Puvanalingam Ayyadurai, MD
NPI 1972919942ActiveIndividual· Internal Medicine, Cardiovascular Disease· Grand Forks, ND
Internal Medicine, Cardiovascular Disease (MD) with Altru Health System, practicing in Grand Forks, North Dakota. Their prescriptions cost Medicare Part D more than their services did: $3,341,758 for 3,445 claims, against $171,594 paid for services in 2024. Merck Sharp & Dohme LLC was the largest of 5 companies reporting payments in 2025, $1,571 in all, mostly travel and lodging. Lists Altru Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1972919942 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 10, 2014 |
| Last updated in NPPES | Jun 2, 2020 |
| Certified by provider | Jun 2, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | 15887 | ND |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Cardiovascular Disease (Cardiology) (MN); Practitioner - Cardiovascular Disease (Cardiology) (ND) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 2,247 |
|---|---|
| Services billed | 5,809 across 42 procedure codes |
| Paid by Medicare | $171,594 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,445 · 5,605 30-day fills |
|---|---|
| Patients | 505 |
| Total drug cost | $3,341,758 |
| Generic share | 80% of claims |
Education and affiliations
| Graduation year | 2007 |
|---|---|
| Medicare specialty | Cardiovascular Disease (Cardiology) |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Altru Health SystemGrand Forks, ND · 684 clinicians
Hospital affiliations
- Altru HospitalGrand Forks, ND
- Lifecare Medical CenterRoseau, MN
- Northwood Deaconess Health CenterNorthwood, ND
- Pembina County Memorial HospitalCavalier, ND
- Towner County Medical CenterCando, ND
Industry payments (Open Payments)
- 2025$1,571 · 11 payments from 5 companies
- 2024$603.92 · 9 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $1,396 | 7 |
| Edwards Lifesciences Corporation | $62.18 | 1 |
| Angiodynamics, Inc. | $59.71 | 1 |
| Abbott Laboratories | $33.61 | 1 |
| Novartis Pharmaceuticals Corporation | $19.32 | 1 |
What the 2025 payments were for
- Travel and Lodging$1,172 · 4 payments
- Food and Beverage$398.99 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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