency Department/Department of Dentistry/Department of Dentistry and Oral Surgery

Facility size Site area: 65,501㎡
Sick wards: first basement level, 10th floor aboveground, 2nd floor tower
Central clinical building: first basement level, 4th floor (aboveground), tower
Administration building: first basement level, 5th floor (aboveground), tower


  • Provides high-level medical care for workers' accidents, workers' medical care, and community healthcare
  • Implementation of specialized medical services for brain disorders and circulatory conditions
  • Implementation of emergency medical treatment 24 hours a day, 365 days a year.
  • Implementation of comprehensive mental healthcare
  • Implementation of high-level and specialized medical rehabilitation
  • Implementation of clinical training for newly graduated doctors
  • Assistance with the training and education of industrial physicians, lifelong education for local medical associations

Salutation from the Hospital Director

病院長 三上容司

Hospital Director

Yoji Mikami

Yokohama Rosai Hospital was established in 1991 as the core hospital for medical institutions in the northeastern area of Yokohama City. The hospital is one of the largest in the city and is recognized for its excellence in medical care. The Japan Organization of Occupational Health and Safety, operating 34 Rosai Hospitals, nationwide, is our parent organization. As a leading hospital in our group, we strive to deliver health care that is patient-oriented, enhancing patient confidence and satisfaction. Our hospital is designated as the Regional Cooperating Hospital for Cancer Treatment by the Ministry of Health, Labour and Welfare, is an accredited hospital of the Japan Council for Quality Health Care, and enjoys many other designations and accreditations by various institutions.
Our mission is to “provide medical care for workers,” “implement high-level medical care,” “advance emergency medical care,” “support regional medical services,” “establish safe patient care” and “train competent medical professionals.” The entire hospital staff will work together to further achieve our vision of providing patients a “friendly and positive environment” at our hospital.
We are confident the Yokohama Rosai Hospital can offer satisfaction in medical care to patients with our 365-day, 24-hour emergency medical services, the latest facilities with highly advanced medical equipment leveraging our cutting-edge medical technology, and our team-based, coordinated medical care.

Major Designations and Approval

  • Designation as a medical institution subject to Japan's health insurance laws: Health Insurance Act, National Health Insurance Act, Public Assistance Act, laws relating to the prevention of infectious diseases, Physically Disabled Persons Welfare Act
  • Designation as a medical institution associated with Yokohama City, Kanagawa Prefecture: Medical aid for pediatric diseases of specified categories, Hepatitis B mother-to-child viral transmission, designated institution for medical and infant care services, uterus and breast cancer screening, specified precision health screening
  • Designation as an institution for clinical training: Clinical training hospital, hospital for the advanced clinical training of foreign medical practitioners, dental clinical training hospital, cooperative clinical training hospital (Yokohama City University, Tokyo University,Chiba University)
  • Training facility for various academic society physicians and certified physicians

Medical Departments

Specialty Departments
  • Internal medicine departments
  • Department of Respiratory Surgery
  • Department of Dermatology
  • Department of Endocrinology and Metabolism
  • Department of Gastroenterology
  • Department of Urology
  • Department of Hematology
  • Department of Cardiovascular Medicine
  • Department of Obstetrics and Gynecology
  • Department of Nephrology
  • Department of Pediatrics
  • Department of Ophthalmology
  • Rheumatology
  • Surgical departments
  • Department of Otolaryngology
  • Department of Oncology
  • Department of Orthopedic Surgery
  • Department of Rehabilitation Medicine
  • Department of Psychosomatic Medicine
  • Department of Plastic Surgery
  • Department of Radiology
  • Department of Neurology
  • Department of Neurosurgery
  • Department of Dentistry and Oral Surgery
  • Department of Respiratory Medicine
  • Department of Cardiovascular Surgery
Disease-Specific Centers
  • Workers' Mental Health Center
  • Diabetes Center
  • Perinatal Center
  • Digestive Disease Center
  • Respiratory Center
  • Center for Spinal Disorders
  • Emergency Medical Center
  • Cardiovascular Center
  • Center for Asbestos-Related Diseases
  • Stroke Center
    • Nursing Department
    • Physical Checkup Department (complete physical examination)
    • Central Surgical Department
    • Central Radiology Department
    • Workers' Preventive Healthcare Department
    • Pharmaceutical Department
    • Department of Anesthesiology
    • Clinical Laboratory Department
    • Clinical Trial Management Office
    • Central Intensive Care Department
    • Department of Pathology
    • Nutritional Management Office
    • Blood Transfusion Department
    • Clinical Engineering Department
    • Health Information Management Office
    • Center for Medical Education and Professional Development

