NPI registry status
Active
2026 NPPES data Emergency Medicine Physician NPI 1376531798 MD
Verify on CMS → Robert Arthur, MD
Emergency Medicine Physician in Indianapolis, Indiana.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 64,398 in Emergency 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
10K
Medicare Part D claims · 713 beneficiaries · Emergency Medicine Physician avg: 352
Generic prescribing
83%
generic claims · 16% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$553.47
18 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
Robert Arthur, MD filed 9,568 Medicare Part D claims in 2023 as a Emergency Medicine Physician in Indianapolis, Indiana, prescribing 83% generic.
- 10K
- Part D claims, 2023
- 83%
- 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.
Robert Arthur, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
9,568 Top 2% higher than 98% 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
✓
Board certification likely (heuristic, not verified)
Robert Arthur, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 3 hospital affiliations - 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 Robert Arthur, MD?
Quality data not reportedPrimary specialty
Emergency Medicine Physician
Medicare Part D claims
9,568 27× vs specialty avg
Specialty distribution in Indiana
How Emergency Medicine Physician compares to other specialties among Indiana 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 Emergency Medicine 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).
Robert Arthur, MD appears in the CMS NPPES registry as a Emergency Medicine Physician provider holding MD credentials at 9650 E WASHINGTON ST, Indianapolis, IN, 46229, with a listed phone of (317) 890-5500. NPI 1376531798 was issued on 10/10/2005.
Medicare Part D records for calendar year 2023 show 9,568 prescription claims written by this provider, covering 713 Medicare beneficiaries and totaling roughly $1.7 million in drug spend, split 16% brand-name and 83% generic by claim count, with an opioid prescribing rate of 1.1%.
Emergency Medicine Physician is a high-volume specialty nationwide, with 64,398 enrolled providers across 56 states and an average of 352 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 | 1376531798 |
|---|---|
| Specialty | Emergency Medicine Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 10/10/2005 |
Hospital and facility affiliations
Facilities where Robert Arthur, MD 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.
According to CMS billing records, Robert Arthur, MD is affiliated with 3 Medicare-billing facilities.
Indiana University Health Care Associates Inc
Indianapolis, IN
IU Health Medical Group LLC
Indianapolis, IN
Witham Memorial Hospital
Zionsville, IN
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 Robert Arthur, MD. Source: openpaymentsdata.cms.gov.
Total received
$553
Largest payer
AstraZeneca Pharmaceuticals LP
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
Robert Arthur, MD - brand share 16.0%
Emergency Medicine Physician average
16% brand-name claims vs 83% generic, on 9,568 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.
9,568
Total Claims
$1.7M
Total Drug Cost
713
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 21,978
- Total Day Supply
- 641,740
- Brand vs Generic
- 16% brand / 83% generic
- Brand Drug Cost
- $1.5M
- Generic Drug Cost
- $168K
- Opioid Claims
- 108 (1.1% rate)
- Antibiotic Claims
- 187
Patient Demographics
- Average Patient Age
- 72.2 years
- Avg HCC Risk Score
- 1.22
- Gender Split
- 58% female / 42% male
- Age Distribution
- <65: 78, 65-74: 356, 75-84: 218, 85+: 61
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Robert Arthur, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
928 claims
- Losartan Potassium
Losartan Potassium
680 claims
- Amlodipine Besylate
Amlodipine Besylate
453 claims
- Rosuvastatin Calcium
Rosuvastatin Calcium
435 claims
- Metoprolol Succinate
Metoprolol Succinate
407 claims
- Farxiga 322
Farxiga
322 claims
- Ezetimibe 249
Ezetimibe
249 claims
- Hydrochlorothiazide 249
Hydrochlorothiazide
249 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 928 |
| Losartan Potassium | 680 |
| Amlodipine Besylate | 453 |
| Rosuvastatin Calcium | 435 |
| Metoprolol Succinate | 407 |
| Farxiga Dapagliflozin Propanediol | 322 |
| Ezetimibe | 249 |
| Hydrochlorothiazide | 249 |
| Omeprazole | 241 |
| Levothyroxine Sodium | 205 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Emergency Medicine Physician Overview
How Robert Arthur, MD fits within the Emergency Medicine Physician landscape nationally.
64,398
Emergency Medicine Physician Providers in US
56
States with Emergency Medicine Physician
352
Avg Claims per Provider
Robert Arthur, MD's 9,568 claims are above the specialty average of 352.
Nearby Emergency Medicine Physician Providers in Indiana
Other clinicians with the same primary specialty enrolled in Indiana, drawn from the same CMS NPPES roster as Arthur.
Dr. Danyelle Aber
M.D.
Fort Wayne, IN
Dr. Jennifer Acciani
M.D.
Indianapolis, IN
Dr. Robert Adams
DO
Paoli, IN
Dr. Chris Adamson
MD
Bedford, IN
Dr. Manisha Agarwala
MD
Carmel, IN
Compare Emergency Medicine Physician 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 Indiana medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Emergency 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 Indiana
Frequently Asked Questions
What is Robert Arthur, MD's specialty? ▼
Robert Arthur, MD specializes in Emergency Medicine Physician and practices in Indianapolis, Indiana. Credentials: MD.
How much does Robert Arthur, MD prescribe under Medicare Part D? ▼
In 2023, Robert Arthur, MD wrote 9,568 Medicare Part D claims totaling $1.7M in drug costs for 713 beneficiaries.
Where is Robert Arthur, MD located? ▼
Robert Arthur, MD is located at 9650 E WASHINGTON ST, Indianapolis, IN, 46229. Phone: (317) 890-5500.
What is Robert Arthur, MD's NPI number? ▼
Robert Arthur, MD's National Provider Identifier (NPI) is 1376531798, issued on 10/10/2005.
Does Robert Arthur, MD prescribe more brand-name or generic drugs? ▼
Robert Arthur, MD's prescribing is 16% brand-name and 83% generic drugs by claim count, with $1.5M in brand drug costs.
Does Robert Arthur, MD prescribe opioids? ▼
Yes, Robert Arthur, MD had 108 opioid claims in 2023 with an opioid prescribing rate of 1.1%.
How many Emergency Medicine Physician providers are there in the US? ▼
There are 64,398 Emergency Medicine Physician providers across 56 states in the US. The average Emergency Medicine Physician provider writes 352 Medicare Part D claims per year.
What drugs does Robert Arthur, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Robert Arthur, MD's most frequently prescribed drugs include Atorvastatin Calcium, Losartan Potassium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Robert Arthur, MD accept Medicare? ▼
Robert Arthur, MD appears in CMS Medicare data with 9,568 Part D claims and 713 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Robert Arthur, MD's credentials? ▼
Robert Arthur, MD's NPI is 1376531798 with credentials MD. 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.