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Internal Medicine Doctors in Hawaii

Data updated monthly · Last refresh October 2026

899 Internal Medicine providers practice in Hawaii, including 196 (22%) offering telehealth. The largest concentration is in Honolulu. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.

899providers
196telehealth
Honolulutop city

Internal Medicine by city in Hawaii

Choose a city to see providers there.

Internal Medicine in Honolulu575 providers
Internal Medicine in Wailuku39 providers
Internal Medicine in Aiea36 providers
Internal Medicine in Hilo34 providers
Internal Medicine in Tripler Army Medical Center33 providers
Internal Medicine in Kailua21 providers
Internal Medicine in Ewa Beach17 providers
Internal Medicine in Waipahu16 providers
Internal Medicine in Kaneohe12 providers
Internal Medicine in Kailua Kona11 providers
Internal Medicine in Lihue10 providers
Internal Medicine in Tripler Amc10 providers
Internal Medicine in Kamuela9 providers
Internal Medicine in Kealakekua8 providers
Internal Medicine in Kahului6 providers
Internal Medicine in Waianae5 providers
Internal Medicine in Kihei5 providers
Internal Medicine in Kapolei5 providers
Internal Medicine in Pearl Harbor4 providers
Internal Medicine in Wahiawa4 providers
Internal Medicine in Tamc3 providers
Internal Medicine in Lahaina3 providers
Internal Medicine in Kaunakakai3 providers
Internal Medicine in Mililani3 providers

Where Internal Medicine Doctors in Hawaii practice

From CMS Medicare enrollment records covering 438 of the 899 providers listed here (49%). Providers who do not bill Medicare are not included in these figures.

35%solo or small practice (under 10 clinicians)
13%mid-size group (10 to 99)
52%large group or health system (100+)

Largest practice groups

Group (as registered with Medicare)Internal Medicine DoctorsAll clinicians in groupMain city
Queens University Medical Group83614Honolulu
Hawaii Permanente Medical Group Inc.68705Honolulu
Straub Clinic and Hospital48420Honolulu
The Queens Medical Center12191Honolulu
Castle Medical Center1077Kailua

Hospitals where they hold privileges

HospitalCityOwnershipCMS star ratingInternal Medicine Doctors affiliated
The Queens Medical CenterHonoluluNonprofit3 of 5220
Pali Momi Medical CenterAieaFor-profit4 of 5118
Kapiolani Medical Center for Women & ChildrenHonoluluNonprofitNot rated87
Straub Clinic and HospitalHonoluluFor-profit4 of 574
Kuakini Medical CenterHonoluluNonprofit4 of 561

Sources: CMS Doctors and Clinicians (August 2026) and Facility Affiliation files (August 2026); hospital ownership type and overall star rating from CMS Hospital General Information (July 2026). A clinician in several groups is counted once, in the largest group they bill through. Ownership type is what the hospital reports to CMS; it does not show private equity or other investor ownership. How we build this directory.

Internal Medicine providers in Hawaii

Listed by city, largest first. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.

