NPI registry status
Active
2026 NPPES data Medical Physician Assistant NPI 1386189223
Verify on CMS → James Mullen
Medical Physician Assistant in Newtown, 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
522
Medicare Part D claims · 166 beneficiaries · Medical Physician Assistant avg: 1K
Generic prescribing
84%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$39.85
2 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
James Mullen filed 522 Medicare Part D claims in 2023 as a Medical Physician Assistant in Newtown, Connecticut, prescribing 84% generic.
- 522
- Part D claims, 2023
- 84%
- generic prescribing
- $39.85
- 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.
James Mullen's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
522 Top 34% higher than 66% of 1,370,886 prescribers
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.
Source CMS Medicare Part D Prescriber Public Use File · 2023
What does the federal data show about James Mullen?
Quality data not reportedPrimary specialty
Medical Physician Assistant
Medicare Part D claims
522 52% vs specialty avg
Specialty distribution in Connecticut
How Medical Physician Assistant compares to other specialties among Connecticut 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).
James Mullen appears in the CMS NPPES registry as a Medical Physician Assistant provider at 164 MOUNT PLEASANT RD STE 202, Newtown, CT, 06470, with a listed phone of (203) 270-1016. NPI 1386189223 was issued on 01/02/2017.
Medicare Part D records for calendar year 2023 show 522 prescription claims written by this provider, covering 166 Medicare beneficiaries and totaling roughly $64K in drug spend, split 14% brand-name and 84% generic by claim count.
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 | 1386189223 |
|---|---|
| Specialty | Medical Physician Assistant |
| Gender | Male |
| NPI Issued | 01/02/2017 |
Hospital and facility affiliations
Facilities where James Mullen 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.
Prohealth Physicians PC
Winsted, 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 James Mullen. Source: openpaymentsdata.cms.gov.
Total received
$40
Largest payer
Boston Scientific Corporation
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.
Brand vs generic prescribing mix · Typical
James Mullen - brand share 14.0%
Medical Physician Assistant average
14% brand-name claims vs 84% generic, on 522 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
522
Total Claims
$64K
Total Drug Cost
166
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,215
- Total Day Supply
- 34,560
- Brand vs Generic
- 14% brand / 84% generic
- Brand Drug Cost
- $54K
- Generic Drug Cost
- $9K
- Antibiotic Claims
- 40
Patient Demographics
- Average Patient Age
- 72.8 years
- Avg HCC Risk Score
- 1.26
- Gender Split
- 60% female / 40% male
- Age Distribution
- <65: 14, 65-74: 83, 75-84: 58, 85+: 11
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What James Mullen prescribes most
Top Medicare Part D drugs by claim count, 2023
- Levothyroxine Sodium
Levothyroxine Sodium
37 claims
- Amlodipine Besylate
Amlodipine Besylate
29 claims
- Lisinopril
Lisinopril
28 claims
- Rosuvastatin Calcium
Rosuvastatin Calcium
28 claims
- Atorvastatin Calcium
Atorvastatin Calcium
25 claims
- Metoprolol Succinate 12
Metoprolol Succinate
12 claims
- Simvastatin 12
Simvastatin
12 claims
| Drug | Claims |
|---|---|
| Levothyroxine Sodium | 37 |
| Amlodipine Besylate | 29 |
| Lisinopril | 28 |
| Rosuvastatin Calcium | 28 |
| Atorvastatin Calcium | 25 |
| Metoprolol Succinate | 12 |
| Simvastatin | 12 |
* 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 James Mullen 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
James Mullen's 522 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 Mullen.
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 James Mullen's specialty? ▼
James Mullen specializes in Medical Physician Assistant and practices in Newtown, Connecticut.
How much does James Mullen prescribe under Medicare Part D? ▼
In 2023, James Mullen wrote 522 Medicare Part D claims totaling $64K in drug costs for 166 beneficiaries.
Where is James Mullen located? ▼
James Mullen is located at 164 MOUNT PLEASANT RD STE 202, Newtown, CT, 06470. Phone: (203) 270-1016.
What is James Mullen's NPI number? ▼
James Mullen's National Provider Identifier (NPI) is 1386189223, issued on 01/02/2017.
Does James Mullen prescribe more brand-name or generic drugs? ▼
James Mullen's prescribing is 14% brand-name and 84% generic drugs by claim count, with $54K in brand drug costs.
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.
What drugs does James Mullen prescribe most often? ▼
Based on 2023 Medicare Part D data, James Mullen's most frequently prescribed drugs include Levothyroxine Sodium, Amlodipine Besylate, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does James Mullen accept Medicare? ▼
James Mullen appears in CMS Medicare data with 522 Part D claims and 166 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify James Mullen's credentials? ▼
James Mullen's NPI is 1386189223. 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.
- 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.