Summary

Dr. Stephen Oishi is an internal medicine physician who earned his medical degree from Georgetown University School of Medicine. With over four decades of practice experience, he has built extensive expertise in managing complex internal medicine conditions. Dr. Oishi provides care in English and has dedicated his career to comprehensive adult medical care.

Dr. Oishi practices at multiple locations throughout Honolulu, Hawaii, including Kuakini Medical Center, The Queens Medical Center, and Straub Benioff Medical Center. He specializes in treating chronic kidney disease and type 2 diabetes mellitus, including advanced kidney disease management. His approach to care incorporates physical therapy and strength training to help patients maintain their health and mobility. Patients have given Dr. Oishi an average rating of 3.7 out of 5 stars on Vitals.

Overview based on verified provider data

Quick Facts

  • 3.7
  • 42 years of experience
  • speaks English
  • Georgetown University School Of Medicine
  • 2 written reviews
  • 2 specialties
  • 8 areas of expertise
  • 2 board certifications
  • 3 hospital affiliations
  • 4 office locations
  • Male

Office Locations

Dr. Stephen Masato Oishi has 4 locations

The Queens Medical Center

1301 Punchbowl StHonolulu, HI 96813

Kuakini Medical Center

347 N Kuakini StHonolulu, HI 96817

Straub Medical Center

888 S King StHonolulu, HI 96813

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Dr. Stephen Masato Oishi, MDDr. Kerry Erin GonyeauDr. Hayk GhukasyanDr. Alia Mahmoud Khoja
Internal MedicineInternal MedicineHospital MedicineHospice & Palliative Medicine
3.7 
42 Years of Experience 3 Years of Experience 7 Years of Experience 15 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English Speaks English, Spanish
Honolulu , HITripler Amc , HISan Francisco , CAHonolulu , HI
Med School: Georgetown University School Of Medicine Med School: Uniformed Services Univ Of The Health Sciences F E Hebert Schl Of Medicine Med School: St Georges University School Of Medicine Med School: University Of Dammam College Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Stephen Masato Oishi

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. Stephen Masato Oishi has the following 2 specialties

Specialty Expertise

Dr. Stephen Masato Oishi has the following 8 areas of expertise

  • Check-up
  • Heartburn
  • Immunization
  • Other
  • Physical
  • Vaccination
  • Weight Loss
  • Weight Loss (non-surgical)

Certifications, License, & Education

42 Years Experience

Dr. Stephen Masato Oishi holds an expired medical license in the state of Hawaii.

Medical License

Medical Doctor with an expired medical license in the state of Hawaii that expired in 2026.

Education & Training

Medical School

Graduated from Georgetown University School Of Medicine in 1984.

NPI Number

Dr. Oishi's NPI number is 1194813832.

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Frequently Asked Questions

Is Dr. Stephen Masato Oishi accepting new patients?
Dr. Stephen Masato Oishi has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
Does Dr. Stephen Masato Oishi accept my insurance?
You can see the insurance plans that Dr. Stephen Masato Oishi accepts on their Vitals profile.
Which hospitals is Dr. Stephen Masato Oishi affiliated with?
Dr. Stephen Masato Oishi is affiliated with Kuakini Medical Center, The Queens Medical Center, and Straub Benioff Medical Center.
Where is Dr. Stephen Masato Oishi's office located?
Dr. Stephen Masato Oishi's office is located at 405 N Kuakini St Ste 601, Honolulu, HI, 96817.
How can I make an appointment with Dr. Stephen Masato Oishi?
You can find contact information for Dr. Stephen Masato Oishi here on Vitals.

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