Dr. Masao Omata

Dr. Masao Omata, MD, PhD

Dr. Masao Omata is a hepatologist and president of Yamanashi Central Hospital and Kita Hospital in Yamanashi, Japan. He is known for viral hepatitis and liver cancer.

Professor Omata is president of Yamanashi Central and Kita Hospitals and professor emeritus at the University of Tokyo, where he chaired the Department of Gastroenterology. He has helped lead the Asian Pacific Association for the Study of the Liver for many years and received the Emperor Showa Memorial Academic Award in 2025.

About Dr. Masao Omata

• Full Name: Masao Omata, MD, PhD
• Credentials: MD, PhD
• Specialty: Hepatology (liver disease)
• Subspecialty and Expertise: Viral hepatitis; hepatocellular carcinoma; liver cancer ablation and molecular diagnostics
• Current Role: President, Yamanashi Central Hospital and Kita Hospital; Professor Emeritus, The University of Tokyo
• Years in Practice: Career dates are being confirmed from the official profile
• Languages: Japanese and English (confirm with the office)
• Gender: Male
• New Patients: He holds a hospital president role; his personal clinic availability was not confirmed
• Telehealth: Not confirmed on the public profiles reviewed; ask the office whether virtual visits are offered
• NPI: Not applicable (NPI numbers are issued only to US providers)

Address & Contact

• Practice: Yamanashi Central Hospital
• Address: Yamanashi Central Hospital, 1-1-1 Fujimi, Kofu, Yamanashi 400-8506, Japan (address being confirmed)
• Phone: Being confirmed; use the contact details on the official website
• Fax and Email: No public fax or professional email listed on the profiles reviewed
• Website: Yamanashi Central Hospital official website
• Appointments: Use the Book An Appointment button on this page or the booking line on the official website; some services need a referral
• Office Hours: Clinic days vary; confirm with the office

Specialties & Education

Conditions treated, procedures and areas of expertise listed in public professional profiles for Dr. Masao Omata:

• Hepatitis B and hepatitis C
• Hepatocellular carcinoma
• Liver cancer genomic testing
• Cirrhosis

Education and training:

• Medical Degree: Chiba University School of Medicine (1970)
• Training in the US: Yale University and the Liver Unit, University of Southern California (about 6 years)
• Academic Career: Chairman, Second Department of Internal Medicine (1992) and later Department of Gastroenterology, University of Tokyo

Certifications, License & Affiliations

• Specialty: Gastroenterology and hepatology (Japanese specialist qualification)
• Medical License: Licensed to practice medicine; confirm current status with Japan’s Ministry of Health, Labour and Welfare physician register
• Hospital and Academic Affiliations: Yamanashi Central Hospital; Yamanashi Kita Hospital; The University of Tokyo (professor emeritus)

Insurance

Hospital care in Japan is covered by the national health insurance system with patient co-payment. International patients should contact the hospital’s international office.

Fees

Consultation fees are not published on the public profiles reviewed. Ask the hospital or clinic for current fees, accepted payment methods and the cancellation policy.

Professional Information

• Emperor Showa Memorial Academic Award (2025) from the Japanese Red Cross Society
• APDWF Meritorious Award (2025)
• Past president of APASL and co-editor-in-chief of Hepatology International
• More than 1,100 English-language publications

Reviews & Ratings

Find MD Health does not create its own overall rating. Patient ratings for Dr. Masao Omata may appear on Google and local hospital review sites, each with its own score and review count. A verified rating and review count for each platform was not recorded at the time of this update, so check each platform directly.

Verification

• APASL announcements and APDWF citation (apasl.info, November 2025), checked October 1, 2026
• APASL Oncology organising committee pages, checked October 1, 2026
• emedevents speaker profile, checked October 1, 2026
• Profile compiled October 1, 2026. Details marked as being confirmed should be checked against the official sources above.

Frequently Asked Questions

What is Dr. Masao Omata known for?

Dr. Masao Omata is known for viral hepatitis and liver cancer.

Where does Dr. Masao Omata practice?

He practices and president of Yamanashi Central Hospital and Kita Hospital in Yamanashi, Japan.

What conditions does Dr. Masao Omata treat?

He focuses on viral hepatitis and liver cancer.

How can I book an appointment with Dr. Masao Omata?

Use the Book An Appointment button on this page to send a request, then confirm the location, referral needs and availability with Yamanashi Central Hospital before you visit.

Find MD Health Disclaimer

Provider location, specialty information, insurance participation, and availability may change. Confirm current details directly with Yamanashi Central Hospital.