Kalyani Theivanayagam, M.D.
NPI 1598878910ActiveIndividual· Internal Medicine· Summit, NJ
Internal Medicine (M.D.) with State of New Jersey Omb Centralized Payroll and 1 other group, practicing in Summit, New Jersey. Their prescriptions cost Medicare Part D more than their services did: $740,976 for 7,476 claims, against $84,131 paid for services in 2024. Dexcom, Inc. was the largest of 2 companies reporting payments in 2025, $107.71 in all, mostly food and beverage. Lists Cooperman Barnabas Medical Center as a hospital affiliation.
Overview
| NPI | 1598878910 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 17, 2006 |
| Last updated in NPPES | Dec 23, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 25MA06857500 | NJ |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (NJ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 120 |
|---|---|
| Services billed | 988 across 28 procedure codes |
| Paid by Medicare | $84,131 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,476 · 10,894 30-day fills |
|---|---|
| Patients | 320 |
| Total drug cost | $740,976 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 1995 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- State of New Jersey Omb Centralized PayrollTrenton, NJ · 131 clinicians
- Manickam Ganesh MD PAWest Orange, NJ · 2 clinicians
Hospital affiliation
- Cooperman Barnabas Medical CenterLivingston, NJ
Industry payments (Open Payments)
- 2025$107.71 · 2 payments from 2 companies
- 2024$122.01 · 4 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Dexcom, Inc. | $91.49 | 1 |
| Lilly USA, LLC | $16.22 | 1 |
What the 2025 payments were for
- Food and Beverage$107.71 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 58 internal medicine physicians in Summit · All internal medicine physicians in New Jersey