Medical corporation Aiyokai Mikawa Hospital

What Medical corporation Aiyokai Mikawa Hospital does

Medical Corporation Aiyokai Mikawa Hospital is a private medical corporation (医療法人社団愛陽会) operating a 194-bed psychiatric, psychosomatic, and internal medicine hospital in Mikawa Town, Yamagata Prefecture, Japan. Founded in February 2005 by Representative Director Nishigori Yasu (錦織靖), the hospital serves the rural Shonai region with a dual-focus approach that integrates psychiatric and internal medicine treatment under one roof, addressing a gap in combined psychiatric-medical care in rural Japan. The facility operates three ward types: 96 psychiatric beds (including dementia treatment and psychiatric sanatorium), 50 medical sanatorium beds, and 48 nursing care beds (the latter converted in March 2024 from medical sanatorium beds to a nursing care medical institution). Diagnostic capabilities include CT scanning and EEG equipment.

The hospital's business model is built on Japan's National Health Insurance (NHI) reimbursement system, generating revenue from inpatient care, outpatient consultations, psychiatric day care (Hinode), psychiatric short-term care, and rehabilitation services. The organization has systematically built a closed-loop care ecosystem through 6 wholly-owned affiliated welfare facilities adjacent to the main hospital: three group home buildings (Heights Hirajima, capacity 30 residents), a Type B employment continuation support facility (Jonbu), a consultation support office, a designated home care support office, a 30-bed paid nursing home (Kodera no Ki), and the nursing care medical institution. This integrated network captures patients across the full care continuum, from acute psychiatric treatment through community-based disability support and long-term elderly care.

The hospital is a certified psychiatric specialist training facility of the Japanese Society of Psychiatry and Neurology and was recognized as a Yamagata Smile Company in 2024 for work-life balance initiatives. With 101-250 employees and a 20-year operating history, the organization is a regionally dominant community healthcare provider whose growth strategy focuses on service line optimization and ecosystem deepening rather than geographic expansion, serving the elderly and psychiatric patient populations of the Shonai region.

Name

Medical corporation Aiyokai Mikawa Hospital

Legal name

、医療法人社団愛陽会

Website

https://aiyoukai-mikawahp.com

Company type

Private

Founded year

2005

Operating status

Operating

Headcount range

101–250 employees

Short description

Medical Corporation Aiyokai Mikawa Hospital is a private Japanese medical corporation operating a 194-bed psychiatric, psychosomatic, and internal medicine hospital in Mikawa Town, Yamagata Prefecture, serving elderly and psychiatric patients in the rural Shonai region through an integrated care ecosystem of 6 affiliated welfare facilities.

Ownership category

akta.pro rank

Product category

Psychiatric and Internal Medicine Hospital Services

NAICS

Psychiatric and Substance Abuse Hospitals (6222), Nursing Care Facilities (Skilled Nursing Facilities) (62311), Offices of Physicians, Mental Health Specialists (621112)

SIC

Services-Hospitals (8060), Services-Nursing & Personal Care Facilities (8050), Services-Specialty Outpatient Facilities, Nec (8093)

akta.pro primary industry

Inpatient Psychiatric Hospitals & Units (HLAFACAB)

akta.pro secondary industries

Outpatient Mental Health & Counseling Clinics (HLAFABAC), Chronic Care & Complex Care Management (HSABAIAD)

Keywords

• Psychiatric hospital services
• Psychosomatic medicine
• Internal medicine care
• Elderly nursing care
• Disability welfare services

Headquarters

HQ city

Yokoyama

HQ country

Japan

HQ region

Asia

Offices2 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Technology or R&D, Marketing or Sales

Revenue model

1. Medical Services Revenue: The hospital generates revenue through the provision of inpatient psychiatric and internal medicine care, outpatient consultations, day care programs, and rehabilitation services, billed under Japan's national health insurance (NHI) system. Revenue is primarily sourced from health insurance claims for medical treatment, examinations, hospitalization, and nursing care services.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Medical corporation Aiyokai Mikawa Hospital is a 194-bed regional hospital in Mikawa Town, Yamagata Prefecture, Japan, providing integrated psychiatric, psychosomatic, and internal medicine services. The hospital operates three specialty wards (48 dementia treatment beds, 48 psychiatric sanatorium beds, 50 medical sanatorium beds, plus 48 nursing care medical institution beds) and runs psychiatric day care, short-term care, and a network of affiliated welfare facilities including group homes, employment support, consultation support, a paid nursing home, and home care support services.

Product overview

Medical corporation Aiyokai Mikawa Hospital operates as an integrated healthcare and welfare provider centered on Mikawa Hospital, which offers psychiatric, psychosomatic medicine, and internal medicine services. The hospital manages 96 psychiatric beds (including dementia treatment and psychiatric sanatorium) and 50 medical sanatorium beds, alongside a recently established 48-bed medical care facility for nursing care. The facility ecosystem includes psychiatric day care (ひので) and short-term care programs, group homes (ハイツ平島 A/B/C buildings), vocational rehabilitation (じょんぶ), consultation support services, home care support offices, a paid nursing home (こでらの樹), and the nursing care medical institution. This structure enables the organization to provide comprehensive, continuous medical and welfare support from acute treatment through long-term care and daily living assistance.

Differentiator

Problem solved

Functional benefit

Products and services

• Mikawa Hospital (三川病院) The main hospital of Medical Corporation Aiyokai, providing psychiatric, psychosomatic medicine, and internal medicine services. Operates with functional wards including dementia treatment (48 beds), psychiatric sanatorium (48 beds), medical sanatorium (50 beds), and a nursing care medical institution (48 beds), along with day care and short-term care programs. Serves local residents in the Shonai region of Yamagata Prefecture.
• Psychiatric Day Care Hinode (精神科デイケア ひので) Psychiatric day care program incorporating occupational therapy using crafts and daily items, with completed works sold at local direct-sales stores. Regular cooking classes using health ingredients and seasonal event activities are also provided. Targets psychiatric patients in the Shonai region.
• Psychiatric Short-Term Care (精神科ショートケア) Psychiatric short-term care program allowing participation from half-day units, providing a bright and comfortable space for psychiatric patients. Offers an alternative to full-day programs for those with shorter care needs.
• Group Home Heights Hirajima (ハイツ平島) Designated daily life assistance office (group home) with three buildings (A, B, C) offering capacity for 30 residents. Provides support for independent living based on individual support plans, with adjacent hospital for medical support. For persons with disabilities.
• Employment Support Facility Jonbu (じょんぶ) Type B employment continuation support facility providing work opportunities and skill development support for persons with disabilities. Also operated as a multi-functional facility offering employment transition support and Type B services.
• Aiyoukai Consultation Support Office (愛陽会相談支援事業所) Provides basic consultation support and plan-based consultation support services, assisting persons with disabilities with welfare service utilization, employment support, and daily living independence.
• Aiyoukai Designated Home Care Support Office (愛陽会指定居宅介護支援事業所) Home care support office that creates care plans required for receiving long-term care insurance services and provides consultation and adjustment support for care-related concerns.
• Paid Nursing Home Kodera no Ki (こでらの樹)

Quantifiable outcome

• 194 total patient beds across three ward types providing integrated care capacity
• +4 more outcomes

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Six partnerships are on record, tiered minor, core and secondary.

