NPI registry status
Active
2026 NPPES data Surgery of the Hand (Plastic Surgery) Physician NPI 1366448128 M.D.
Verify on CMS → Ramasamy Kalimuthu, M.D.
Surgery of the Hand (Plastic Surgery) Physician in Oak Lawn, Illinois.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 372 in Surgery of the Hand (Plastic Surgery) Physician, 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
115
Medicare Part D claims · 47 beneficiaries · Surgery of the Hand (Plastic Surgery) Physician avg: 106
What the federal data shows
Ramasamy Kalimuthu, M.D. filed 115 Medicare Part D claims in 2023 as a Surgery of the Hand (Plastic Surgery) Physician in Oak Lawn, Illinois.
- 115
- Part D claims, 2023
- ≥35th
- pct by Part D claim volume (lower-bound band)
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.
CMS NPPES provider registry desk
NPI 1366448128 · Surgery of the Hand (Plastic Surgery) Physician
NPI-10 · ENUM-LEGACY · TAX-TRACE · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1366448128
- ENUM-LEGACY 2005
- TAX-TRACE 372
- RX-LIGHT 115
- BOOK-THIN 17 in Illinois
- PHOTO-ENUM Marjorie Bush · 2005
Ramasamy Kalimuthu, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
115 ≥ 35th percentile 35% of 1,370,886 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2023
◑
Board-eligible specialty (heuristic, not verified)
Ramasamy Kalimuthu, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Ramasamy Kalimuthu, M.D.?
Quality data not reportedPrimary specialty
Surgery of the Hand (Plastic Surgery) Physician
Medicare Part D claims
115 8% vs specialty avg
Specialty distribution in Illinois
How Surgery of the Hand (Plastic Surgery) Physician compares to other specialties among Illinois 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 Surgery of the Hand (Plastic Surgery) Physician. 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).
Practice Address
Provider Details
| NPI | 1366448128 |
|---|---|
| Specialty | Surgery of the Hand (Plastic Surgery) Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 06/24/2005 |
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 Ramasamy Kalimuthu, M.D.. To verify Ramasamy Kalimuthu, 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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
115
Total Claims
$2K
Total Drug Cost
47
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 131
- Total Day Supply
- 1,607
- Generic Drug Cost
- $2K
- Opioid Claims
- 29 (25.2% rate)
- Antibiotic Claims
- 55
Patient Demographics
- Average Patient Age
- 76.1 years
- Avg HCC Risk Score
- 1.12
- Gender Split
- 47% female / 53% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Cephalexin | 41 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 24 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Surgery of the Hand (Plastic Surgery) Physician in IL →
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Surgery of the Hand (Plastic Surgery) Physician Overview
How Ramasamy Kalimuthu, M.D. fits within the Surgery of the Hand (Plastic Surgery) Physician landscape nationally.
372
Surgery of the Hand (Plastic Surgery) Physician Providers in US
43
States with Surgery of the Hand (Plastic Surgery) Physician
106
Avg Claims per Provider
Ramasamy Kalimuthu, M.D.'s 115 claims are above the specialty average of 106.
Nationwide Surgery of the Hand (Plastic Surgery) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Kalimuthu, both outside Illinois so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2005)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Surgery of the Hand (Plastic Surgery) Physician Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Kalimuthu.
One of 17 Surgery of the Hand (Plastic Surgery) Physician providers enrolled in Illinois, 5 are shown here.
Frequently Asked Questions
What is Ramasamy Kalimuthu, M.D.'s specialty? ▼
Ramasamy Kalimuthu, M.D. specializes in Surgery of the Hand (Plastic Surgery) Physician and practices in Oak Lawn, Illinois. Credentials: M.D..
How much does Ramasamy Kalimuthu, M.D. prescribe under Medicare Part D? ▼
In 2023, Ramasamy Kalimuthu, M.D. wrote 115 Medicare Part D claims totaling $2K in drug costs for 47 beneficiaries.
Where is Ramasamy Kalimuthu, M.D. located? ▼
Ramasamy Kalimuthu, M.D. is located at 5346 W 95TH ST, Oak Lawn, IL, 60453. Phone: (708) 636-8222.
What is Ramasamy Kalimuthu, M.D.'s NPI number? ▼
Ramasamy Kalimuthu, M.D.'s National Provider Identifier (NPI) is 1366448128, issued on 06/24/2005.
Does Ramasamy Kalimuthu, M.D. prescribe opioids? ▼
Yes, Ramasamy Kalimuthu, M.D. had 29 opioid claims in 2023 with an opioid prescribing rate of 25.2%.
How many Surgery of the Hand (Plastic Surgery) Physician providers are there in the US? ▼
There are 372 Surgery of the Hand (Plastic Surgery) Physician providers across 43 states in the US. The average Surgery of the Hand (Plastic Surgery) Physician provider writes 106 Medicare Part D claims per year.
What drugs does Ramasamy Kalimuthu, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Ramasamy Kalimuthu, M.D.'s most frequently prescribed drugs include Cephalexin, Hydrocodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ramasamy Kalimuthu, M.D. accept Medicare? ▼
Ramasamy Kalimuthu, M.D. appears in CMS Medicare data with 115 Part D claims and 47 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ramasamy Kalimuthu, M.D.'s credentials? ▼
Ramasamy Kalimuthu, M.D.'s NPI is 1366448128 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
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
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.