NPI registry status
Active
2026 NPPES data Critical Care Medicine (Internal Medicine) Physician NPI 1720185978 M.D.
Verify on CMS → Louis Arno, M.D.
Critical Care Medicine (Internal Medicine) Physician in Branchburg, New Jersey.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 6,646 in Critical Care Medicine (Internal Medicine) 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
2K
Medicare Part D claims · 253 beneficiaries · Critical Care Medicine (Internal Medicine) Physician avg: 1K
Generic prescribing
33%
generic claims · 67% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
80.5/100
▼ 3 pts below national avg 83.1 · Above neutral
Industry payments
$1.5K
76 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
Louis Arno, M.D. reported a CMS MIPS final score of 80.5/100 - below the 83.1 national average - and filed 1,692 Medicare Part D claims in 2023.
- 80.5/100
- MIPS score · -3 vs avg
- 2K
- Part D claims, 2023
- 33%
- generic prescribing
- 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.
Louis Arno, 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
81 33rd percentile higher than 33% 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 Louis Arno, M.D. sits
This provider among critical care medicine (internal medicine) physician peers
Across the 1,643 critical care medicine (internal medicine) physician providers who report both Medicare Part D prescribing and a MIPS quality score, Louis Arno, M.D. writes more Part D claims than 74% of them and scores higher on MIPS quality than 33% - placing this provider in the high-volume, lower-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 critical care medicine (internal medicine) physician peer from a representative sample of 60; the gold marker is Louis Arno, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Louis Arno, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 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 Louis Arno, M.D.?
Near national averagePrimary specialty
Critical Care Medicine (Internal Medicine) Physician
Medicare Part D claims
1,692 58% vs specialty avg
MIPS final score
80.5/100 2.6 pts vs avg
Specialty distribution in New Jersey
How Critical Care Medicine (Internal Medicine) Physician compares to other specialties among New Jersey providers
Medicare quality performance, MIPS
Louis Arno, M.D.'s 2023 MIPS final score plotted against the Critical Care Medicine (Internal Medicine) Physician national average
- MIPS Final Score
- 80.5/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Critical Care Medicine (Internal Medicine) Physician) - 80.5/100 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).
Louis Arno, M.D. appears in the CMS NPPES registry as a Critical Care Medicine (Internal Medicine) Physician provider holding M.D. credentials at 3322 ROUTE 22 STE 605, Branchburg, NJ, 08876, with a listed phone of (908) 428-7530. NPI 1720185978 was issued on 09/20/2006.
Medicare Part D records for calendar year 2023 show 1,692 prescription claims written by this provider, covering 253 Medicare beneficiaries and totaling roughly $1.2 million in drug spend, split 67% brand-name and 33% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 80.5/100 for the 2023 performance year (Quality 82.9, Cost 52.1), compared with the national average of 83.1.
Critical Care Medicine (Internal Medicine) Physician is a mid-sized specialty nationwide, with 6,646 enrolled providers across 53 states and an average of 1,069 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 | 1720185978 |
|---|---|
| Specialty | Critical Care Medicine (Internal Medicine) Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 09/20/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
80.4858
Final Score
Avg: 83.1
82.8605
Quality
52.092
Cost
100
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Louis Arno, M.D. 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.
Hunterdon Specialty Care PC
Flemington, NJ
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 Louis Arno, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$1.5K
Largest payer
GlaxoSmithKline, LLC.
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 · Brand-heavy
Louis Arno, M.D. - brand share 67.0%
Critical Care Medicine (Internal Medicine) Physician average
67% brand-name claims vs 33% generic, on 1,692 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.
