Sapporo Shiroishi Memorial Hospital

What Sapporo Shiroishi Memorial Hospital does

Sapporo Shiroishi Memorial Hospital is a social medical corporation (社会医療法人 医翔会) hospital located in Shiroishi-ku, Sapporo, Hokkaido, Japan, specializing in the integrated treatment of arteriosclerotic disease from head to toe. The hospital operates six clinical departments — Neurosurgery, Neurology, Cardiovascular Internal Medicine, Cardiovascular Surgery, Nephrology/Dialysis, and Rehabilitation — supported by four specialized centers: the Cerebrovascular Endovascular Treatment Center / Stroke Center, the Cardiovascular Catheterization Treatment Center, the Arrhythmia Treatment Center, and the Blood Purification Center. The Stroke Center is certified as a Japan Stroke Society Primary Stroke Center Core facility, and the Cardiovascular Surgery department is designated a Three-Society Specialist Training Facility. The hospital runs a 24/7 emergency neurosurgery service and operates an ICU plus a recovery-phase rehabilitation ward. Infrastructure includes three MRI units, catheterization labs, interventional neuroradiology suites, and a recently doubled hyperbaric oxygen therapy installation (from one to two units in July 2022).

The hospital's commercial activity is built around Japan's universal health insurance system, generating revenue through fee-for-service claims for outpatient consultations, inpatient care, surgical procedures, catheterization treatments, dialysis, rehabilitation therapy, and diagnostic imaging. Pricing is governed by the official medical fee schedule; copayments range from 10-30 percent depending on age and income. Distribution is direct-to-patient via the main hospital campus, three wholly-owned satellite clinics (Nangoku 18-chome opened July 2024, Docho-mae opened September 2024, Megumino opened October 2025), a free shuttle bus network, and a referral network with regional partner facilities. The hospital was the first in Hokkaido to introduce Pulse Field Ablation (November 2024) and the Affera Mapping and Ablation System (April 2026) for arrhythmia treatment, and has been ranked No. 1 in Hokkaido for cerebral infarction patient intake in published rankings.

A modest technology layer is present, primarily the AI-powered pre-visit intake questionnaire (AI問診) launched in July 2023 using the ubie platform to automate patient symptom capture, along with online eligibility verification (November 2022) and a referral-focused institution designation (August 2023). The hospital discontinued day-service and home-visit rehabilitation services effective July 2026 to focus on acute specialty care. Operations are led by Director Doi Hiroshi (appointed April 2024, over 5,000 cardiac surgery cases) under the umbrella of the Tsushima Medical Welfare Group, with academic ties to Sapporo Medical University and Japan Medical University.

Name

Sapporo Shiroishi Memorial Hospital

Legal name

社会医科大学 医翔会 札幌白石記念病院

Website

https://ssn-hp.jp

Company type

Private

Founded year

2013

Operating status

Operating

Headcount range

101–250 employees

Short description

Sapporo Shiroishi Memorial Hospital is a social medical corporation hospital in Sapporo, Japan, treating arteriosclerotic disease from head to toe via neurosurgery, neurology, cardiovascular surgery, and nephrology departments, with 24/7 emergency neurosurgery and three satellite clinics.

Ownership category

akta.pro rank

Product category

Specialty Hospital (Cardiovascular and Cerebrovascular)

NAICS

General Medical and Surgical Hospitals (6221)

SIC

Services-General Medical & Surgical Hospitals, Nec (8062), Services-Hospitals (8060), Services-Specialty Outpatient Facilities, Nec (8093)

akta.pro industry

PRIMARYHLADAJAB

Skilled Nursing Facility (SNF)-Based Rehab Units

Healthcare & Life Sciences/Elder Care & Long-Term Care/Rehabilitation & Post-Acute Care Centers (Inpatient/Outpatient)

SECONDARYHLADADAH

Cardiac & Pulmonary Rehabilitation SNFs

Healthcare & Life Sciences/Elder Care & Long-Term Care/Skilled Nursing Facilities (SNF) & Nursing Homes

