2026 NPPES data Orthopaedic Surgery Physician NPI 1194776880 M.D.
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CALVIN OISHI, M.D.

Orthopaedic Surgery Physician in AIEA, Hawaii. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
862
Medicare Part D claims · 424 beneficiaries · Orthopaedic Surgery Physician avg: 324
MIPS score
94.1828/100
▲ 11 pts above national avg 83.1 · [object Object]
Industry payments
$25.88
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

CALVIN OISHI, M.D. reported a CMS MIPS final score of 94.1828/100 — above the 83.1 national average — and filed 862 Medicare Part D claims in 2023.

94.1828/100
MIPS score · +11 vs avg
862
Part D claims, 2023
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

CALVIN OISHI, M.D.'s MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

94 Top 25% higher than 75% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

CALVIN OISHI, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about CALVIN OISHI, M.D.?

High performer (top quartile)

NPI registry status

Active

Issued 05/15/2006

NPI 1194776880

Primary specialty

Orthopaedic Surgery Physician

Mid-sized

25,781 US NPIs in this specialty

Medicare Part D claims

862 166% vs specialty avg

2023 prescription claims

Specialty avg: 324

MIPS final score

94.1828/100 11.082800000000006% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Hawaii

How Orthopaedic Surgery Physician compares to other specialties among Hawaii providers

Hawaii providers

Orthopaedic Surgery Physician share within Hawaii

1. Orthopaedic Surgery Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Orthopaedic Surgery Physician share within Hawaii

Medicare quality performance — MIPS

CALVIN OISHI, M.D.'s 2023 MIPS final score plotted against the Orthopaedic Surgery Physician national average

High performer (top quartile)
MIPS Final Score
94.1828/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Orthopaedic Surgery Physician) — 94.1828/100 vs national avg 83.1

0%100%National avg83%94.2%
MIPS final score (Orthopaedic Surgery Physician) — 94.1828/100 vs national avg 83.1

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

CALVIN OISHI, M.D. appears in the CMS NPPES registry as a Orthopaedic Surgery Physician provider holding M.D. credentials at 98-1247 KAAHUMANU STREET, AIEA, HI, 96701, with a listed phone of (808) 484-2042. NPI 1194776880 was issued on 05/15/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what OISHI most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 862 prescription claims written by this provider, covering 424 Medicare beneficiaries and totaling roughly $10K in drug spend, with an opioid prescribing rate of 23.9%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 94.1828/100 for the 2023 performance year (Quality 84.2876), compared with the national average of 83.1.

Orthopaedic Surgery Physician is a mid-sized specialty nationwide, with 25,781 enrolled providers across 56 states and an average of 324 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

98-1247 KAAHUMANU STREET
AIEA, HI 96701

Provider Details

NPI 1194776880
Specialty Orthopaedic Surgery Physician
Credentials M.D.
Gender Male
NPI Issued 05/15/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

94.1828
Final Score
Avg: 83.1
84.2876
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for CALVIN OISHI, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$26

Largest payer

Smith+Nephew, Inc.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

862
Total Claims
$10K
Total Drug Cost
424
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
879
Total Day Supply
13,391
Brand Drug Cost
$0
Generic Drug Cost
$10K
Opioid Claims
206 (23.9% rate)
Antibiotic Claims
252

Patient Demographics

Average Patient Age
74.2 years
Avg HCC Risk Score
1.09
Gender Split
62% female / 38% male
Age Distribution
<65: 20, 65-74: 212, 75-84: 148, 85+: 44

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What CALVIN OISHI, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Amoxicillin
154
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
144
Meloxicam
135
Ondansetron Hcl
113
Celecoxib
72
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
48
Tramadol Hcl
37
Ibuprofen
28
Clindamycin Hcl
24
Gabapentin
18

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Orthopaedic Surgery Physician Overview

How CALVIN OISHI, M.D. fits within the Orthopaedic Surgery Physician landscape nationally.

25,781
Orthopaedic Surgery Physician Providers in US
56
States with Orthopaedic Surgery Physician
324
Avg Claims per Provider

CALVIN OISHI, M.D.'s 862 claims are above the specialty average of 324.

Nearby Orthopaedic Surgery Physician Providers in Hawaii

Other clinicians with the same primary specialty enrolled in Hawaii, drawn from the same CMS NPPES roster as OISHI.

Compare Orthopaedic Surgery Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is CALVIN OISHI, M.D.'s specialty?
CALVIN OISHI, M.D. specializes in Orthopaedic Surgery Physician and practices in AIEA, Hawaii. Credentials: M.D..
How much does CALVIN OISHI, M.D. prescribe under Medicare Part D?
In 2023, CALVIN OISHI, M.D. wrote 862 Medicare Part D claims totaling $10K in drug costs for 424 beneficiaries.
What is CALVIN OISHI, M.D.'s Medicare quality score?
CALVIN OISHI, M.D. has a CMS MIPS Final Score of 94.1828/100 (Quality: 84.2876). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is CALVIN OISHI, M.D. located?
CALVIN OISHI, M.D. is located at 98-1247 KAAHUMANU STREET, AIEA, HI, 96701. Phone: (808) 484-2042.
What is CALVIN OISHI, M.D.'s NPI number?
CALVIN OISHI, M.D.'s National Provider Identifier (NPI) is 1194776880, issued on 05/15/2006.
Does CALVIN OISHI, M.D. prescribe opioids?
Yes, CALVIN OISHI, M.D. had 206 opioid claims in 2023 with an opioid prescribing rate of 23.9%.
How many Orthopaedic Surgery Physician providers are there in the US?
There are 25,781 Orthopaedic Surgery Physician providers across 56 states in the US. The average Orthopaedic Surgery Physician provider writes 324 Medicare Part D claims per year.
What drugs does CALVIN OISHI, M.D. prescribe most often?
Based on 2023 Medicare Part D data, CALVIN OISHI, M.D.'s most frequently prescribed drugs include Amoxicillin, Oxycodone-Acetaminophen, Meloxicam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CALVIN OISHI, M.D. accept Medicare?
CALVIN OISHI, M.D. appears in CMS Medicare data with 862 Part D claims and 424 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CALVIN OISHI, M.D.'s credentials?
CALVIN OISHI, M.D.'s NPI is 1194776880 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology