NPI registry status
Active
2026 NPPES data Medical Physician Assistant NPI 1932180460 PA
Verify on CMS → Mark Whelan, PA
Medical Physician Assistant in Hamden, Connecticut.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 40,580 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
46
Medicare Part D claims · 18 beneficiaries · Medical Physician Assistant avg: 1K
MIPS score
94.2/100
▲ 11 pts above national avg 83.1 · Exceptional
Industry payments
$436.44
10 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Mark Whelan, PA reported a CMS MIPS final score of 94.2/100 - above the 83.1 national average - and filed 46 Medicare Part D claims in 2023.
- 94.2/100
- MIPS score · +11 vs avg
- 46
- Part D claims, 2023
- $436.44
- industry payments (Sunshine Act)
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.
Mark Whelan, PA'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
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
Where Mark Whelan, PA sits
This provider among medical physician assistant peers
Across the 7,339 medical physician assistant providers who report both Medicare Part D prescribing and a MIPS quality score, Mark Whelan, PA writes more Part D claims than 9% of them and scores higher on MIPS quality than 74% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one medical physician assistant peer from a representative sample of 60; the gold marker is Mark Whelan, PA. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Mark Whelan, PA?
High performer (top quartile)Primary specialty
Medical Physician Assistant
Medicare Part D claims
46 96% vs specialty avg
MIPS final score
94.2/100 11.1 pts vs avg
Specialty distribution in Connecticut
How Medical Physician Assistant compares to other specialties among Connecticut providers
Medicare quality performance, MIPS
Mark Whelan, PA's 2023 MIPS final score plotted against the Medical Physician Assistant national average
- MIPS Final Score
- 94.2/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Medical Physician Assistant) - 94.2/100 vs national avg 83.1
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).
Mark Whelan, PA appears in the CMS NPPES registry as a Medical Physician Assistant provider holding PA credentials at 2200 WHITNEY AVE, Hamden, CT, 06518, with a listed phone of (203) 407-2500. NPI 1932180460 was issued on 11/10/2005.
Medicare Part D records for calendar year 2023 show 46 prescription claims written by this provider, covering 18 Medicare beneficiaries and totaling roughly $466 in drug spend. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 94.2/100 for the 2023 performance year (Quality 81.9), compared with the national average of 83.1.
Medical Physician Assistant is a mid-sized specialty nationwide, with 40,580 enrolled providers across 55 states and an average of 1,077 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
Provider Details
| NPI | 1932180460 |
|---|---|
| Specialty | Medical Physician Assistant |
| Credentials | PA |
| Gender | Male |
| NPI Issued | 11/10/2005 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
94.1777
Final Score
Avg: 83.1
81.9442
Quality
99.3986
Promoting Interoperability
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where Mark Whelan, PA 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.
Heartcare Associates OF Connecticut, LLC
Hamden, CT
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 Mark Whelan, PA. Source: openpaymentsdata.cms.gov.
Total received
$436
Largest payer
Novo Nordisk 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.
46
Total Claims
$466
Total Drug Cost
18
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 132
- Total Day Supply
- 3,960
- Brand Drug Cost
- $0
- Generic Drug Cost
- $466
Patient Demographics
- Average Patient Age
- 72.4 years
- Avg HCC Risk Score
- 1.52
Medical Physician Assistant Overview
How Mark Whelan, PA fits within the Medical Physician Assistant landscape nationally.
40,580
Medical Physician Assistant Providers in US
55
States with Medical Physician Assistant
1,077
Avg Claims per Provider
Mark Whelan, PA's 46 claims are below the specialty average of 1,077.
Nearby Medical Physician Assistant Providers in Connecticut
Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as Whelan.
Dr. Shiza Abbas
PA-C
Norwich, CT
Shalima Abdalla
Waterbury, CT
Dr. Samantha Abraham
PA-C
New Britain, CT
Dr. Elaine Accorsini
P.A.
Norwalk, CT
Dr. Allison Adajian
PA-C
Hartford, CT
Compare Medical Physician Assistant nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Connecticut medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Medical Physician Assistant peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Mark Whelan, PA's specialty? ▼
Mark Whelan, PA specializes in Medical Physician Assistant and practices in Hamden, Connecticut. Credentials: PA.
How much does Mark Whelan, PA prescribe under Medicare Part D? ▼
In 2023, Mark Whelan, PA wrote 46 Medicare Part D claims totaling $466 in drug costs for 18 beneficiaries.
What is Mark Whelan, PA's Medicare quality score? ▼
Mark Whelan, PA has a CMS MIPS Final Score of 94.2/100 (Quality: 81.9). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Mark Whelan, PA located? ▼
Mark Whelan, PA is located at 2200 WHITNEY AVE, Hamden, CT, 06518. Phone: (203) 407-2500.
What is Mark Whelan, PA's NPI number? ▼
Mark Whelan, PA's National Provider Identifier (NPI) is 1932180460, issued on 11/10/2005.
How many Medical Physician Assistant providers are there in the US? ▼
There are 40,580 Medical Physician Assistant providers across 55 states in the US. The average Medical Physician Assistant provider writes 1,077 Medicare Part D claims per year.
Does Mark Whelan, PA accept Medicare? ▼
Mark Whelan, PA appears in CMS Medicare data with 46 Part D claims and 18 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mark Whelan, PA's credentials? ▼
Mark Whelan, PA's NPI is 1932180460 with credentials PA. 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 (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
Compiled from official public sources by the PlainDoctor editorial team.
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 May 2026.