2026 NPPES data Internal Medicine Physician NPI 1811063761 M.D.
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Vishnu Madireddy, M.D.

Internal Medicine Physician in Riverwoods, Illinois. 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
28K
Medicare Part D claims · 873 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
8.8/100
▼ 74 pts below national avg 83.1 · [object Object]
Industry payments
$15.74
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

Vishnu Madireddy, M.D. reported a CMS MIPS final score of 8.8/100 — below the 83.1 national average — and filed 28,165 Medicare Part D claims in 2023.

8.8/100
MIPS score · -74 vs avg
28K
Part D claims, 2023
88%
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.

Vishnu Madireddy, M.D.'s MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

9 2nd percentile higher than 2% of 477,587 scored providers

0–10: 8,684 scored providers (2%). This entry sits in this band. 10–20: 3,008 scored providers (1%). Above this entry. 20–30: 3,069 scored providers (1%). Above this entry. 30–40: 2,746 scored providers (1%). Above this entry. 40–50: 2,928 scored providers (1%). Above this entry. 50–60: 5,882 scored providers (1%). Above this entry. 60–70: 13,906 scored providers (3%). Above this entry. 70–80: 118,074 scored providers (25%). Above this entry. 80–90: 129,887 scored providers (27%). Above this entry. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

Vishnu Madireddy, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 5 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 Vishnu Madireddy, M.D.?

Below national average

NPI registry status

Active

Issued 11/24/2006

NPI 1811063761

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

28,165 10× vs specialty avg

2023 prescription claims

Specialty avg: 2,716

MIPS final score

8.8/100 74.3 pts vs avg

Penalty band band

vs 83.1 national avg

Specialty distribution in Illinois

How Internal Medicine Physician compares to other specialties among Illinois providers

Illinois providers

Internal Medicine Physician share within Illinois

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

Medicare quality performance — MIPS

Vishnu Madireddy, M.D.'s 2023 MIPS final score plotted against the Internal Medicine Physician national average

Below national average
MIPS Final Score
8.8/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Internal Medicine Physician) — 8.8/100 vs national avg 83.1

0%100%National avg83%8.8%
MIPS final score (Internal Medicine Physician) — 8.8/100 vs national avg 83.1

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).

Vishnu Madireddy, M.D. appears in the CMS NPPES registry as a Internal Medicine Physician provider holding M.D. credentials at 1105 MILWAUKEE AVE, Riverwoods, IL, 60015, with a listed phone of (847) 325-5110. NPI 1811063761 was issued on 11/24/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Madireddy 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 28,165 prescription claims written by this provider, covering 873 Medicare beneficiaries and totaling roughly $2.1 million in drug spend, split 12% brand-name and 88% generic by claim count, with an opioid prescribing rate of 0.1%. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 8.8/100 for the 2023 performance year (Quality 0, Cost 29.4), compared with the national average of 83.1.

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

1105 MILWAUKEE AVE
Riverwoods, IL 60015

Provider Details

NPI 1811063761
Specialty Internal Medicine Physician
Credentials M.D.
Gender Male
NPI Issued 11/24/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

8.8238
Final Score
Avg: 83.1
0
Quality
29.4127
Cost

Reporting: Individual

Hospital and facility affiliations

Facilities where Vishnu Madireddy, 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.

Cogent Healthcare OF Tennessee, PC
Bristol, TN
Hospitalist Medicine Physicians OF Pennsylvania PC
Lansdale, PA
Hospitalist Medicine Physicians OF Texas PLLC
Oklahoma City, OK
Sound Physicians OF Illinois LLC
Rock Island, IL
Tamid Medical Group
Riverwoods, IL

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 Vishnu Madireddy, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$16

Largest payer

GlaxoSmithKline, LLC.

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.

License & disciplinary context — Illinois IDFPR 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~42K Illinois medical licensees in 2023 — they are NOT specific to Vishnu Madireddy, M.D.. To verify Vishnu Madireddy, M.D.'s current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

106
Total board actions, Illinois 2023
Across 103 cases
2.52
Actions per 1,000 licensees
Illinois statewide rate
probation
Most common action type
38 cases

IDFPR publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Illinois disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

Vishnu Madireddy, M.D. — brand share 12.0%
Specialty average (est.)

12% brand-name claims vs 88% generic, on 28,165 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.

28,165
Total Claims
$2.1M
Total Drug Cost
873
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
29,160
Total Day Supply
711,610
Brand vs Generic
12% brand / 88% generic
Brand Drug Cost
$1.4M
Generic Drug Cost
$668K
Opioid Claims
33 (0.1% rate)
Antibiotic Claims
422

Patient Demographics

Average Patient Age
65.8 years
Avg HCC Risk Score
2.26
Gender Split
46% female / 54% male
Age Distribution
<65: 349, 65-74: 290, 75-84: 164, 85+: 70

Top Prescribed Drugs (Medicare Part D)

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

What Vishnu Madireddy, M.D. 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
1,650
Levothyroxine Sodium
957
Amlodipine Besylate
822
Gabapentin
684
Divalproex Sodium
665
Lisinopril
662
Metformin Hcl
622
Metoprolol Tartrate
600
Tamsulosin Hcl
556
Eliquis
Apixaban
506

* 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 Vishnu Madireddy, 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

Vishnu Madireddy, M.D.'s 28,165 claims are above the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Illinois

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

Compare Internal 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 Illinois medical board — federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Internal 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.

Frequently Asked Questions

What is Vishnu Madireddy, M.D.'s specialty?
Vishnu Madireddy, M.D. specializes in Internal Medicine Physician and practices in Riverwoods, Illinois. Credentials: M.D..
How much does Vishnu Madireddy, M.D. prescribe under Medicare Part D?
In 2023, Vishnu Madireddy, M.D. wrote 28,165 Medicare Part D claims totaling $2.1M in drug costs for 873 beneficiaries.
What is Vishnu Madireddy, M.D.'s Medicare quality score?
Vishnu Madireddy, M.D. has a CMS MIPS Final Score of 8.8/100 (Quality: 0, Cost: 29.4). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Vishnu Madireddy, M.D. located?
Vishnu Madireddy, M.D. is located at 1105 MILWAUKEE AVE, Riverwoods, IL, 60015. Phone: (847) 325-5110.
What is Vishnu Madireddy, M.D.'s NPI number?
Vishnu Madireddy, M.D.'s National Provider Identifier (NPI) is 1811063761, issued on 11/24/2006.
Does Vishnu Madireddy, M.D. prescribe more brand-name or generic drugs?
Vishnu Madireddy, M.D.'s prescribing is 12% brand-name and 88% generic drugs by claim count, with $1.4M in brand drug costs.
Does Vishnu Madireddy, M.D. prescribe opioids?
Yes, Vishnu Madireddy, M.D. had 33 opioid claims in 2023 with an opioid prescribing rate of 0.1%.
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 Vishnu Madireddy, M.D. prescribe most often?
Based on 2023 Medicare Part D data, Vishnu Madireddy, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Vishnu Madireddy, M.D. accept Medicare?
Vishnu Madireddy, M.D. appears in CMS Medicare data with 28,165 Part D claims and 873 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Vishnu Madireddy, M.D.'s credentials?
Vishnu Madireddy, M.D.'s NPI is 1811063761 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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