Royal Gary Johnson, M.D.
Geriatric Medicine (Internal Medicine) Physician · Hilo, HI
Royal Gary Johnson, M.D. is a geriatric medicine (internal medicine) physician with a practice address in Hilo, Hawaii, and NPI 1659446037, issued on Nov 21, 2006. Check the license (Hawaii MD-6183, as entered in NPPES) on the Hawaii Medical Board; the Medicare figures below come from public CMS files.
- Name
- Royal Gary Johnson
- Credential
- M.D.
- Primary taxonomy
- Geriatric Medicine (Internal Medicine) Physician 207RG0300X
- License number
- MD-6183 HI
Self-reported in NPPES; status is on the state search - Practice location
- 944 W Kawailani St, Hilo, HI 96720
- Phone
- (808) 959-9151
- Enumerated
- Nov 21, 2006
- Record last updated
- Dec 21, 2022
- Fax
- (808) 522-4345
- Medicaid ID
- 059564 01 HI
- Medicare enrollment
- Enrolled (PECOS I20100724000008); accepts Medicare assignment
- Medical or professional school
- Brody School Of Medicine At East Carolina University, 1985
- Entity
- Type 1 · individual
Also registered at 944 W Kawailani St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Caroline Colburn, OTROccupational Therapist1679707392
- Francis DelacruzPhysical Therapist1609071851
- Julianne Gensler, OTRLOccupational Therapist1659575421
- Caitlin HirataOccupational Therapist1851261077
- Lance Honda, OTOccupational Therapist1255535027
- Brooke Johnson, OTOccupational Therapist1962905620
Verify Royal Gary Johnson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersHawaii Medical Board
Search for license MD-6183Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.1 times the Medicare Part D claims of the average geriatric medicine (internal medicine) physician in 2024
8,961 Medicare Part D claims for 283 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims. 460 claims were for opioids.
Most prescribed
- Citalopram Hbr533 claims
- Furosemide412 claims
- Gabapentin365 claims
- Lorazepam355 claims
- Escitalopram Oxalate303 claims
- Trazodone Hcl271 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: $29.47
1 payment: food and beverage; the largest payer was Neurocrine Biosciences, Inc. The 1,004 providers of this specialty with any payment received $1,720.82 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.
Bills Medicare through one group practice
- Life Care Physician Services LLCHilo, HI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Geriatric Medicine (Internal Medicine) Physician providers in Hawaii
There are 50 geriatric medicine (internal medicine) physician records in Hawaii.
Other geriatric medicine (internal medicine) physician records in Hawaii
- Samina Ahsan, M.D.Honolulu, HI1316137045
- David Andrew, M.D.Honolulu, HI1174960728
- Brita Aramaki, M.D., M.P.H.Honolulu, HI1063707420
- Andrea Barrack, MDKapolei, HI1194832386
- Jessica Barry, M.D.Honolulu, HI1285832527
- Jeffrey Bergsman, MDKailua Kona, HI1083664064
- John Buzanoski, M.D.Honolulu, HI1407873037
- Michael Carethers, MDHonolulu, HI1831179316
- Peter Chan, M.D.Kaunakakai, HI1174905152
- Jennifer Chen, M.D.Honolulu, HI1609014877
Common questions
What is Royal Gary Johnson, M.D.'s NPI number?
Royal Gary Johnson, M.D.'s National Provider Identifier (NPI) is 1659446037, issued on Nov 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Royal Gary Johnson, M.D. located?
The NPPES record lists a practice address at 944 W Kawailani St, Hilo, HI, 96720. Phone: (808) 959-9151. Providers update this record themselves, so call before visiting.
How can I verify Royal Gary Johnson, M.D.'s license?
NPPES lists Hawaii license number MD-6183, 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 Royal Gary Johnson, M.D. prescribe under Medicare Part D?
In 2024, Royal Gary Johnson, M.D. had 8,961 Medicare Part D claims for 283 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. 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.