Calvin S. Oishi, M.D.
Orthopaedic Surgery Physician · Aiea, HI
Calvin S. Oishi, M.D. is an orthopaedic surgery physician with a practice address in Aiea, Hawaii, and NPI 1194776880, issued on May 15, 2006. Check the license (Hawaii MD7926, as entered in NPPES) on the Hawaii Medical Board; the Medicare figures below come from public CMS files.
- Name
- Calvin S. Oishi
- Credential
- M.D.
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- MD7926 HI
Self-reported in NPPES; status is on the state search - Practice location
- 98-1247 Kaahumanu Street, Aiea, HI 96701
- Phone
- (808) 484-2042
- Enumerated
- May 15, 2006
- Record last updated
- Sep 25, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (808) 487-8324
- Medicaid IDs
- 03655203 HI
03655204 HI - Medicare enrollment
- Enrolled (PECOS I20101108001142); accepts Medicare assignment
- Medical or professional school
- University Of California, San Diego School Of Medicine, 1987
- Entity
- Type 1 · individual
Also registered at 98-1247 Kaahumanu Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Craig Hamasaki, M.D.Internal Medicine Physician1003870478
- Cynthia Quinn, MFTMarriage & Family Therapist1528109329
Verify Calvin S. Oishi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersHawaii Medical Board
Search for license MD7926Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.7 times the Medicare Part D claims of the average orthopaedic surgery physician in 2024
937 Medicare Part D claims for 434 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. 248 claims were for opioids.
Most prescribed
- Amoxicillin165 claims
- Oxycodone-Acetaminophen152 claims
- Ondansetron Hcl144 claims
- Meloxicam119 claims
- Tramadol Hcl80 claims
- Celecoxib53 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): 94.2 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: $25.88
1 payment: food and beverage; the largest payer was Smith+Nephew, Inc. The 15,003 providers of this specialty with any payment received $23,022.89 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.
Orthopaedic Surgery Physician providers in Hawaii
There are 107 orthopaedic surgery physician records in Hawaii.
Other orthopaedic surgery physician records in Hawaii
- Ashley Aratani, M.D.Aiea, HI1578909743
- Nicolas Artz, MDHonolulu, HI1396502472
- Darin Awaya, MDHonolulu, HI1477544633
- Warren Ayers, MDWailuku, HI1750460804
- Wade Banta, MDHonolulu, HI1053994871
- Anthony Barcia, M.D.Honolulu, HI1043447949
- Stuart BaumgardMaunaloa, HI1346433950
- Timothy Berney, M.D.Wailuku, HI1548239239
- Brandee Black, M.D.Kailua, HI1477864429
- Barry Blum, MDKailua Kona, HI1295839595
Common questions
What is Calvin S. Oishi, M.D.'s NPI number?
Calvin S. Oishi, M.D.'s National Provider Identifier (NPI) is 1194776880, issued on May 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Calvin S. Oishi, M.D. located?
The NPPES record lists a practice address at 98-1247 Kaahumanu Street, Aiea, HI, 96701. Phone: (808) 484-2042. Providers update this record themselves, so call before visiting.
How can I verify Calvin S. Oishi, M.D.'s license?
NPPES lists Hawaii license number MD7926, 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 Calvin S. Oishi, M.D. prescribe under Medicare Part D?
In 2024, Calvin S. Oishi, M.D. had 937 Medicare Part D claims for 434 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. Part D covers Medicare prescriptions only.
What is Calvin S. Oishi, M.D.'s MIPS final score?
The 2023 MIPS final score is 94.2 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.