Shayne Mark Castanera, M.D.
Internal Medicine Physician · Aiea, HI
Shayne Mark Castanera, M.D. is an internal medicine physician with a practice address in Aiea, Hawaii, and NPI 1053337469, issued on Jul 15, 2006. Check the license (Hawaii MD6965, as entered in NPPES) on the Hawaii Medical Board; the Medicare figures below come from public CMS files.
- Name
- Shayne Mark Castanera
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD6965 HI
Self-reported in NPPES; status is on the state search - Practice location
- 98-1079 Moanalua RD, Aiea, HI 96701
- Phone
- (808) 486-6000
- Enumerated
- Jul 15, 2006
- Record last updated
- Jul 9, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 07052002 HI
- Medicare enrollment
- Enrolled (PECOS I20060112000301); accepts Medicare assignment
- Medical or professional school
- University Of Hawaii John A. Burns School Of Medicine, 1988
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 902 in Hawaii → Look up another NPI →
Also registered at 98-1079 Moanalua RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Timothy Ahu, MDInternal Medicine Physician1275611204
- Maria Lourdes Akagi, APRNFamily Nurse Practitioner1811600299
- Roderick Alfonso, M.D.Emergency Medicine Physician1417310293
Verify Shayne Mark Castanera in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersHawaii Medical Board
Search for license MD6965Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average internal medicine physician in 2024
277 Medicare Part D claims for 107 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.
Most prescribed
- Metoprolol Succinate19 claims
- Furosemide16 claims
- Jardiance15 claims
- Losartan Potassium15 claims
- Atorvastatin Calcium14 claims
- Cefuroxime14 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.
The MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $27.55
1 payment: food and beverage; the largest payer was Abbvie Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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.
Shayne Mark Castanera among 902 internal medicine physician records in Hawaii
Shayne Mark Castanera, M.D. is one of 902 internal medicine physician records with a practice address in Hawaii. 71% 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 4% of them.
- NPI issued2006 · 4% of these records are older, 55% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 54% of these records are
- Graduated1988 · median 2001 among the 491 with a school on file
- Record last updated2007 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Hawaii practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
36 internal medicine physician records list a practice address in Aiea
They are 36 of the 1,481 NPPES records with a practice address in Aiea, and 902 internal medicine physician records in Hawaii.
All 902 in Hawaii → Every provider in Aiea → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Francis Buto, M.D.Aiea, HI 967011124061189
- Michael Dimitrion, MDAiea, HI 967011508878836
- Alvin Fuse, M.D.Aiea, HI 967011871536011
- Craig Hamasaki, M.D.Aiea, HI 967011003870478
- Ky Le, MDAiea, HI 967011073560025
- Bryan Matsumoto, M.D.Aiea, HI 967011932142072
- Michael Mihara, M.D.Aiea, HI 967011750324919
- Dawn Miura, M.D.Aiea, HI 967011003824160
Common questions
What is Shayne Mark Castanera, M.D.'s NPI number?
Shayne Mark Castanera, M.D.'s National Provider Identifier (NPI) is 1053337469, issued on Jul 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Shayne Mark Castanera, M.D. located?
The NPPES record lists a practice address at 98-1079 Moanalua RD, Aiea, HI, 96701. Phone: (808) 486-6000. Providers update this record themselves, so call before visiting.
How can I verify Shayne Mark Castanera, M.D.'s license?
NPPES lists Hawaii license number MD6965, 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 Shayne Mark Castanera, M.D. prescribe under Medicare Part D?
In 2024, Shayne Mark Castanera, M.D. had 277 Medicare Part D claims for 107 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Shayne Mark Castanera, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.