Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Stephen Masato Oishi, MD

Individual provider Internal Medicine Physician · NPI 1194813832

Stephen Masato Oishi, MD is an Internal Medicine in Honolulu, Hawaii. Graduated from Georgetown University School of Medicine in 1984, 42 years ago. Practices with Queens University Medical Group, a 623-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Hawaii.

Years since qualifying
42
Trained at
Georgetown University School of Medicine
Licensed in
HI
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

321 N Kuakini St Ste #201
Honolulu, HI 96817-2364
Phone: (808) 523-8611
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MD-7480 (HI)

Record details

NPI number1194813832
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 10, 2006
Last updated in NPPESJuly 8, 2007

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolGEORGETOWN UNIVERSITY SCHOOL OF MEDICINE
Graduated 1984 (42 years in practice)
Group practice Queens University Medical Group — 623 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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