NPI registry status
Active
2026 NPPES data Specialist NPI 1912971029 MD
Verify on CMS → Aria Arrizabalaga, MD
Specialist 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 69,608 in Specialist, 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
1K
Medicare Part D claims · 104 beneficiaries · Specialist avg: 1K
Generic prescribing
72%
generic claims · 25% brand-name · higher generic rates reduce patient out-of-pocket costs
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
Aria Arrizabalaga, MD filed 1,141 Medicare Part D claims in 2023 as a Specialist in Indianapolis, Indiana, prescribing 72% generic.
- 1K
- Part D claims, 2023
- 72%
- generic prescribing
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.
Aria Arrizabalaga, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,141 Top 23% higher than 77% 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 Aria Arrizabalaga, MD?
Quality data not reportedPrimary specialty
Specialist
Medicare Part D claims
1,141 23% vs specialty avg
Specialty distribution in Indiana
How Specialist 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 Specialist. 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).
Aria Arrizabalaga, MD appears in the CMS NPPES registry as a Specialist provider holding MD credentials at 10122 E. 10TH STREET, Indianapolis, IN, 46229, with a listed phone of (317) 355-5717. NPI 1912971029 was issued on 02/15/2006.
Medicare Part D records for calendar year 2023 show 1,141 prescription claims written by this provider, covering 104 Medicare beneficiaries and totaling roughly $288K in drug spend, split 25% brand-name and 72% generic by claim count.
Specialist is a high-volume specialty nationwide, with 69,608 enrolled providers across 55 states and an average of 1,474 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 | 1912971029 |
|---|---|
| Specialty | Specialist |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 02/15/2006 |
Hospital and facility affiliations
Facilities where Aria Arrizabalaga, 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.
Community Physicians OF Indiana Inc
Indianapolis, 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).
Brand vs generic prescribing mix · Above average
Aria Arrizabalaga, MD - brand share 25.0%
Specialist average
25% brand-name claims vs 72% generic, on 1,141 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.
1,141
Total Claims
$288K
Total Drug Cost
104
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,431
- Total Day Supply
- 70,307
- Brand vs Generic
- 25% brand / 72% generic
- Brand Drug Cost
- $266K
- Generic Drug Cost
- $20K
- Antibiotic Claims
- 15
Patient Demographics
- Average Patient Age
- 67.5 years
- Avg HCC Risk Score
- 1.98
- Gender Split
- 67% female / 33% male
- Age Distribution
- <65: 34, 65-74: 46, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Aria Arrizabalaga, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
91 claims
- Ozempic
Ozempic
50 claims
- Losartan Potassium
Losartan Potassium
47 claims
- Amlodipine Besylate
Amlodipine Besylate
41 claims
- Metformin Hcl
Metformin Hcl
41 claims
- Lisinopril
Lisinopril
37 claims
- Symbicort 34
Symbicort
34 claims
- Metformin Hcl Er 29
Metformin Hcl Er
29 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 91 |
| Ozempic Semaglutide | 50 |
| Losartan Potassium | 47 |
| Amlodipine Besylate | 41 |
| Metformin Hcl | 41 |
| Lisinopril | 37 |
| Symbicort Budesonide/Formoterol Fumarate | 34 |
| Metformin Hcl Er Metformin Hcl | 29 |
| Montelukast Sodium | 28 |
| Shingrix Varicella-Zoster Ge/As01b/Pf | 28 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Specialist Overview
How Aria Arrizabalaga, MD fits within the Specialist landscape nationally.
69,608
Specialist Providers in US
55
States with Specialist
1,474
Avg Claims per Provider
Aria Arrizabalaga, MD's 1,141 claims are below the specialty average of 1,474.
Nearby Specialist Providers in Indiana
Other clinicians with the same primary specialty enrolled in Indiana, drawn from the same CMS NPPES roster as Arrizabalaga.
Lydia Abad
Indianapolis, IN
Dr. Subrie Abedallhadi
M.D.
Anderson, IN
Dr. Wahbi Adad
M.D.
Highland, IN
Dr. Fareed Ahmad
M.B.,B.S.
Indianapolis, IN
Dr. Daniel Akin
MD
New Albany, IN
Compare Specialist 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 Specialist 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
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Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
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How insurance networks affect your costs
Telehealth Guide
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Explore Indiana
Frequently Asked Questions
What is Aria Arrizabalaga, MD's specialty? ▼
Aria Arrizabalaga, MD specializes in Specialist and practices in Indianapolis, Indiana. Credentials: MD.
How much does Aria Arrizabalaga, MD prescribe under Medicare Part D? ▼
In 2023, Aria Arrizabalaga, MD wrote 1,141 Medicare Part D claims totaling $288K in drug costs for 104 beneficiaries.
Where is Aria Arrizabalaga, MD located? ▼
Aria Arrizabalaga, MD is located at 10122 E. 10TH STREET, Indianapolis, IN, 46229. Phone: (317) 355-5717.
What is Aria Arrizabalaga, MD's NPI number? ▼
Aria Arrizabalaga, MD's National Provider Identifier (NPI) is 1912971029, issued on 02/15/2006.
Does Aria Arrizabalaga, MD prescribe more brand-name or generic drugs? ▼
Aria Arrizabalaga, MD's prescribing is 25% brand-name and 72% generic drugs by claim count, with $266K in brand drug costs.
How many Specialist providers are there in the US? ▼
There are 69,608 Specialist providers across 55 states in the US. The average Specialist provider writes 1,474 Medicare Part D claims per year.
What drugs does Aria Arrizabalaga, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Aria Arrizabalaga, MD's most frequently prescribed drugs include Atorvastatin Calcium, Ozempic, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Aria Arrizabalaga, MD accept Medicare? ▼
Aria Arrizabalaga, MD appears in CMS Medicare data with 1,141 Part D claims and 104 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Aria Arrizabalaga, MD's credentials? ▼
Aria Arrizabalaga, MD's NPI is 1912971029 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.
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.