Jagathi Devi Challagalla, M.D.
NPI 1376521617ActiveIndividual· Internal Medicine, Hematology & Oncology· Wichita Falls, TX
Internal Medicine, Hematology & Oncology (M.D.) with Texas Oncology PA, practicing in Wichita Falls, Texas. Their prescriptions cost Medicare Part D more than their services did: $7,653,448 for 2,182 claims, against $4,583,683 paid for services in 2024. Exelixis Inc. was the largest of 27 companies reporting payments in 2025, $6,729 in all, mostly consulting fees. Lists Clay County Memorial Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1376521617 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jan 6, 2006 |
| Last updated in NPPES | Sep 30, 2024 |
| Certified by provider | Sep 30, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | K5855 | TX |
| Internal Medicine, Medical Oncology | 207RX0202X | K5855 | 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 - Hematology/Oncology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,519 |
|---|---|
| Services billed | 341,673 across 181 procedure codes |
| Paid by Medicare | $4,583,683 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,182 · 3,420 30-day fills |
|---|---|
| Patients | 388 |
| Total drug cost | $7,653,448 |
| Generic share | 66% of claims |
Education and affiliations
| Graduation year | 1991 |
|---|---|
| Medicare specialty | Hematology/Oncology |
| Secondary specialties | Internal Medicine, Medical Oncology |
| Telehealth | Offers telehealth |
Medical group
- Texas Oncology PAPlano, TX · 1,014 clinicians
Hospital affiliations
- Clay County Memorial HospitalHenrietta, TX
- Graham Regional Medical CenterGraham, TX
- Seymour HospitalSeymour, TX
- United Regional Health Care SystemWichita Falls, TX
- Wilbarger General HospitalVernon, TX
Other facilities
- Healing Hands Healthcare LLCHome health agency · Wichita Falls, TX
Industry payments (Open Payments)
- 2025$6,729 · 46 payments from 27 companies
- 2024$6,529 · 55 payments from 26 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Exelixis Inc. | $2,565 | 7 |
| Janssen Biotech, Inc. | $2,127 | 5 |
| Partner Therapeutics, Inc. | $1,000 | 1 |
| Karyopharm Therapeutics Inc. | $273.91 | 3 |
| Caris Mpi, Inc. | $135.39 | 2 |
What the 2025 payments were for
- Consulting Fee$2,760 · 2 payments
- Honoraria$2,345 · 2 payments
- Food and Beverage$1,134 · 37 payments
- Travel and Lodging$397.40 · 4 payments
- Education$92.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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