Wassim Atassi
NPI 1871533927ActiveIndividual· Internal Medicine· Highland, IN
Internal Medicine with Columbia Medical Center Ltd, practicing in Highland, Indiana. Their prescriptions cost Medicare Part D more than their services did: $1,327,428 for 19,563 claims, against $337,690 paid for services in 2024. Intuitive Surgical, Inc. was the largest of 7 companies reporting payments in 2025, $292.79 in all, mostly food and beverage. Lists Community Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1871533927 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Jun 7, 2006 |
| Last updated in NPPES | Mar 17, 2021 |
| Certified by provider | Mar 17, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 01058603A | IN |
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 - Internal Medicine (IN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 823 |
|---|---|
| Services billed | 5,481 across 47 procedure codes |
| Paid by Medicare | $337,690 |
Part D prescriptions in 2024
| Prescriptions (claims) | 19,563 · 26,867 30-day fills |
|---|---|
| Patients | 873 |
| Total drug cost | $1,327,428 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 1998 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Columbia Medical Center LtdHighland, IN · 6 clinicians
Hospital affiliations
- Community HospitalMunster, IN
- Franciscan Health DyerDyer, IN
- Franciscan Health Michigan CityMichigan City, IN
- Franciscan Health MunsterMunster, IN
- St Catherine Hospital IncEast Chicago, IN
Other facilities
- Powers Home Health ServicesHome health agency · Hobart, IN
- Dunes Hospice LLCHospice · Valparaiso, IN
- Hospice of the Calumet Area IncHospice · Munster, IN
- Regency Hospital of Northwest IndianaLong-term care hospital · East Chicago, IN
- Great Lakes Healthcare CenterNursing home · Dyer, IN
- Hammond-Whiting Care CenterNursing home · Whiting, IN
- Munster Med-InnNursing home · Munster, IN
- Rehabilitation Center at Hartsfield VillageNursing home · Munster, IN
Industry payments (Open Payments)
- 2025$292.79 · 8 payments from 7 companies
- 2024$160.92 · 9 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Intuitive Surgical, Inc. | $112.24 | 1 |
| Lilly USA, LLC | $70.00 | 2 |
| Abbvie Inc. | $32.76 | 1 |
| Novo Nordisk Inc | $29.30 | 1 |
| Amgen Inc. | $21.97 | 1 |
What the 2025 payments were for
- Food and Beverage$247.79 · 7 payments
- Education$45.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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