Dr. Alan Oki, MD
Aiea, HI · $1,156 in drug and device payments (2025) · (808) 484-2042
Dr. Aldrich Alden Ricalde, MD
Aiea, HI · No drug or device payments recorded (2025) · Telehealth · (808) 483-6400
Dr. Alvin Fuse, M.D.
Aiea, HI · No drug or device payments recorded (2025) · (808) 488-0990
Dr. Bryan Matsumoto, M.D.
Aiea, HI · No drug or device payments recorded (2025) · (808) 488-0990
Dr. Christian Kitamura, M.D.
Aiea, HI · No drug or device payments recorded (2025) · (808) 488-0990
Dr. Claudio Lencinas, M.D.
Aiea, HI · $230 in drug and device payments (2025) · (808) 483-6400
Dr. Craig Hamasaki, M.D.
Aiea, HI · $16 in drug and device payments (2025) · (808) 486-9119
Dr. Daniel Harada, MD
Aiea, HI · $524 in drug and device payments (2025) · (808) 488-4412
Dr. Daniel Wu, M.D.
Aiea, HI · No drug or device payments recorded (2025) · Telehealth · (808) 483-6400
Dr. David Humber, MD
Aiea, HI · $27 in drug and device payments (2025) · (808) 486-6000
Dr. David Saito, M.D.
Aiea, HI · $947 in drug and device payments (2025) · Telehealth · (808) 487-2277
Dr. Dawn Miura, M.D.
Aiea, HI · No drug or device payments recorded (2025) · (808) 487-2277
Dr. Eric Smedegaard, M.D.
Aiea, HI · $27 in drug and device payments (2025) · (808) 486-6000
Dr. Francis Buto, M.D.
Aiea, HI · $1,514 in drug and device payments (2025) · Telehealth · (808) 488-0990
Dr. Fred Tanabe, M.D.
Aiea, HI · No drug or device payments recorded (2025) · (808) 488-0990
Dr. Joel Kobayashi, M.D.
Aiea, HI · $1,331 in drug and device payments (2025) · (808) 487-5115
Dr. Keolamau Yee, MD
Aiea, HI · $1,258 in drug and device payments (2025) · Telehealth · (808) 488-0990
Dr. Ky Le, MD
Aiea, HI · $1,693 in drug and device payments (2025) · Telehealth · (808) 954-4500
Dr. Luis Ragunton, M.D.
Aiea, HI · $151 in drug and device payments (2025) · Telehealth · (808) 488-8750
Dr. Malissa Iida-takashima, MD
Aiea, HI · $1,531 in drug and device payments (2025) · Telehealth · (808) 488-0990
Dr. Marisa Nguyen, M.D.
Aiea, HI · No drug or device payments recorded (2025) · Telehealth · (808) 483-6400
Dr. Mark Nishihara, M.D.
Aiea, HI · $1,538 in drug and device payments (2025) · Telehealth · (808) 488-0990
Dr. Michael Dimitrion, MD
Aiea, HI · No drug or device payments recorded (2025) · (808) 488-7000
Dr. Michael Kurosawa, M.D.
Aiea, HI · No drug or device payments recorded (2025) · Telehealth · (808) 483-6400
Dr. Michael Lam, M.D.
Aiea, HI · No drug or device payments recorded (2025) · Telehealth · (808) 485-3032
Dr. Michael Mihara, M.D.
Aiea, HI · $1,022 in drug and device payments (2025) · Telehealth · (808) 488-0990
Dr. Mona Suzuki, M.D.
Aiea, HI · No drug or device payments recorded (2025) · Telehealth · (808) 484-2904
Dr. Nicole Leong, MD
Aiea, HI · No drug or device payments recorded (2025) · Telehealth · (808) 483-6400
Dr. Robert Schiff, M.D.
Aiea, HI · $83 in drug and device payments (2025) · Telehealth · (808) 488-9250
Dr. Ron Teramoto, MD
Aiea, HI · No drug or device payments recorded (2025) · (808) 487-3685
Dr. Roy Ebisu, MD
Aiea, HI · $211 in drug and device payments (2025) · (808) 488-7770
Dr. Russell Tom, M.D.
Aiea, HI · $458 in drug and device payments (2025) · Telehealth · (808) 487-2277
Dr. Shayne Castanera, M.D.
Aiea, HI · No drug or device payments recorded (2025) · (808) 486-6000
Dr. Stephen Miyasato, MD
Aiea, HI · $1,169 in drug and device payments (2025) · Telehealth · (808) 487-9922
Dr. Timothy Ahu, MD
Aiea, HI · No drug or device payments recorded (2025) · (808) 485-4355
Dr. Wayne Suga, MD
Aiea, HI · No drug or device payments recorded (2025) · (808) 484-5656
Dr. Leon Matsuo, MD
Captain Cook, HI · No drug or device payments recorded (2025) · Telehealth · (808) 825-6557
Dr. C. Jenkins, M.D.
Eleele, HI · No drug or device payments recorded (2025) · (808) 335-0579
Dr. Albert Lin, M.D.
Ewa Beach, HI · No drug or device payments recorded (2025) · (808) 678-7000
Dr. Aurora Mariani, M.D.
Ewa Beach, HI · $1,229 in drug and device payments (2025) · Telehealth · (808) 680-0008
Dr. Chihui Yuan, D.O.
Ewa Beach, HI · No drug or device payments recorded (2025) · (401) 684-2564
Dr. Elmer Baysa, MD
Ewa Beach, HI · $231 in drug and device payments (2025) · (808) 689-8315
Dr. Glenda Malana, MD
Ewa Beach, HI · No drug or device payments recorded (2025) · Telehealth · (775) 219-6855
Dr. Jasmine Kelly, MD
Ewa Beach, HI · $1,940 in drug and device payments (2025) · Telehealth · (808) 678-0700
Dr. Kimberly Kyle, D.O
Ewa Beach, HI · No drug or device payments recorded (2025) · (808) 691-3000
Dr. Lawrence Miyashiro, M.D.
Ewa Beach, HI · $27 in drug and device payments (2025) · (808) 678-7000
Dr. Myrna Uytingco, M.D.
Ewa Beach, HI · No drug or device payments recorded (2025) · Telehealth · (808) 691-3150
Dr. Natasha Parekh
Ewa Beach, HI · No drug or device payments recorded (2025) · (808) 691-8200
Dr. Neel Tapryal, MD
Ewa Beach, HI · No drug or device payments recorded (2025) · (808) 691-3000
Dr. Roger Palmer, M.D.
Ewa Beach, HI · $507 in drug and device payments (2025) · (808) 678-7000

Conditions Internal Medicine providers in Hawaii commonly treat

Patients often search by condition rather than specialty. These are conditions typically managed by Internal Medicine providers. Individual practices vary, so confirm with the provider before booking.

Common questions

How many Internal Medicine providers are in Hawaii?

There are 899 Internal Medicine providers with active NPI records practicing in Hawaii, according to federal NPPES data refreshed monthly.

Do Internal Medicine providers in Hawaii offer telehealth?

Yes. 196 of the 899 Internal Medicine providers in Hawaii (about 22%) report offering telehealth services in CMS data.

Which cities in Hawaii have the most Internal Medicine providers?

Honolulu (575), Wailuku (39), Aiea (36) have the highest concentration of Internal Medicine providers in Hawaii.

How many Internal Medicine providers in Hawaii received drug or device company payments?

282 of 899 Internal Medicine providers in Hawaii (31%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.

What conditions do Internal Medicine providers in Hawaii treat?

Internal Medicine providers commonly treat high blood pressure, type 2 diabetes, high cholesterol, preventive care, chronic disease management and related conditions. Individual practices vary, so confirm with the provider before booking.

Where does this data come from?

Provider counts and profiles come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.

Do most Internal Medicine Doctors in Hawaii work in independent practices or large health systems?

Among 438 Internal Medicine Doctors in Hawaii enrolled in Medicare, 35% bill through a solo or small practice with fewer than 10 clinicians, 13% through a mid-size group of 10 to 99, and 52% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.

Which hospitals do Internal Medicine Doctors in Hawaii work at?

According to CMS facility affiliation records, the Hawaii hospitals where the most Internal Medicine Doctors hold privileges are The Queens Medical Center in Honolulu; Pali Momi Medical Center in Aiea; Kapiolani Medical Center for Women & Children in Honolulu.

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Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory. Are you a Internal Medicine in Hawaii? Get featured.