1,692
Total Claims
$1.2M
Total Drug Cost
253
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,306
- Total Day Supply
- 63,650
- Brand vs Generic
- 67% brand / 33% generic
- Brand Drug Cost
- $1.2M
- Generic Drug Cost
- $20K
- Antibiotic Claims
- 89
Patient Demographics
- Average Patient Age
- 76.4 years
- Avg HCC Risk Score
- 1.47
- Gender Split
- 60% female / 40% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Louis Arno, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Trelegy Ellipta
Trelegy Ellipta
385 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
246 claims
- Anoro Ellipta
Anoro Ellipta
170 claims
- Breo Ellipta 134
Breo Ellipta
134 claims
- Prednisone 121
Prednisone
121 claims
- Montelukast Sodium 117
Montelukast Sodium
117 claims
- Symbicort 45
Symbicort
45 claims
- Breztri Aerosphere 44
Breztri Aerosphere
44 claims
| Drug | Claims |
|---|---|
| Trelegy Ellipta Fluticasone/Umeclidin/Vilanter | 385 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 246 |
| Anoro Ellipta Umeclidinium Brm/Vilanterol Tr | 170 |
| Breo Ellipta Fluticasone/Vilanterol | 134 |
| Prednisone | 121 |
| Montelukast Sodium | 117 |
| Symbicort Budesonide/Formoterol Fumarate | 45 |
| Breztri Aerosphere Budesonide/Glycopyr/Formoterol | 44 |
| Azithromycin | 37 |
| Levofloxacin | 34 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Critical Care Medicine (Internal Medicine) Physician in NJ →
All providers in New Jersey →
Compare specialties →
Critical Care Medicine (Internal Medicine) Physician Overview
How Louis Arno, M.D. fits within the Critical Care Medicine (Internal Medicine) Physician landscape nationally.
6,646
Critical Care Medicine (Internal Medicine) Physician Providers in US
53
States with Critical Care Medicine (Internal Medicine) Physician
1,069
Avg Claims per Provider
Louis Arno, M.D.'s 1,692 claims are above the specialty average of 1,069.
Nearby Critical Care Medicine (Internal Medicine) Physician Providers in New Jersey
Other clinicians with the same primary specialty enrolled in New Jersey, drawn from the same CMS NPPES roster as Arno.
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 New Jersey medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Critical Care Medicine (Internal Medicine) Physician 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.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore New Jersey
Frequently Asked Questions
What is Louis Arno, M.D.'s specialty? ▼
Louis Arno, M.D. specializes in Critical Care Medicine (Internal Medicine) Physician and practices in Branchburg, New Jersey. Credentials: M.D..
How much does Louis Arno, M.D. prescribe under Medicare Part D? ▼
In 2023, Louis Arno, M.D. wrote 1,692 Medicare Part D claims totaling $1.2M in drug costs for 253 beneficiaries.
What is Louis Arno, M.D.'s Medicare quality score? ▼
Louis Arno, M.D. has a CMS MIPS Final Score of 80.5/100 (Quality: 82.9, Cost: 52.1). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Louis Arno, M.D. located? ▼
Louis Arno, M.D. is located at 3322 ROUTE 22 STE 605, Branchburg, NJ, 08876. Phone: (908) 428-7530.
What is Louis Arno, M.D.'s NPI number? ▼
Louis Arno, M.D.'s National Provider Identifier (NPI) is 1720185978, issued on 09/20/2006.
Does Louis Arno, M.D. prescribe more brand-name or generic drugs? ▼
Louis Arno, M.D.'s prescribing is 67% brand-name and 33% generic drugs by claim count, with $1.2M in brand drug costs.
How many Critical Care Medicine (Internal Medicine) Physician providers are there in the US? ▼
There are 6,646 Critical Care Medicine (Internal Medicine) Physician providers across 53 states in the US. The average Critical Care Medicine (Internal Medicine) Physician provider writes 1,069 Medicare Part D claims per year.
What drugs does Louis Arno, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Louis Arno, M.D.'s most frequently prescribed drugs include Trelegy Ellipta, Albuterol Sulfate Hfa, Anoro Ellipta. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Louis Arno, M.D. accept Medicare? ▼
Louis Arno, M.D. appears in CMS Medicare data with 1,692 Part D claims and 253 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Louis Arno, M.D.'s credentials? ▼
Louis Arno, M.D.'s NPI is 1720185978 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
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.