Koushik Nag, DO
NPI 1699892059ActiveIndividual· Internal Medicine, Interventional Cardiology· Avondale, AZ
Internal Medicine, Interventional Cardiology (DO) in Avondale, Arizona, trained at Michigan State University College of Osteopathic Medicine (class of 2002). Their prescriptions cost Medicare Part D more than their services did: $1,230,799 for 6,610 claims, against $375,158 paid for services in 2024. Biosense Webster, Inc. was the largest of 11 companies reporting payments in 2025, $750.67 in all, mostly food and beverage.
Overview
| NPI | 1699892059 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Mar 23, 2007 |
| Last updated in NPPES | Aug 5, 2024 |
| Certified by provider | Aug 5, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Interventional Cardiology Primary | 207RI0011X | 005149 | AZ |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Cardiovascular Disease (Cardiology) (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,647 |
|---|---|
| Services billed | 4,142 across 60 procedure codes |
| Paid by Medicare | $375,158 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,610 · 18,181 30-day fills |
|---|---|
| Patients | 976 |
| Total drug cost | $1,230,799 |
| Generic share | 84% of claims |
Education and affiliations
| Medical school | Michigan State University College of Osteopathic Medicine |
|---|---|
| Graduation year | 2002 |
| Medicare specialty | Cardiovascular Disease (Cardiology) |
| Telehealth | Offers telehealth |
Medical groups
- Sjhmc Physician ServicesGilbert, AZ · 646 clinicians
- Privia Medical Group Arizona, LLCAvondale, AZ · 91 clinicians
- Summit Healthcare AssociationShow Low, AZ · 77 clinicians
- Summit Healthcare Medical AssociatesShow Low, AZ · 75 clinicians
Hospital affiliations
- La Paz Regional HospitalParker, AZ
- St Josephs Hospital and Medical CenterPhoenix, AZ
- Summit Healthcare Regional Medical CenterShow Low, AZ
Industry payments (Open Payments)
- 2025$750.67 · 25 payments from 11 companies
- 2024$609.25 · 31 payments from 13 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Biosense Webster, Inc. | $290.59 | 4 |
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $122.41 | 4 |
| Novartis Pharmaceuticals Corporation | $110.46 | 5 |
| Pfizer Inc. | $50.81 | 3 |
| Novo Nordisk Inc | $40.59 | 2 |
What the 2025 payments were for
- Food and Beverage$750.67 · 25 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Interventional Cardiology providers in Avondale
- 1457849309
- 1710353123
- 1124139423
All Internal Medicine, Interventional Cardiology providers in Arizona →