NPPES file of Aug 9, 2026

Mangaiyarkkarasi Sivakumar, MD MS

Endocrinology, Diabetes & Metabolism Physician · Dayton, NJ

Mangaiyarkkarasi Sivakumar, MD MS is an endocrinology, diabetes & metabolism physician with a practice address in Dayton, New Jersey, and NPI 1942725049, issued on Aug 9, 2017. Check the license (New Jersey 25MA10945300, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1942725049
Name
Mangaiyarkkarasi Sivakumar
Credential
MD MS
Primary taxonomy
Endocrinology, Diabetes & Metabolism Physician 207RE0101X
License number
25MA10945300 NJ
Self-reported in NPPES; status is on the state search
Practice location
485 Georges RD Ste 114, Dayton, NJ 08810
Phone
(888) 460-1151
Enumerated
Aug 9, 2017
Record last updated
Oct 5, 2023
Medicare enrollment
Enrolled (PECOS I20231027001329); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Mangaiyarkkarasi Sivakumar in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
    Search for license 25MA10945300
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the New Jersey license search

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93% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024

188 Medicare Part D claims for 46 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims.

  1. Mangaiyarkkarasi Sivakumar188
  2. Specialty average2,630

Most prescribed

  1. Metformin Hcl12 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through 2 group practices

  1. Vcare Primary CareDayton, NJ
  2. Vcare Urgent Care LLCDayton, NJ

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Mangaiyarkkarasi Sivakumar among 417 endocrinology, diabetes & metabolism physician records in New Jersey

Mangaiyarkkarasi Sivakumar, MD MS is one of 417 endocrinology, diabetes & metabolism physician records with a practice address in New Jersey. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 85% of them.

  • NPI issued2017 · 85% of these records are older, 11% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 75% of these records are
  • Graduated2020 · median 2006 among the 313 with a school on file
  • Record last updated2023 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1 endocrinology, diabetes & metabolism physician record lists a practice address in Dayton

They are 1 of the 102 NPPES records with a practice address in Dayton, and 417 endocrinology, diabetes & metabolism physician records in New Jersey.

The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes

  1. Felice Caldarella, MDClinton, NJ 088091093789158
  2. Alva Moy-Daley, ANP-BCBridgewater, NJ 088071073944104
  3. Aditi Patel, DOBridgewater, NJ 088071255823407
  4. Aarti RavikumarBridgewater, NJ 088071578844007
  5. Leon Shulman, MDBridgewater, NJ 088071477599348
  6. Arie Maman, MDEast Brunswick, NJ 088161609961408
  7. Gowry Reddy, MDEast Brunswick, NJ 088161881260172
  8. Matthew Surgan, M.D.East Brunswick, NJ 088161871798579

Common questions

What is Mangaiyarkkarasi Sivakumar, MD MS's NPI number?

Mangaiyarkkarasi Sivakumar, MD MS's National Provider Identifier (NPI) is 1942725049, issued on Aug 9, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Mangaiyarkkarasi Sivakumar, MD MS located?

The NPPES record lists a practice address at 485 Georges RD Ste 114, Dayton, NJ, 08810. Phone: (888) 460-1151. Providers update this record themselves, so call before visiting.

How can I verify Mangaiyarkkarasi Sivakumar, MD MS's license?

NPPES lists New Jersey license number 25MA10945300, as entered by the provider. Search the New Jersey State Board of Medical Examiners at https://newjersey.mylicense.com/verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Mangaiyarkkarasi Sivakumar, MD MS prescribe under Medicare Part D?

In 2024, Mangaiyarkkarasi Sivakumar, MD MS had 188 Medicare Part D claims for 46 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.