NPI registry status
Active
2026 NPPES data Trauma Surgery Physician NPI 1518449594 PA-C
Verify on CMS → Matthew Yap, PA-C
Trauma Surgery Physician in Honolulu, Hawaii.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,010 in Trauma Surgery Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
48
Medicare Part D claims · 21 beneficiaries · Trauma Surgery Physician avg: 75
What the federal data shows
Matthew Yap, PA-C filed 48 Medicare Part D claims in 2024 as a Trauma Surgery Physician in Honolulu, Hawaii.
- 48
- Part D claims, 2024
- Likely
- board-certified (heuristic)
- ≥0th
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Matthew Yap, PA-C
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1518449594), first enumerated 09/05/2018.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 48 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1518449594 · Trauma Surgery Physician
NPI-10 · ENUM-RECENT · TAX-NARROW · RX-TRACE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1518449594
- ENUM-RECENT 2018
- TAX-NARROW 1,010
- RX-TRACE 48
- BOOK-THIN 4 in Hawaii
- PHOTO-ENUM Joseph Weinberg, MD · 2018
Matthew Yap, PA-C's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
48 ≥ 0th percentile 0% of 1,416,883 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. 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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
✓
Board certification likely (heuristic, not verified)
Matthew Yap, PA-C practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - 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 Matthew Yap, PA-C?
Quality data not reportedPrimary specialty
Trauma Surgery Physician
Medicare Part D claims
48 36% vs specialty avg
Specialty distribution in Hawaii
How Trauma Surgery Physician compares to other specialties among Hawaii providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Trauma Surgery Physician. Verify directly:
How MIPS and board certification work
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).
Practice Address
Provider Details
| NPI | 1518449594 |
|---|---|
| Specialty | Trauma Surgery Physician |
| Credentials | PA-C |
| Gender | Male |
| NPI Issued | 09/05/2018 |
Hospital and facility affiliations
Facilities where Matthew Yap, PA-C bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Queens University Medical Group
Honolulu, HI
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
48
Total Claims
$883
Total Drug Cost
21
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 48
- Total Day Supply
- 478
- Generic Drug Cost
- $330
- Opioid Claims
- 14 (29.2% rate)
Patient Demographics
- Average Patient Age
- 76.6 years
- Avg HCC Risk Score
- 1.33
- Age Distribution
- <65: 0, 65-74: N/A, 75-84: 11, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Oxycodone Hcl | 14 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Trauma Surgery Physician Overview
How Matthew Yap, PA-C fits within the Trauma Surgery Physician landscape nationally.
1,010
Trauma Surgery Physician Providers in US
49
States with Trauma Surgery Physician
75
Avg Claims per Provider
Matthew Yap, PA-C's 48 claims are below the specialty average of 75.
Nationwide Trauma Surgery Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Yap, both outside Hawaii so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2018)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Trauma Surgery Physician Providers in Hawaii
Other clinicians with the same primary specialty enrolled in Hawaii, drawn from the same CMS NPPES roster as Yap.
One of 4 Trauma Surgery Physician providers enrolled in Hawaii, 3 are shown here.
Compare Trauma Surgery Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Matthew Yap, PA-C's specialty? ▼
Matthew Yap, PA-C specializes in Trauma Surgery Physician and practices in Honolulu, Hawaii. Credentials: PA-C.
How much does Matthew Yap, PA-C prescribe under Medicare Part D? ▼
In 2024, Matthew Yap, PA-C wrote 48 Medicare Part D claims totaling $883 in drug costs for 21 beneficiaries.
Where is Matthew Yap, PA-C located? ▼
Matthew Yap, PA-C is located at 1301 PUNCHBOWL ST, Honolulu, HI, 96813. Phone: (808) 691-1000.
What is Matthew Yap, PA-C's NPI number? ▼
Matthew Yap, PA-C's National Provider Identifier (NPI) is 1518449594, issued on 09/05/2018.
Does Matthew Yap, PA-C prescribe opioids? ▼
Yes, Matthew Yap, PA-C had 14 opioid claims in 2024 with an opioid prescribing rate of 29.2%.
How many Trauma Surgery Physician providers are there in the US? ▼
There are 1,010 Trauma Surgery Physician providers across 49 states in the US. The average Trauma Surgery Physician provider writes 75 Medicare Part D claims per year.
What drugs does Matthew Yap, PA-C prescribe most often? ▼
Based on 2024 Medicare Part D data, Matthew Yap, PA-C's most frequently prescribed drugs include Oxycodone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Matthew Yap, PA-C accept Medicare? ▼
Matthew Yap, PA-C appears in CMS Medicare data with 48 Part D claims and 21 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Matthew Yap, PA-C's credentials? ▼
Matthew Yap, PA-C's NPI is 1518449594 with credentials PA-C. 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
View source datasets and methodology notes
- 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 (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- 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 August 2026 (NPPES) / 2024 (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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.