• アークベルグループチャリティ基金 (Ark Bell Group Charity Fund)minorGTM or Marketing Partner · 11 December 2025The Ark Bell Group Charity Fund donated wheelchairs to Mikawa Hospital in December 2025. This charitable donation supports the hospital's patient care capabilities and demonstrates community partnership.
• Yamagata Prefecture Government (山形県)coreOthers · 26 January 2024Mikawa Hospital is recognized and certified by the Yamagata Prefecture Government as a 'Yamagata Smile Company' for outstanding work-life balance and women's participation initiatives. This recognition demonstrates the hospital's active engagement with local government programs and compliance with regional employment standards.
• Japanese Society of Psychiatry and Neurology (日本精神神経学会)coreOthersMikawa Hospital is a certified training facility of the Japanese Society of Psychiatry and Neurology's Psychiatric Specialist Training System (日本精神神経学会精神科専門医制度研修施設), enabling the hospital to provide specialized psychiatric training and maintaining high professional standards.
• 山形県精神保健福祉協会 (Yamagata Prefecture Mental Health Welfare Association)secondaryOthersThe hospital participates in annual case study presentations organized by the Yamagata Prefecture Mental Health Welfare Association. In July 2025, hospital staff presented research that received positive feedback from the audience, demonstrating professional collaboration with regional mental health organizations.
• 三川町シルバー人材センター (Mikawa Town Silver Human Resources Center)minorGTM or Marketing PartnerThe Silver Human Resources Center of Mikawa Town assists the hospital with planting flowers in hospital gardens annually, contributing to a therapeutic and welcoming environment for patients and staff. This partnership demonstrates ongoing community engagement.
• 鶴岡東高等学校 (Tsurouka East High School)minorOthersTsurouka East High School students have participated in nursing experience programs and practice sessions at the hospital, with calligraphy works donated by the school's calligraphy club to the hospital. This educational partnership supports healthcare workforce development.

Scale indicators4 records

Recent moves19 records

Expansion highlights5 records

Broad incumbents

• Tokyo Metropolitan Matsuzawa Hospital (東京都立松沢病院): A major metropolitan psychiatric hospital providing comprehensive psychiatric, dementia, and addiction services. Larger scale and public-sector owned, but directly comparable in psychiatric specialty focus and integrated care model.
• National Hospital Organization (NHO) hospitals (独立行政法人国立病院機構): A national network of public hospitals including several dedicated psychiatric and neurology hospitals. Comparable as psychiatric specialty providers operating under Japanese national insurance, though at significantly larger scale and publicly owned.
• National Center of Neurology and Psychiatry (国立精神・神経医療研究センター): Japan's national specialty hospital for psychiatric and neurological disorders, providing advanced psychiatric inpatient and outpatient care, research, and training. Comparable as a psychiatric specialty provider with research and training functions.
• Yamagata Prefectural Central Hospital (山形県立中央病院): The flagship prefectural general hospital in Yamagata Prefecture, providing broad acute care including limited psychiatric services. Comparable as a regional referral hospital serving the same prefecture and overlapping patient catchment.

Direct peers

• Inokashira Hospital (井之頭病院): A long-established psychiatric specialty hospital in Tokyo operated as a medical corporation, providing inpatient psychiatric care and community-based services. Comparable as a Japanese psychiatric specialist of similar operational philosophy and scale.
• Jikei Hospital (慈圭病院): A psychiatric specialty hospital in Okayama operated by the Zenkoku Ryouritsu Kyokai, providing inpatient psychiatric care and community reintegration services. Comparable as a Japanese psychiatric specialist with social rehabilitation focus.
• Shonai Amarinai Hospital (庄内余目病院): A regional general hospital located in the Shonai area near Mikawa, operating both medical and psychiatric wards and serving the same catchment population. Directly comparable in scale, geography, and mixed acute/chronic care model.
• Yamagata Prefectural Mental Health Center (山形県立こころの医療センター): A public psychiatric hospital in the same Yamagata Prefecture providing inpatient psychiatric and dementia care. Comparable as a regional psychiatric specialty provider serving the same prefecture's behavioral health needs.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Instagraminstagram.com/mikawahp

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries7 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Medical corporation Aiyokai Mikawa Hospital