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Internal Medicine Providers in Hilo, HI

Browse 34 Internal Medicine providers listed in NPPES with a practice address in Hilo, Hawaii.

34 Healthcare Providers

How Hilo compares with the U.S.

Hilo has 67 clinicians in Internal Medicine per 100,000 residents, about 1.5 times the U.S. rate of 44.

That is 34 active clinicians in Internal Medicine with a practice address in Hilo, for a population of 50,404.

That is close to the Hawaii rate of 62.

What these numbers mean

Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.

A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.

City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places. Cities with hospitals or large medical centers often list more specialists than the number of residents alone would suggest, because patients also come from nearby areas.

100% of clinicians in Internal Medicine in Hilo listed in the CMS Medicare file (21 of 21) accept Medicare assignment. That is similar to the Hawaii share of 96%.

What is Medicare assignment?

A clinician who accepts Medicare assignment agrees to take the Medicare-approved amount as full payment for services that Original Medicare covers. You usually still pay your deductible and coinsurance. This comes from the CMS Doctors and Clinicians file and applies to Original Medicare only. Medicare Advantage plans have their own provider networks. It does not show whether a clinician is taking new patients.

Some clinicians are listed as "may accept assignment," which means they can decide case by case. Clinicians without an assignment flag, or who are not in the CMS file, are not counted as accepting assignment. That does not mean they refuse Medicare. Ask the office before your visit.

14% of clinicians in Internal Medicine in Hilo listed in the CMS Medicare file (3 of 21) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is lower than the Hawaii share of 40%.

About the telehealth indicator

The telehealth indicator comes from CMS. It marks clinicians whose recent paid Medicare claims include services delivered by telehealth. It means a clinician has provided some services by telehealth, not that every visit can be done online. A clinician without the indicator may still offer telehealth, for example to patients who are not on Medicare. Ask the office which visits can be done by video or phone.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com ยท Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Medicare assignment and telehealth indicators: CMS Doctors and Clinicians National Downloadable File. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Internal Medicine Medicare (PECOS) Enrollment & Ordering Eligibility

Medicare enrollment and order/referring eligibility listed by CMS for Internal Medicine practitioners in Hilo, HI

Source: CMS PECOS
PECOS Enrolled Specialists 26 In Hilo, HI
Part B Lab & Imaging Eligible 27 Diagnostic Referrals
DME Ordering Eligible 27 Durable Medical Equipment
Home Health Agency Referrals 27 HHA Ordering Eligible
Showing 1โ€“20 of 34 providers
With recent CMS data first, then Aโ€“Z

Dr. Carlos R Abeyta , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
82 Puuhonu Pl, Suite 206, Hilo, HI 967202010
Phone: 8089699888
NPI Identifier 1942253109
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Dr. Wendy Lehua Barnes , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
868 Ululani St, #101, Hilo, HI 96720
Phone: 8089353883
NPI Identifier 1164534806
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Dr. Daniel H. Belcher , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
615 Ponahawai St Ste 101, Hilo, HI 967207665
Phone: 8089339187
NPI Identifier 1144270927
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Dr. Francis Joseph Cavanaugh , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
70 Olona St, Hilo, HI 96720
Phone: 8087314949
NPI Identifier 1033165998
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Dr. Karna Ashitkumar Desai , MD

Internal Medicine

Active NPI Status
1190 Waianuenue Ave, Hilo, HI 967202020
Phone: 8089323000
NPI Identifier 1306535257
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Dr. Alan C Desilva , MD INC

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1248 Kinoole Street, Suite 107, Hilo, HI 967204171
Phone: 8089356888
NPI Identifier 1790885994
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Dr. Douglas Dung Do , MD, MPH

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1190 Waianuenue Ave, Hilo, HI 967202089
Phone: 9254878947
NPI Identifier 1265732622
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Dr. David Allan Jung , MD

Internal Medicine

Active NPI Status
41 Hoku St, Hilo, HI 967203816
Phone: 8089355768
NPI Identifier 1649281643
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Dr. Craig Kadooka , MD

Internal Medicine

Active NPI Status
670 Ponahawai St, Suite 206, Hilo, HI 967202660
Phone: 8089356635
NPI Identifier 1467419630
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Dr. Mouhamed Kannass , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1190 Waianuenue Ave, Hilo, HI 967202020
Phone: 8089342009
NPI Identifier 1316036247
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Dr. Young Rhan Kim , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
868 Ululani St, Suite 109, Hilo, HI 967203913
Phone: 8089353909
NPI Identifier 1336206960
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Dr. Erik Robert Kinoshita , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1190 Waianuenue Ave, Hilo, HI 967202089
Phone: 8089323000
NPI Identifier 1700379351
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Dr. Shelley Kirkham , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1190 Waianuenue Ave, Hilo, HI 967202094
Phone: 8089324215
NPI Identifier 1255960159
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Dr. Tiffany Ma , MD, MPH

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1190 Waianuenue Ave, Hilo, HI 967202089
Phone: 9254870372
NPI Identifier 1053689703
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Dr. Jon V Martell , MD

Internal Medicine

Active NPI Status
1190 Waianuenue Ave, Hilo, HI 967202020
Phone: 8089744700
NPI Identifier 1033165469
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Dr. Aaron Morita , MD, FACP

Internal Medicine

Active NPI Status Accepts Medicare Assignment
670 Ponahawai St, Ste 223, Hilo, HI 967207829
Phone: 8089355411
NPI Identifier 1568405058
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Dr. Thu Nguyen , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
868 Ululani St, Suite 105, Hilo, HI 967203913
Phone: 8089615522
NPI Identifier 1831137447
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Dr. Charles Minoru Okamura , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
670 Ponahawai St Ste 208, Hilo, HI 967207830
Phone: 8089352112
NPI Identifier 1427254192
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Dr. Rodney Tadashi Ono , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1248 Kinoole St, Suite 101, Hilo, HI 967204171
Phone: 8089358398
NPI Identifier 1477626802
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Dr. Mary Ann Santos Pefanco , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
1178b Kinoole St, Hilo, HI 967204133
Phone: 8089691427
NPI Identifier 1780769703
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Frequently Asked Questions about Internal Medicine in Hilo

How do I check a Internal Medicine practitioner's license?

Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the Hawaii licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.

Why is a practitioner missing from this list?

This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.