2026 NPPES data Cardiovascular Disease Physician NPI 1538315221 M.D
Verify on CMS →

LAKSHMI MUTHUKUMAR, M.D

Cardiovascular Disease Physician in MILWAUKEE, Wisconsin. 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
55
Medicare Part D claims · 17 beneficiaries · Cardiovascular Disease Physician avg: 3K
Industry payments
$1.8K
14 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

LAKSHMI MUTHUKUMAR, M.D filed 55 Medicare Part D claims in 2023 as a Cardiovascular Disease Physician in MILWAUKEE, Wisconsin.

55
Part D claims, 2023
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.

LAKSHMI MUTHUKUMAR, M.D's Medicare Part D volume vs every U.S. prescriber

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

55 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. 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)

LAKSHMI MUTHUKUMAR, 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).

What does the federal data show about LAKSHMI MUTHUKUMAR, M.D?

Quality data not reported

NPI registry status

Active

Issued 08/13/2008

NPI 1538315221

Primary specialty

Cardiovascular Disease Physician

Mid-sized

24,795 US NPIs in this specialty

Medicare Part D claims

55 98% vs specialty avg

2023 prescription claims

Specialty avg: 3,033

Specialty distribution in Wisconsin

How Cardiovascular Disease Physician compares to other specialties among Wisconsin providers

Wisconsin providers

Cardiovascular Disease Physician share within Wisconsin

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

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).

LAKSHMI MUTHUKUMAR, M.D appears in the CMS NPPES registry as a Cardiovascular Disease Physician provider holding M.D credentials at 2801 W KINNICKINNIC RIVER PKWY, MILWAUKEE, WI, 53215, with a listed phone of (414) 649-3626. NPI 1538315221 was issued on 08/13/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MUTHUKUMAR 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 55 prescription claims written by this provider, covering 17 Medicare beneficiaries and totaling roughly $9K 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.

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

2801 W KINNICKINNIC RIVER PKWY
MILWAUKEE, WI 53215

Provider Details

NPI 1538315221
Specialty Cardiovascular Disease Physician
Credentials M.D
Gender Female
NPI Issued 08/13/2008

Hospital and facility affiliations

Facilities where LAKSHMI MUTHUKUMAR, 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.

POTOMAC VALLEY HOSPITAL OF W VA , INC
KEYSER, WV
WEST VIRGINIA UNIVERSITY MEDICAL CORPORATION
MORGANTOWN, WV

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 LAKSHMI MUTHUKUMAR, M.D. Source: openpaymentsdata.cms.gov.

Total received

$1.8K

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.

55
Total Claims
$9K
Total Drug Cost
17
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
121
Total Day Supply
3,574
Generic Drug Cost
$2K

Patient Demographics

Average Patient Age
70.2 years
Avg HCC Risk Score
1.45

Cardiovascular Disease Physician Overview

How LAKSHMI MUTHUKUMAR, M.D 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

LAKSHMI MUTHUKUMAR, M.D's 55 claims are below the specialty average of 3,033.

Nearby Cardiovascular Disease Physician Providers in Wisconsin

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

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

Frequently Asked Questions

What is LAKSHMI MUTHUKUMAR, M.D's specialty?
LAKSHMI MUTHUKUMAR, M.D specializes in Cardiovascular Disease Physician and practices in MILWAUKEE, Wisconsin. Credentials: M.D.
How much does LAKSHMI MUTHUKUMAR, M.D prescribe under Medicare Part D?
In 2023, LAKSHMI MUTHUKUMAR, M.D wrote 55 Medicare Part D claims totaling $9K in drug costs for 17 beneficiaries.
Where is LAKSHMI MUTHUKUMAR, M.D located?
LAKSHMI MUTHUKUMAR, M.D is located at 2801 W KINNICKINNIC RIVER PKWY, MILWAUKEE, WI, 53215. Phone: (414) 649-3626.
What is LAKSHMI MUTHUKUMAR, M.D's NPI number?
LAKSHMI MUTHUKUMAR, M.D's National Provider Identifier (NPI) is 1538315221, issued on 08/13/2008.
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.
Does LAKSHMI MUTHUKUMAR, M.D accept Medicare?
LAKSHMI MUTHUKUMAR, M.D appears in CMS Medicare data with 55 Part D claims and 17 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify LAKSHMI MUTHUKUMAR, M.D's credentials?
LAKSHMI MUTHUKUMAR, M.D's NPI is 1538315221 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