Oouchi Hospital

What Oouchi Hospital does

Oouchi Hospital (大内病院) is a 228-bed psychiatric hospital located in Adachi-ku, Tokyo, operated since 1958 by Medical Corporation DAIWAKAI (医療法人社団大和会) within the Heisei Medical Welfare Group (平成医療福祉グループ), which runs more than 100 hospitals, care facilities, and welfare facilities across Japan. The hospital delivers the full spectrum of mental health services: a 48-bed acute psychiatric emergency ward, 60-bed psychiatric regional integrated care ward, and 60-bed psychiatric sanatorium ward, supplemented by a Tokyo-designated Dementia Disease Medical Center, an outpatient psychiatry practice covering child, adult, geriatric, and psychosomatic medicine, and a 24-hour consultation line. Clinical programs include evidence-based pharmacotherapy, pharmacist-led polypharmacy reduction (model sites cut average medications from 8.1 to 4.1 per patient), individualized multidisciplinary recovery (IMR) and recovery planning, and a swallow-pyramid nutrition service.

Beyond inpatient and outpatient care, Oouchi Hospital operates an integrated community mental-care ecosystem through a regional mental health center, ACT (assertive community treatment) teams, psychiatric home nursing, home rehabilitation, an elderly group home (Komorebi), psychiatric day care, a severe dementia day care program (Hanamizuki), the OUCHI community-support platform and cafe, and a designated consultation support office. It is also a hub hospital for Adachi, Arakawa, and Katsushika wards.

The 2024 hospital renewal introduced private single-room design, digital radiography systems (32-slice CT, 1.5T MRI with PACS), a LINE-based first-visit booking system, telephone and online consultations with credit-card payment, and the O-HAG (Oouchi Hospital Artists' Guild) one-year artist-in-residence program. Revenue derives from inpatient and outpatient fees reimbursed primarily through Japan's national health insurance and social insurance systems, plus out-of-pocket co-payments; the entity is a private non-profit medical corporation and does not publicly disclose financials.

Name

Oouchi Hospital

Website

https://oouchihp.net

Company type

Private

Founded year

1958

Operating status

Operating

Short description

Oouchi Hospital is a 228-bed psychiatric hospital in Adachi-ku, Tokyo, operated by Medical Corporation DAIWAKAI under the Heisei Medical Welfare Group, providing acute, integrated, and long-term inpatient mental health care plus extensive community-based psychiatric, dementia, and rehabilitation services.

Ownership category

akta.pro rank

Product category

Psychiatric Hospital Services

NAICS

Psychiatric and Substance Abuse Hospitals (62221), Offices of Physicians, Mental Health Specialists (621112), Nursing Care Facilities (Skilled Nursing Facilities) (62311), Offices of Mental Health Practitioners (except Physicians) (621330)

SIC

Services-Hospitals (8060), Services-Social Services (8300)

akta.pro primary industry

Inpatient Psychiatric Hospitals & Units (HLAFACAB)

akta.pro secondary industries

Crisis Stabilization Units & Psychiatric Emergency Services (HLAFACAH), Outpatient Mental Health & Counseling Clinics (HLAFABAC), Behavioral Health–Integrated Dementia Care Communities (Neuropsychiatric/BPSD Programs) (HLADACAE), Adult Day Memory Care Programs (Dementia Day Care/Day Health) (HLADACAH), Behavioral Health & Cognitive Support Coordination (Dementia, Depression, SUD) (HSABAIAF)

Keywords

• Psychiatric hospital services
• Mental health care
• Inpatient psychiatric care
• Community mental health
• Dementia medical services

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Infrastructure, Supply Chain

Distribution channels1 record

Marketing channels6 records

Core offering

Oouchi Hospital is a 228-bed psychiatric hospital in Adachi-ku, Tokyo, providing a comprehensive mental healthcare ecosystem that combines inpatient psychiatric treatment, outpatient psychiatric clinics, and community-based mental health services. The facility offers acute psychiatric emergency care (48 beds), psychiatric regional integrated care (60 beds), psychiatric sanatorium care (60 beds), dementia-specialized services as a Tokyo-designated Dementia Disease Medical Center, and community services including ACT teams, psychiatric home nursing, home rehabilitation, day care, elderly group homes, and consultation support.

Product overview

Oouchi Hospital is a 228-bed psychiatric hospital operated by Medical Corporation DAIWAKAI in Adachi-ku, Tokyo, offering a comprehensive mental healthcare ecosystem combining inpatient psychiatric treatment, outpatient clinics, and extensive community-based care. The hospital operates under a hub-and-spoke model anchored by the main hospital (housing acute psychiatric, psychiatric regional integrated care, and psychiatric sanatorium wards), supplemented by the Tokyo-designated Dementia Disease Medical Center, Regional Mental Health Center, ACT teams, psychiatric home nursing, home rehabilitation, elderly group homes (こむれび), and day care programs including the はなみずき severe dementia day care. Key services include psychiatric emergency acute care (48 beds), general psychiatric inpatient care (60 beds), psychiatric regional integrated care (60 beds), psychiatric sanatorium care (60 beds), and dementia-specialized services. The hospital has undergone major digital transformation including LINE-based appointment booking, telephone/online consultations with credit card payment, digital radiography (CT and MRI with PACS), polypharmacy reduction programs led by clinical pharmacists, and standardized swallowing-adjusted meal services. The hospital also runs the O-HAG artist-in-residence program and the OUCHI community support platform/café.

Differentiator

Problem solved

Functional benefit

Brands

• O-HAG (Oouchi Hospital Artists' Guild): Artists-in-residence program where artists stay, create, and interact at the hospital and related facilities for one year
• OUCHI
• はなみずき (Hanamizuki)

Products and services

• Outpatient Psychiatric Consultation Services
• Inpatient Psychiatric Care (228 beds)
• Tokyo Dementia Disease Medical Center
• Regional Mental Health Center
• ACT (Assertive Community Treatment)
• Psychiatric Home Nursing
• Home Rehabilitation
• Elderly Group Home (Komorebi)
• Day Care (including Hanamizuki Severe Dementia Day Care)
• OUCHI Community Support Brand and Cafe
• Designated Consultation Support Office (Machino)
• LINE-based Psychiatric First-Visit Appointment System
• Telephone and Online Consultation Service
• MRI Diagnostic Imaging
• CT Diagnostic Imaging
• Clinical Laboratory Testing Services
• Adult Developmental Disorder Outpatient Clinic
• O-HAG (Oouchi Hospital Artists' Guild)
• Polypharmacy Reduction Program
• Swallowing-Adjusted Meal Service

Quantifiable outcome

• 精神科救急急性期48床、精神科地域包括ケア60床、精神療養60床の計228床で段階的ケア体制を構築
• +2 more outcomes

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Eight partnerships are on record, tiered minor and core.

• 新加坡ナンヤン理工学院 (Nanyang Polytechnic)minorOthers · 1 January 2025
• 平成医療福祉グループ（HMH Group）coreStrategic or Co-development Partner · 1 January 2024大内病院は平成医療福祉グループの病院之一。グループ全体では東京・大阪はじめ全国に100超の病院・介護施設・福祉施設を運営。グループとして平成医療福祉グループ学会（共催研究発表）、ロボット介護機器・リハビリテーションチーム、医学研鑽等の共有資源を活用。
• 平成扇病院minorStrategic or Co-development Partner · 1 January 2024平成医療福祉グループ傘下の姉妹病院。Footerのグループ病院ロゴにおいて連携・共同グループとして言及。
• 多摩川病院minorStrategic or Co-development Partner · 1 January 2024平成医療福祉グループ傘下の姉妹病院。Footerのグループ病院ロゴにおいて連携・共同グループとして言及。
• おうち診療院 西新井coreChannel Partner/ Reseller/ Distributor · 1 January 2024平成医療福祉グループの在宅医療サービス。大内病院との連携で地域精神ケアの地域完結型サービスを提供。Footerのグループ関連サービスとして連携。
• おうち訪問看護ステーション西新井coreChannel Partner/ Reseller/ Distributor · 1 January 2024訪問看護ステーション。大内病院との連携で精神科訪問看護・訪問リハビリテーションを提供し地域で支える体制を構築。Footerのグループ関連サービスとして連携。
• OUCHI（ウチ）coreStrategic or Co-development Partner · 1 January 2024平成医療福祉グループの在宅生活支援ブランド。OUCHI HOME・CAFE等の地域生活支援施設を通じて大内病院の地域精神ケア構想を実現。Footerおよび取り組み内で言及。
• OUCHI HOME・CAFEcoreStrategic or Co-development Partner · 1 January 2024平成医療福祉グループの地域生活支援拠点。新加坡ナンヤン理工学院の学生视察受け入れるなど、国際的な連携も実施。

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Tamagawa Hospital (多摩川病院): Sister psychiatric hospital within the Heisei Medical Welfare Group operating under the same shared resources, group conferences, and rehabilitation-robot infrastructure — directly comparable in patient mix and community-care orientation.
• Inokashira Hospital (井之頭病院): Independent Tokyo-area psychiatric hospital known for community-integrated care and ACT-style services; comparable in patient population, mission, and emphasis on deinstitutionalization.
• Ryokufuso Hospital (緑風荘病院): Psychiatric hospital operating a similar inpatient plus community-services mix; relevant for comparing sanatorium-style capacity and deinstitutionalization transition.
• Seiwa Hospital (晴和病院): Tokyo-area psychiatric hospital with comparable inpatient and outpatient services; useful peer for unit economics and community mental-health program benchmarking.
• Heisei Ougi Hospital (平成扇病院): HMW Group sibling psychiatric hospital, jointly branded and operationally linked to Oouchi, providing a near-clone comparison for group-level unit economics and community psychiatric care delivery.
• Otani Hospital (大谷病院): Tokyo-area psychiatric hospital delivering comparable psychiatric and community mental-health services; relevant peer for referral patterns, workforce practices, and reimbursement economics.
• Hirakawa Hospital (平川病院): Psychiatric hospital with an established community-integration focus; comparable for ACT, home-visit nursing, and group-home operating models within Japanese psychiatric care.

Broad incumbents

• Tokyo Metropolitan Matsuzawa Hospital (都立松沢病院): Large public psychiatric hospital in Tokyo offering comprehensive inpatient and community services across a broader mandate; benchmark for public-sector psychiatric capacity in the same geography.
• National Center of Neurology and Psychiatry (NCNP, 国立精神・神経医療研究センター): Japan's national center for psychiatry and neurology combining hospital, research, and training functions; broader-scope incumbent relevant for benchmarking clinical excellence and policy leadership.

Others

• St. Marianna University Hospital (聖マリアンナ医科大学病院): Academic medical center with a prominent psychiatric department; relevant as a teaching-hospital comparator for clinical protocols, residency pipeline, and evidence-based psychiatric practice.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• Instagraminstagram.com/oouchi_hospital

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries6 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 Oouchi Hospital