NPI registry status
Active
2026 NPPES data Medical Physician Assistant NPI 1326309113 PA-C
Verify on CMS → Megan Irwin, PA-C
Medical Physician Assistant in Mount Vernon, Washington.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 40,694 in Medical Physician Assistant, 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
2K
Medicare Part D claims · 226 beneficiaries · Medical Physician Assistant avg: 1K
Industry payments
$104.58
6 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Megan Irwin, PA-C filed 1,812 Medicare Part D claims in 2024 as a Medical Physician Assistant in Mount Vernon, Washington.
- 2K
- Part D claims, 2024
- $104.58
- industry payments (Sunshine Act)
- ≥83rd
- 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 Megan Irwin, 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 1326309113), first enumerated 06/07/2012.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 1,812 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$104.58 in reported industry payments (6 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- State context
State board disciplinary context
Washington statewide board action statistics are published annually — these figures describe aggregate state activity, not Megan Irwin, PA-C's individual license status. Verify directly with the state medical board.
Source: WMC annual report 2023
- 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 1326309113 · Medical Physician Assistant
NPI-10 · ENUM-MID · TAX-MID · RX-MID · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1326309113
- ENUM-MID 2012
- TAX-MID 41K Medical Physician
- RX-MID 1,812
- BOOK-LIGHT 1,148 in Washington
- PHOTO-ENUM Jignesh Patel, PA · 2012
Megan Irwin, PA-C's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
1,812 ≥ 83rd percentile 83% 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
What does the federal data show about Megan Irwin, PA-C?
Quality data not reportedPrimary specialty
Medical Physician Assistant
Medicare Part D claims
1,812 59% vs specialty avg
Specialty distribution in Washington
How Medical Physician Assistant compares to other specialties among Washington 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 Medical Physician Assistant. 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 | 1326309113 |
|---|---|
| Specialty | Medical Physician Assistant |
| Credentials | PA-C |
| Gender | Female |
| NPI Issued | 06/07/2012 |
Hospital and facility affiliations
Facilities where Megan Irwin, 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.
Public Hospital Dist NO 1 Skagit
Mount Vernon, WA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 Megan Irwin, PA-C. Source: openpaymentsdata.cms.gov.
Total received
$105
Largest payer
ABBVIE 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.
License & disciplinary context - Washington WMC 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~34K Washington medical licensees in 2023 - they are NOT specific to Megan Irwin, PA-C. To verify Megan Irwin, PA-C's current license status, search the WMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
88
Total board actions, Washington 2023
Across 85 cases
2.59
Actions per 1,000 licensees
Washington statewide rate
probation
Most common action type
31 cases
WMC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Washington disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
1,812
Total Claims
$1.8M
Total Drug Cost
226
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 3,842.733
- Total Day Supply
- 113,683
- Generic Drug Cost
- $40K
- Opioid Claims
- 50 (2.8% rate)
Patient Demographics
- Average Patient Age
- 72.2 years
- Avg HCC Risk Score
- 1.49
- Gender Split
- 66% female / 34% male
- Age Distribution
- <65: 27, 65-74: 117, 75-84: 63, 85+: 19
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Megan Irwin, PA-C prescribes most
Top Medicare Part D drugs by claim count, 2024
- Methotrexate
Methotrexate
230 claims
- Hydroxychloroquine…
Hydroxychloroquine Sulfate
224 claims
- Leflunomide
Leflunomide
177 claims
- Prednisone
Prednisone
159 claims
- Sulfasalazine
Sulfasalazine
126 claims
- Allopurinol
Allopurinol
93 claims
- Gabapentin 72
Gabapentin
72 claims
- Alendronate Sodium 52
Alendronate Sodium
52 claims
| Drug | Claims |
|---|---|
| Methotrexate Methotrexate Sodium | 230 |
| Hydroxychloroquine Sulfate | 224 |
| Leflunomide | 177 |
| Prednisone | 159 |
| Sulfasalazine | 126 |
| Allopurinol | 93 |
| Gabapentin | 72 |
| Alendronate Sodium | 52 |
| Meloxicam | 50 |
| Folic Acid | 41 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Medical Physician Assistant Overview
How Megan Irwin, PA-C fits within the Medical Physician Assistant landscape nationally.
40,694
Medical Physician Assistant Providers in US
55
States with Medical Physician Assistant
1,139
Avg Claims per Provider
Megan Irwin, PA-C's 1,812 claims are above the specialty average of 1,139.
Nationwide Medical Physician Assistant peers with similar MIPS or enrollment year
Two federal-record peer sets for Irwin, both outside Washington so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2012)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Medical Physician Assistant Providers in Washington
Other clinicians with the same primary specialty enrolled in Washington, drawn from the same CMS NPPES roster as Irwin.
One of 1,148 Medical Physician Assistant providers enrolled in Washington, 5 are shown here.
Noor Aaf
PA-C
Seattle, WA
Maryan Abdirahman
Olympia, WA
Elizabeth Abecassis
PA-C
Puyallup, WA
Angelnetta Adams
Seattle, WA
Nadima Adi
PA-C
Kennewick, WA
Compare Medical Physician Assistant nationally: see state-by-state distribution →
Frequently Asked Questions
What is Megan Irwin, PA-C's specialty? ▼
Megan Irwin, PA-C specializes in Medical Physician Assistant and practices in Mount Vernon, Washington. Credentials: PA-C.
How much does Megan Irwin, PA-C prescribe under Medicare Part D? ▼
In 2024, Megan Irwin, PA-C wrote 1,812 Medicare Part D claims totaling $1.8M in drug costs for 226 beneficiaries.
Where is Megan Irwin, PA-C located? ▼
Megan Irwin, PA-C is located at 2320 FREEWAY DR, Mount Vernon, WA, 98273. Phone: (360) 428-2550.
What is Megan Irwin, PA-C's NPI number? ▼
Megan Irwin, PA-C's National Provider Identifier (NPI) is 1326309113, issued on 06/07/2012.
Does Megan Irwin, PA-C prescribe opioids? ▼
Yes, Megan Irwin, PA-C had 50 opioid claims in 2024 with an opioid prescribing rate of 2.8%.
How many Medical Physician Assistant providers are there in the US? ▼
There are 40,694 Medical Physician Assistant providers across 55 states in the US. The average Medical Physician Assistant provider writes 1,139 Medicare Part D claims per year.
What drugs does Megan Irwin, PA-C prescribe most often? ▼
Based on 2024 Medicare Part D data, Megan Irwin, PA-C's most frequently prescribed drugs include Methotrexate, Hydroxychloroquine Sulfate, Leflunomide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Megan Irwin, PA-C accept Medicare? ▼
Megan Irwin, PA-C appears in CMS Medicare data with 1,812 Part D claims and 226 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Megan Irwin, PA-C's credentials? ▼
Megan Irwin, PA-C's NPI is 1326309113 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.