SECONDARYHLAFAOAG

Neurorehabilitation-Integrated LTACHs (e.g., TBI/SCI/Stroke)

Healthcare & Life Sciences/Healthcare Providers & Systems/Long-Term Acute Care Hospitals

Keywords

• Stroke care services
• Cardiovascular disease treatment
• Neurosurgery services
• Dialysis treatment services
• Arrhythmia treatment services

Headquarters

HQ city

Sapporo

HQ country

Japan

HQ region

Asia

Offices4 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

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

Revenue model

1. National Health Insurance Medical Services: The hospital operates as a public medical institution providing diagnosis, treatment, surgery, hospitalization, and rehabilitation services covered under Japan's universal health insurance system (national health insurance, employees' health insurance, late-stage elderly healthcare). Revenue is generated through insurance claims filed for outpatient consultations, inpatient care, surgical procedures, catheterization treatments, dialysis sessions, rehabilitation therapy, and diagnostic imaging.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels9 records

Core offering

Sapporo Shiroishi Memorial Hospital is a specialty hospital treating arteriosclerotic disease comprehensively from head to toe. It delivers inpatient and outpatient medical services including emergency neurosurgery (24/7), stroke care, cardiovascular catheterization, arrhythmia treatment, cardiac surgery, dialysis, and rehabilitation, supported by AI-powered intake and an affiliated network of three satellite clinics and a free shuttle bus service in Sapporo, Hokkaido.

Product overview

Sapporo Shiroishi Memorial Hospital is a specialized cardiovascular and cerebrovascular disease hospital providing comprehensive care 'from head to feet.' The hospital operates a platform structure consisting of six clinical departments (Neurosurgery, Neurology, Cardiovascular Internal Medicine, Cardiovascular Surgery, Nephrology/Dialysis, and Rehabilitation) supported by four specialized treatment centers (Cerebrovascular Endovascular/Stroke Center, Cardiovascular Catheterization Center, Arrhythmia Treatment Center, and Blood Purification Center). The hospital's flagship services include acute stroke care with 24/7 availability, catheter-based cardiovascular treatments, arrhythmia management including Hokkaido-first Pulse Field Ablation and Affera Mapping/Ablation systems, and comprehensive rehabilitation including a recovery-phase inpatient ward and outpatient programs. The hospital also provides AI-powered pre-visit symptom questionnaires (AI問診), brain health screening (脳ドック), ICU care, MRI diagnostics, and hyperbaric oxygen therapy. A network of three affiliated satellite clinics (南郷18丁目, 道庁前, 恵み野) extends outpatient services into the community. The hospital was designated a Japan Stroke Society Primary Stroke Center Core facility and a Three-Society Cardiovascular Surgery Specialist Training Facility.

Differentiator

Problem solved

Functional benefit

Brands

• Heart Net: Communication magazine (広報誌) published by the hospital for patients and community members

Products and services

• Neurosurgery Department (脳神経外科) Surgical department treating brain and nervous system conditions including stroke, brain tumors, and vascular disorders; operates the 24-hour emergency cerebrovascular endovascular treatment center.
• Neurology Department (脳神経内科) Medical department specializing in brain and nerve disorders including cognitive impairment, memory disorders (もの忘れ/MCI), and neurological diseases.
• Cardiovascular Internal Medicine (循環器内科) Medical department treating heart and blood vessel diseases including arrhythmias, heart failure, and coronary artery disease.
• Cardiovascular Surgery (心臓血管外科) Surgical department performing open-heart surgery, valve procedures, and vascular surgery; recognized as a specialist training facility by the Three-Society Cardiovascular Surgery Specialist Certification Structure.
• Nephrology and Artificial Dialysis (腎臓内科・人工透析) Medical department and blood purification center providing dialysis services, including nighttime dialysis initiated May 2022.
• Cerebrovascular Endovascular Treatment Center / Stroke Center (脳血管内治療センター・脳卒中センター) 24-hour treatment center for acute stroke and cerebrovascular diseases using minimally invasive endovascular techniques; designated as a Japan Stroke Society Primary Stroke Center Core facility since April 2022.
• Cardiovascular Catheterization Treatment Center (心血管カテーテル治療センター)
• Arrhythmia Treatment Center (不整脈治療センター)

