Karthik Diwakar Mekala, M.D.
NPI 1669739942ActiveIndividual· Internal Medicine, Interventional Cardiology· Longview, TX
Internal Medicine, Interventional Cardiology (M.D.) with Christus Trinity Clinic Texas, practicing in Longview, Texas. Their prescriptions cost Medicare Part D more than their services did: $306,703 for 2,765 claims, against $170,489 paid for services in 2024. Angiodynamics, Inc. was the largest of 12 companies reporting payments in 2025, $6,851 in all, mostly food and beverage. Lists Christus Good Shepherd Medical Center and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1669739942 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 11, 2012 |
| Last updated in NPPES | Jul 23, 2024 |
| Certified by provider | Jul 23, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Interventional Cardiology Primary | 207RI0011X | R9814 | TX |
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 (MI); Practitioner - Interventional Cardiology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 994 |
|---|---|
| Services billed | 2,588 across 99 procedure codes |
| Paid by Medicare | $170,489 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,765 · 6,985 30-day fills |
|---|---|
| Patients | 704 |
| Total drug cost | $306,703 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2012 |
|---|---|
| Medicare specialty | Interventional Cardiology |
Medical group
- Christus Trinity Clinic TexasTyler, TX · 1,540 clinicians
Hospital affiliations
- Christus Good Shepherd Medical CenterLongview, TX
- Christus Mother Frances HospitalTyler, TX
- Ut Health East Texas Carthage HospitalCarthage, TX
Industry payments (Open Payments)
- 2025$6,851 · 64 payments from 12 companies
- 2024$4,039 · 47 payments from 15 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Angiodynamics, Inc. | $5,226 | 21 |
| Shockwave Medical, Inc | $465.63 | 9 |
| Stryker Corporation | $362.52 | 12 |
| Medtronic, Inc. | $167.09 | 4 |
| Penumbra, Inc. | $136.27 | 2 |
What the 2025 payments were for
- Food and Beverage$3,431 · 55 payments
- Travel and Lodging$3,420 · 9 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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