2026 NPPES data Endocrinology, Diabetes & Metabolism Physician NPI 1467577940 M.D.
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MUTHULAKSHMI RAMALINGAM, M.D.

Endocrinology, Diabetes & Metabolism Physician in LAWRENCEVILLE, New Jersey. 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
1K
Medicare Part D claims · 182 beneficiaries · Endocrinology, Diabetes & Metabolism Physician avg: 3K
Generic prescribing
90%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
95.7781/100
▲ 13 pts above national avg 83.1 · [object Object]

What the federal data shows

MUTHULAKSHMI RAMALINGAM, M.D. reported a CMS MIPS final score of 95.7781/100 — above the 83.1 national average — and filed 1,345 Medicare Part D claims in 2023.

95.7781/100
MIPS score · +13 vs avg
1K
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.

MUTHULAKSHMI RAMALINGAM, 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

96 Top 21% higher than 79% of 477,587 scored providers

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

MUTHULAKSHMI RAMALINGAM, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting — 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 MUTHULAKSHMI RAMALINGAM, M.D.?

High performer (top quartile)

NPI registry status

Active

Issued 03/21/2007

NPI 1467577940

Primary specialty

Endocrinology, Diabetes & Metabolism Physician

Mid-sized

7,852 US NPIs in this specialty

Medicare Part D claims

1,345 49% vs specialty avg

2023 prescription claims

Specialty avg: 2,639

MIPS final score

95.7781/100 12.6781% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in New Jersey

How Endocrinology, Diabetes & Metabolism Physician compares to other specialties among New Jersey providers

New Jersey providers

Endocrinology, Diabetes & Metabolism Physician share within New Jersey

1. Endocrinology, Diabetes & Metabolism Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Endocrinology, Diabetes & Metabolism Physician share within New Jersey

Medicare quality performance — MIPS

MUTHULAKSHMI RAMALINGAM, M.D.'s 2023 MIPS final score plotted against the Endocrinology, Diabetes & Metabolism Physician national average

High performer (top quartile)
MIPS Final Score
95.7781/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Endocrinology, Diabetes & Metabolism Physician) — 95.7781/100 vs national avg 83.1

0%100%National avg83%95.8%
MIPS final score (Endocrinology, Diabetes & Metabolism Physician) — 95.7781/100 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).

MUTHULAKSHMI RAMALINGAM, M.D. appears in the CMS NPPES registry as a Endocrinology, Diabetes & Metabolism Physician provider holding M.D. credentials at 133 FRANKLIN CORNER RD, LAWRENCEVILLE, NJ, 08648, with a listed phone of (609) 815-7270. NPI 1467577940 was issued on 03/21/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what RAMALINGAM 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 1,345 prescription claims written by this provider, covering 182 Medicare beneficiaries and totaling roughly $126K 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 95.7781/100 for the 2023 performance year (Quality 76.7588), compared with the national average of 83.1.

Endocrinology, Diabetes & Metabolism Physician is a mid-sized specialty nationwide, with 7,852 enrolled providers across 54 states and an average of 2,639 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

133 FRANKLIN CORNER RD
LAWRENCEVILLE, NJ 08648

Provider Details

NPI 1467577940
Specialty Endocrinology, Diabetes & Metabolism Physician
Credentials M.D.
Gender Female
NPI Issued 03/21/2007

CMS Quality Score (MIPS)

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

95.7781
Final Score
Avg: 83.1
76.7588
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Brand vs generic prescribing mix · Typical

MUTHULAKSHMI RAMALINGAM, M.D. — brand share 10.0%
Specialty average (est.)

10% brand-name claims vs 90% generic, on 1,345 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.

