2026 NPPES data Internal Medicine Physician NPI 1326226044 M.D.
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ARUN AGARWAL, M.D.

Internal Medicine Physician in NEW BRITAIN, Connecticut. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
9K
Medicare Part D claims · 1K beneficiaries · Internal Medicine Physician avg: 3K
Industry payments
$3.3K
128 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: ARUN AGARWAL, M.D. is a Internal Medicine Physician ([object Object]) practicing in NEW BRITAIN, Connecticut with a Medicare Part D prescribing footprint of 9K claims across 1K beneficiaries . Industry payments of $3.3K across 128 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: ARUN AGARWAL, M.D. filed 8,894 Medicare Part D claims in 2023 across NEW BRITAIN, Connecticut. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

ARUN AGARWAL, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

ARUN AGARWAL, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 02/05/2008

NPI 1326226044

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

8,894 227% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

Specialty distribution in Connecticut

How Internal Medicine Physician compares to other specialties among Connecticut providers

Connecticut providers

Internal Medicine Physician share within Connecticut

1. Internal Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Internal Medicine Physician share within Connecticut

Specialty board-certification context

Estimated specialty board-certified rate — Internal Medicine Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Internal Medicine Physician ABMS/AOA estimate

Est. board-certified rate (Internal Medicine Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Internal Medicine Physician) — ABMS / AOA estimate

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).

ARUN AGARWAL, M.D. is a Internal Medicine Physician provider practicing in NEW BRITAIN, Connecticut, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1326226044. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

ARUN AGARWAL, M.D. appears in the CMS NPPES registry as a Internal Medicine Physician provider holding M.D. credentials at 1 LAKE ST, NEW BRITAIN, CT, 06052, with a listed phone of (860) 223-0220. NPI 1326226044 was issued on 02/05/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what AGARWAL most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 8,894 prescription claims written by this provider, covering 1,208 Medicare beneficiaries and totaling roughly $2.6 million in drug spend. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 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

1 LAKE ST
NEW BRITAIN, CT 06052

Provider Details

NPI 1326226044
Specialty Internal Medicine Physician
Credentials M.D.
Gender Male
NPI Issued 02/05/2008

Hospital and facility affiliations

Facilities where ARUN AGARWAL, 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.

BRISTOL HOSPITAL MULTI SPECIALTY GROUP, INC.
BRISTOL, CT
STARLING PHYSICIANS, PLLC
NEW BRITAIN, 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 ARUN AGARWAL, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$3.3K

Largest payer

Abbott Laboratories

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.

8,894
Total Claims
$2.6M
Total Drug Cost
1,208
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
22,899
Total Day Supply
683,121
Generic Drug Cost
$229K
Antibiotic Claims
58

Patient Demographics

Average Patient Age
76.7 years
Avg HCC Risk Score
1.72
Gender Split
48% female / 52% male
Age Distribution
<65: 44, 65-74: 473, 75-84: 466, 85+: 225

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Eliquis
Apixaban
1,107
Rosuvastatin Calcium
774
Metoprolol Succinate
639
Atorvastatin Calcium
571
Metoprolol Tartrate
435
Clopidogrel
Clopidogrel Bisulfate
402
Amlodipine Besylate
383
Ezetimibe
340
Torsemide
325
Carvedilol
288

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Internal Medicine Physician Overview

How ARUN AGARWAL, M.D. fits within the Internal Medicine Physician landscape nationally.

172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

ARUN AGARWAL, M.D.'s 8,894 claims are above the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Connecticut

Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as AGARWAL.

Compare Internal Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ARUN AGARWAL, M.D.'s specialty?
ARUN AGARWAL, M.D. specializes in Internal Medicine Physician and practices in NEW BRITAIN, Connecticut. Credentials: M.D..
How much does ARUN AGARWAL, M.D. prescribe under Medicare Part D?
In 2023, ARUN AGARWAL, M.D. wrote 8,894 Medicare Part D claims totaling $2.6M in drug costs for 1,208 beneficiaries.
Where is ARUN AGARWAL, M.D. located?
ARUN AGARWAL, M.D. is located at 1 LAKE ST, NEW BRITAIN, CT, 06052. Phone: (860) 223-0220.
What is ARUN AGARWAL, M.D.'s NPI number?
ARUN AGARWAL, M.D.'s National Provider Identifier (NPI) is 1326226044, issued on 02/05/2008.
How many Internal Medicine Physician providers are there in the US?
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does ARUN AGARWAL, M.D. prescribe most often?
Based on 2023 Medicare Part D data, ARUN AGARWAL, M.D.'s most frequently prescribed drugs include Eliquis, Rosuvastatin Calcium, Metoprolol Succinate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ARUN AGARWAL, M.D. accept Medicare?
ARUN AGARWAL, M.D. appears in CMS Medicare data with 8,894 Part D claims and 1,208 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ARUN AGARWAL, M.D.'s credentials?
ARUN AGARWAL, M.D.'s NPI is 1326226044 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

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