Quantifiable outcome

• Ranked No. 1 in Hokkaido for cerebral infarction patient intake (Hospital Real Strength 2024)
• +2 more outcomes

Named customers1 record

Segments1 record

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability2 records

Feature7 records

Partnerships

Two partnerships are on record, tiered core.

• Tsushima Medical Welfare Group (つしま医療福祉グループ)coreStrategic or Co-development Partner · 1 July 2024Tsushima Medical Welfare Group is the parent/group entity for Sapporo Shiroishi Memorial Hospital and its affiliated clinics. The group provides medical, nursing care, and welfare services, and the hospital has a business partnership contract with the group. 日本医療大学 (Japan Medical University) is also part of this group and collaborates on education and research.
• Japan Medical University (日本医療大学)coreStrategic or Co-development PartnerJapan Medical University is a member of the Tsushima Medical Welfare Group and collaborates with the hospital on medical education, research, and shared shuttle bus services.

Scale indicators5 records

Recent moves14 records

Expansion highlights6 records

Regional players

• NTT East Sapporo Hospital: Regional general hospital in Sapporo providing acute care across multiple specialties. Comparable as another mid-sized Sapporo-based hospital competing for general inpatient and outpatient demand in the same local market.
• Tenshi Hospital: Mid-sized private hospital in Sapporo providing general acute care with cardiology and neurology departments. Comparable as a Sapporo-based private hospital competing in overlapping outpatient and acute-care segments.
• Sapporo City General Hospital: Public general hospital operated by Sapporo city government, offering broad acute and emergency services. Comparable as a same-metropolitan competitor for emergency stroke and cardiovascular cases.
• Kushiro Rosai Hospital: Regional acute care hospital in eastern Hokkaido operated under the Rosai hospital system. Comparable as another Hokkaido-based regional hospital facing similar demographic and reimbursement dynamics for arteriosclerotic and stroke care.
• Sapporo Medical University Hospital: Major academic medical center located in the same Sapporo metropolitan area, offering broader specialty coverage including advanced stroke and cardiovascular services. Comparable because it competes directly for complex tertiary referrals and visiting-doctor relationships in Hokkaido.
• Hokkaido University Hospital: The largest academic medical center in Hokkaido, providing full-spectrum inpatient and outpatient services with strong cardiovascular and neurosurgery programs. Comparable as the dominant tertiary referral competitor in the same geography.

Direct peers

• Sakakibara Heart Institute of Okayama: Japanese specialty hospital dedicated to cardiovascular care, including advanced catheterization and arrhythmia treatment. Comparable as a similarly specialized cardiac hospital outside of an academic-center framework, offering insights into specialty-hospital economics in Japan.
• Sapporo Cardiovascular Hospital: Regional cardiac specialty hospital in Sapporo focused on cardiovascular diagnosis and treatment. Comparable because it directly competes for the same cardiac catheterization, arrhythmia, and cardiovascular surgery patient pool in the same metropolitan market.

Broad incumbents

• Keiyu Hospital: Large private general hospital in Yokohama with strong cardiovascular and stroke programs. Comparable as a similarly structured Japanese specialty-anchored general hospital offering cath labs, arrhythmia, and rehabilitation services.
• Juntendo University Hospital: Large Tokyo-based academic hospital with nationally recognized cardiovascular and stroke programs. Comparable as a benchmark for advanced Japanese specialty cardiovascular/stroke care delivery and reimbursement economics.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/shiroishi_kinen
• Facebookfacebook.com/634492106603757
• Instagraminstagram.com/shiroishi_kinen

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Subsidiaries3 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 Sapporo Shiroishi Memorial Hospital