1,345
Total Claims
$126K
Total Drug Cost
182
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,063
Total Day Supply
87,860
Brand vs Generic
10% brand / 90% generic
Brand Drug Cost
$93K
Generic Drug Cost
$32K
Antibiotic Claims
96

Patient Demographics

Average Patient Age
73.3 years
Avg HCC Risk Score
1.11
Gender Split
64% female / 36% male
Age Distribution
<65: 13, 65-74: 89, 75-84: 64, 85+: 16

Top Prescribed Drugs (Medicare Part D)

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

What MUTHULAKSHMI RAMALINGAM, 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
Amlodipine Besylate
154
Atorvastatin Calcium
131
Metoprolol Succinate
57
Metformin Hcl Er
Metformin Hcl
56
Losartan Potassium
54
Albuterol Sulfate Hfa
Albuterol Sulfate
50
Azithromycin
50
Rosuvastatin Calcium
48
Simvastatin
39
Carvedilol
34

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

Endocrinology, Diabetes & Metabolism Physician Overview

How MUTHULAKSHMI RAMALINGAM, M.D. fits within the Endocrinology, Diabetes & Metabolism Physician landscape nationally.

7,852
Endocrinology, Diabetes & Metabolism Physician Providers in US
54
States with Endocrinology, Diabetes & Metabolism Physician
2,639
Avg Claims per Provider

MUTHULAKSHMI RAMALINGAM, M.D.'s 1,345 claims are below the specialty average of 2,639.

Nearby Endocrinology, Diabetes & Metabolism Physician Providers in New Jersey

Other clinicians with the same primary specialty enrolled in New Jersey, drawn from the same CMS NPPES roster as RAMALINGAM.

Compare Endocrinology, Diabetes & Metabolism Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MUTHULAKSHMI RAMALINGAM, M.D.'s specialty?
MUTHULAKSHMI RAMALINGAM, M.D. specializes in Endocrinology, Diabetes & Metabolism Physician and practices in LAWRENCEVILLE, New Jersey. Credentials: M.D..
How much does MUTHULAKSHMI RAMALINGAM, M.D. prescribe under Medicare Part D?
In 2023, MUTHULAKSHMI RAMALINGAM, M.D. wrote 1,345 Medicare Part D claims totaling $126K in drug costs for 182 beneficiaries.
What is MUTHULAKSHMI RAMALINGAM, M.D.'s Medicare quality score?
MUTHULAKSHMI RAMALINGAM, M.D. has a CMS MIPS Final Score of 95.7781/100 (Quality: 76.7588). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is MUTHULAKSHMI RAMALINGAM, M.D. located?
MUTHULAKSHMI RAMALINGAM, M.D. is located at 133 FRANKLIN CORNER RD, LAWRENCEVILLE, NJ, 08648. Phone: (609) 815-7270.
What is MUTHULAKSHMI RAMALINGAM, M.D.'s NPI number?
MUTHULAKSHMI RAMALINGAM, M.D.'s National Provider Identifier (NPI) is 1467577940, issued on 03/21/2007.
Does MUTHULAKSHMI RAMALINGAM, M.D. prescribe more brand-name or generic drugs?
MUTHULAKSHMI RAMALINGAM, M.D.'s prescribing is 10% brand-name and 90% generic drugs by claim count, with $93K in brand drug costs.
How many Endocrinology, Diabetes & Metabolism Physician providers are there in the US?
There are 7,852 Endocrinology, Diabetes & Metabolism Physician providers across 54 states in the US. The average Endocrinology, Diabetes & Metabolism Physician provider writes 2,639 Medicare Part D claims per year.
What drugs does MUTHULAKSHMI RAMALINGAM, M.D. prescribe most often?
Based on 2023 Medicare Part D data, MUTHULAKSHMI RAMALINGAM, M.D.'s most frequently prescribed drugs include Amlodipine Besylate, Atorvastatin Calcium, Metoprolol Succinate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MUTHULAKSHMI RAMALINGAM, M.D. accept Medicare?
MUTHULAKSHMI RAMALINGAM, M.D. appears in CMS Medicare data with 1,345 Part D claims and 182 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MUTHULAKSHMI RAMALINGAM, M.D.'s credentials?
MUTHULAKSHMI RAMALINGAM, M.D.'s NPI is 1467577940 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