Tim T. Issac, M.D.
NPI 1013116805ActiveIndividual· Internal Medicine, Cardiovascular Disease· Dallas, TX
Internal Medicine, Cardiovascular Disease (M.D.) in Dallas, Texas, trained at Creighton University School of Medicine (class of 2004). Their prescriptions cost Medicare Part D more than their services did: $813,658 for 3,981 claims, against $320,501 paid for services in 2024. Endologix LLC was the largest of 29 companies reporting payments in 2025, $4,427 in all, mostly food and beverage.
Overview
| NPI | 1013116805 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 12, 2007 |
| Last updated in NPPES | Apr 9, 2026 |
| Certified by provider | Apr 9, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | N6379 | TX |
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) (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 490 |
|---|---|
| Services billed | 2,849 across 94 procedure codes |
| Paid by Medicare | $320,501 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,981 · 8,984 30-day fills |
|---|---|
| Patients | 626 |
| Total drug cost | $813,658 |
| Generic share | 78% of claims |
Education and affiliations
| Medical school | Creighton University School of Medicine |
|---|---|
| Graduation year | 2004 |
| Medicare specialty | Cardiovascular Disease (Cardiology) |
| Secondary specialties | Interventional Cardiology, Peripheral Vascular Disease |
Medical group
- Premier Cardiovascular Care of Dallas, PLLCDuncanville, TX · 5 clinicians
Hospital affiliations
- Baylor Scott & White Heart & Vascular Hospital - DallasDallas, TX
- Methodist Charlton Medical CenterDallas, TX
- Methodist Dallas Medical CenterDallas, TX
- Methodist Mansfield Medical CenterMansfield, TX
Industry payments (Open Payments)
- 2025$4,427 · 139 payments from 29 companies
- 2024$2,828 · 91 payments from 31 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Endologix LLC | $1,226 | 5 |
| Kestra Medical Technology Services, Inc. | $470.97 | 26 |
| Medtronic, Inc. | $437.16 | 17 |
| Abbott Laboratories | $293.16 | 14 |
| Aop Health US, LLC | $248.98 | 1 |
What the 2025 payments were for
- Food and Beverage$3,927 · 138 payments
- Consulting Fee$500.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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