Roy Koga, M.D.
Family Medicine Physician · Hilo, HI
Roy Koga, M.D. is a family medicine physician with a practice address in Hilo, Hawaii, and NPI 1164511309, issued on Oct 12, 2006. Check the license (Hawaii MD2816, as entered in NPPES) on the Hawaii Medical Board; the Medicare figures below come from public CMS files.
- Name
- Roy Koga
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- MD2816 HI
Self-reported in NPPES; status is on the state search - Practice location
- 670 Ponahawai St Ste 120, Hilo, HI 96720
- Phone
- (808) 961-2673
- Enumerated
- Oct 12, 2006
- Record last updated
- Sep 1, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (808) 961-3051
- Medicaid ID
- 037014-02 HI
- Medicare enrollment
- Enrolled (PECOS I20110201000786); accepts Medicare assignment
- Medical or professional school
- University Of Washington School Of Medicine, 1973
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 730 in Hawaii → Look up another NPI →
Verify Roy Koga in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersHawaii Medical Board
Search for license MD2816Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% more Medicare Part D claims than the average family medicine physician in 2024
5,928 Medicare Part D claims for 409 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims. 240 claims were for opioids.
Most prescribed
- Atorvastatin Calcium342 claims
- Amlodipine Besylate264 claims
- Farxiga254 claims
- Losartan Potassium247 claims
- Rosuvastatin Calcium237 claims
- Metformin Hcl178 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $1,668.54
55 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Roy Koga among 730 family medicine physician records in Hawaii
Roy Koga, M.D. is one of 730 family medicine physician records with a practice address in Hawaii. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 58% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated1973 · median 2006 among the 383 with a school on file
- Record last updated2010 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Hawaii practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
58 family medicine physician records list a practice address in Hilo
They are 58 of the 1,758 NPPES records with a practice address in Hilo, and 730 family medicine physician records in Hawaii.
All 730 in Hawaii → Every provider in Hilo → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Alice Adee, MDHilo, HI 967201376638734
- Wilfred Alik, MDHilo, HI 967201366542060
- Susan Cauley, M.D.Hilo, HI 967201881701076
- Lynda Dolan, M.D.Hilo, HI 967201548207319
- Charles Dundas, M.D.Hilo, HI 967201285647826
- Edwin Etcubanez, MDHilo, HI 967201679555866
- Sheareen Gedayloo, M.D.Hilo, HI 967201801840525
- Lily Gillespie, MDHilo, HI 967201649370412
Common questions
What is Roy Koga, M.D.'s NPI number?
Roy Koga, M.D.'s National Provider Identifier (NPI) is 1164511309, issued on Oct 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Roy Koga, M.D. located?
The NPPES record lists a practice address at 670 Ponahawai St Ste 120, Hilo, HI, 96720. Phone: (808) 961-2673. Providers update this record themselves, so call before visiting.
How can I verify Roy Koga, M.D.'s license?
NPPES lists Hawaii license number MD2816, as entered by the provider. Search the Hawaii Medical Board at https://cca.hawaii.gov/pvl/boards/medical/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Roy Koga, M.D. prescribe under Medicare Part D?
In 2024, Roy Koga, M.D. had 5,928 Medicare Part D claims for 409 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.