2026 NPPES data Cardiovascular Disease Physician NPI 1144204769 MD
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RATNAKAR RAJANAHALLY, MD

Cardiovascular Disease Physician in MUNSTER, Indiana. 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
3K
Medicare Part D claims · 285 beneficiaries · Cardiovascular Disease Physician avg: 3K
Generic prescribing
90%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$644.87
33 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

RATNAKAR RAJANAHALLY, MD filed 2,650 Medicare Part D claims in 2023 as a Cardiovascular Disease Physician in MUNSTER, Indiana, prescribing 90% generic.

3K
Part D claims, 2023
90%
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.

RATNAKAR RAJANAHALLY, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

2,650 Top 13% higher than 87% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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)

RATNAKAR RAJANAHALLY, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 RATNAKAR RAJANAHALLY, MD?

Quality data not reported

NPI registry status

Active

Issued 12/06/2005

NPI 1144204769

Primary specialty

Cardiovascular Disease Physician

Mid-sized

24,795 US NPIs in this specialty

Medicare Part D claims

2,650 13% vs specialty avg

2023 prescription claims

Specialty avg: 3,033

Specialty distribution in Indiana

How Cardiovascular Disease Physician compares to other specialties among Indiana providers

Indiana providers

Cardiovascular Disease Physician share within Indiana

1. Cardiovascular Disease Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Cardiovascular Disease Physician share within Indiana

Specialty board-certification context

Estimated specialty board-certified rate — Cardiovascular Disease Physician (ABMS / AOA reference)

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

Est. board-certified rate (Cardiovascular Disease Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Cardiovascular Disease 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).

RATNAKAR RAJANAHALLY, MD appears in the CMS NPPES registry as a Cardiovascular Disease Physician provider holding MD credentials at 701 SUPERIOR AVE STE 4100, MUNSTER, IN, 46321, with a listed phone of (219) 934-4080. NPI 1144204769 was issued on 12/06/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what RAJANAHALLY 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 2,650 prescription claims written by this provider, covering 285 Medicare beneficiaries and totaling roughly $355K in drug spend, split 10% brand-name and 90% generic by claim count. 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.

Cardiovascular Disease Physician is a mid-sized specialty nationwide, with 24,795 enrolled providers across 54 states and an average of 3,033 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

701 SUPERIOR AVE STE 4100
MUNSTER, IN 46321

Provider Details

NPI 1144204769
Specialty Cardiovascular Disease Physician
Credentials MD
Gender Male
NPI Issued 12/06/2005

Hospital and facility affiliations

Facilities where RATNAKAR RAJANAHALLY, 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.

FRANCISCAN PHYSICIAN NETWORK
MUNSTER, 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 RATNAKAR RAJANAHALLY, MD. Source: openpaymentsdata.cms.gov.

Total received

$645

Largest payer

Medtronic, Inc.

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

RATNAKAR RAJANAHALLY, MD — brand share 10.0%
Specialty average (est.)

10% brand-name claims vs 90% generic, on 2,650 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.

2,650
Total Claims
$355K
Total Drug Cost
285
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
7,250
Total Day Supply
216,660
Brand vs Generic
10% brand / 90% generic
Brand Drug Cost
$294K
Generic Drug Cost
$61K

Patient Demographics

Average Patient Age
75.1 years
Avg HCC Risk Score
1.36
Gender Split
49% female / 51% male
Age Distribution
<65: 15, 65-74: 132, 75-84: 98, 85+: 40

Top Prescribed Drugs (Medicare Part D)

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

What RATNAKAR RAJANAHALLY, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Atorvastatin Calcium
325
Carvedilol
283
Rosuvastatin Calcium
215
Clopidogrel
Clopidogrel Bisulfate
209
Amlodipine Besylate
189
Metoprolol Succinate
184
Ezetimibe
131
Eliquis
Apixaban
104
Losartan Potassium
103
Lisinopril
100

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

Cardiovascular Disease Physician Overview

How RATNAKAR RAJANAHALLY, MD fits within the Cardiovascular Disease Physician landscape nationally.

24,795
Cardiovascular Disease Physician Providers in US
54
States with Cardiovascular Disease Physician
3,033
Avg Claims per Provider

RATNAKAR RAJANAHALLY, MD's 2,650 claims are below the specialty average of 3,033.

Nearby Cardiovascular Disease Physician Providers in Indiana

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

Compare Cardiovascular Disease Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is RATNAKAR RAJANAHALLY, MD's specialty?
RATNAKAR RAJANAHALLY, MD specializes in Cardiovascular Disease Physician and practices in MUNSTER, Indiana. Credentials: MD.
How much does RATNAKAR RAJANAHALLY, MD prescribe under Medicare Part D?
In 2023, RATNAKAR RAJANAHALLY, MD wrote 2,650 Medicare Part D claims totaling $355K in drug costs for 285 beneficiaries.
Where is RATNAKAR RAJANAHALLY, MD located?
RATNAKAR RAJANAHALLY, MD is located at 701 SUPERIOR AVE STE 4100, MUNSTER, IN, 46321. Phone: (219) 934-4080.
What is RATNAKAR RAJANAHALLY, MD's NPI number?
RATNAKAR RAJANAHALLY, MD's National Provider Identifier (NPI) is 1144204769, issued on 12/06/2005.
Does RATNAKAR RAJANAHALLY, MD prescribe more brand-name or generic drugs?
RATNAKAR RAJANAHALLY, MD's prescribing is 10% brand-name and 90% generic drugs by claim count, with $294K in brand drug costs.
How many Cardiovascular Disease Physician providers are there in the US?
There are 24,795 Cardiovascular Disease Physician providers across 54 states in the US. The average Cardiovascular Disease Physician provider writes 3,033 Medicare Part D claims per year.
What drugs does RATNAKAR RAJANAHALLY, MD prescribe most often?
Based on 2023 Medicare Part D data, RATNAKAR RAJANAHALLY, MD's most frequently prescribed drugs include Atorvastatin Calcium, Carvedilol, Rosuvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does RATNAKAR RAJANAHALLY, MD accept Medicare?
RATNAKAR RAJANAHALLY, MD appears in CMS Medicare data with 2,650 Part D claims and 285 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify RATNAKAR RAJANAHALLY, MD's credentials?
RATNAKAR RAJANAHALLY, MD's NPI is 1144204769 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

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