Outpatient Consultation

Names of Medical Departments
1st Floor (A1): Department of Hematology/ Department of Oncology/ Department of Nephrology/ Department of Rheumatology/ General Medicine Outpatient Department
1st Floor (A2): Department of Endocrinology and Metabolism/ Department of Respiratory Medicine/ Department of Respiratory Surgery
1st Floor (A7): Department of Orthopedic Surgery/ Department of Plastic Surgery/ Department of Rehabilitation Medicine/Digestive Disease Center (Department of Gastroenterology, Department of Digestive Surgery, Outpatient Clinic for Mammary Gland Disease
1st Floor: Emergency Medical Center
2nd Floor (A3): Department of Pediatrics/ Department of Otolaryngology/ Department of Ophthalmology
2nd Floor (A4): Department of Dentistry and Oral Surgery/ Department of Urology
2nd Floor (A5): Department of Dermatology/ Department of Obstetrics and Gynecology
3rd Floor (A6): Department of Neurology/ Department of Neurosurgery/ Department of Cardiovascular Surgery/ Department of Cardiovascular Medicine
9th Floor Sick Ward: Department of Psychosomatic Medicine

Closed days

Saturdays, Sundays, holidays, New Year holidays (Dec.29–Jan.3)
Medical Expense for Selection of Initial Consultation
In order to allocate functions of hospitals and medical clinics promoted by the nation, patients who visit this hospital for their first consultation who do not possess a referral from another insurance-participating medical facility (primary care doctor) etc. are required to pay a separate fee of 7,700 yen (tax included) (as a medical expense for selection of initial consultation facility) in addition to the initial consultation fee.
Even if you regularly visited this hospital in the past and your injuries or disease healed (or resolved) since then, or more than one month has passed since you stopped visiting this hospital on your own discretion, your visit to this hospital again will be considered your first medical visit. In this event, please bring a referral from another insurance-participating medical facility (primary care doctor) etc. This does not apply in the case of an emergency or if there are circumstances beyond your control.
* If a patient is consulting this hospital for the first time, please bring a referral from another medical facility (primary care doctor).

Access Guide

Access Map

Google Map

Basic Information

3211 Kozukue-Chō, Kōhoku-Ku, Yokohama City, Kanagawa Prefecture, Japan Postal Code: 222-0036 Tel: 045-474-8111 (main) Fax: 045-474-8323

Access Guide
  • 10 minute walk from Shin-Yokohama Station on the JR Tokaido Shinkansen or Yokohama Line
  • 7 minute walk from Shin-Yokohama Station on the city subway
  • 5 minute drive from Third Keihin Road Kohoku Interchange
  • From Shin-Yokohama Station No. 5 bus station, take the city bus going to Nakamachidai-Eki, and get off at Yokohama Rosai Byoin
Parking Information
  • The following fees apply to general hospital visitors and those who are visiting patients: 30 minutes ••• Free
    Up to 2 hours ••• 500 yen
    Up to two and a half hours ••• 800 yen
    300 yen will be added every 30 minutes thereafter.
  • As outpatients and emergency patients will receive a discount, please make sure to present your parking stub at the cashier's counter when paying your hospital bill. Up to 12 hours ••• 300 yen
  • If you are escorting a patient according to instructions given by the hospital, have your parking stub certified by the sick ward, then present it at the cashier's counter when paying your hospital bill.
    Up to 24 hours ••• 600 yen
  • Large bills such as 5,000 and 10,000 yen bills among others can be used for parking fee payment machines found in the entrance hall of the hospital building and for tollbooth fee payment machines.

How to contact our hospital

To contact Yokohama Rosai Hospital, please refer to the following information.
3211 Kozukue-Chō, Kōhoku-Ku, Yokohama City, Kanagawa Prefecture, Japan
Postal Code: 222-0036
Tel: 045-474-8111 (main) Fax: 045-474-8323
Note: We do not provide e-mail consultation relating to medical treatment. If you are a patient being treated at this hospital and require consultation relating to medical treatment, please contact us by telephone.

Contact for Emergency Consultation

This hospital answers calls for emergency medical care 24 hours a day, 364 days a year. If you require emergency treatment, please contact the following main number.
* We do not provide telephone consultation relating to symptoms.

045-474-8111 (main)

Appointment and referral system

This hospital has instituted an appointment system to reduce waiting time. Please make an appointment before visiting our hospital.

Appointment desk hours

Weekdays: 8:15–17:00


Closed days

Saturdays, Sundays, holidays, New Years holidays (Dec.29–Jan.3)