Adanma Anji Ayanambakkam Attanathi
NPI 1265813513ActiveIndividual· Internal Medicine, Hematology & Oncology· Oklahoma City, OK
Internal Medicine, Hematology & Oncology with Ou Health Partners Inc, practicing in Oklahoma City, Oklahoma. Their prescriptions cost Medicare Part D more than their services did: $10,119,475 for 2,040 claims, against $92,225 paid for services in 2024. Janssen Biotech, Inc. was the largest of 7 companies reporting payments in 2025, $6,495 in all, mostly consulting fees. Lists Mercy Hospital Oklahoma City, Inc and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1265813513 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | Yes |
| NPI issued | Jun 12, 2015 |
| Last updated in NPPES | Jan 28, 2025 |
| Certified by provider | Jan 28, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 31486 | OK |
| Internal Medicine | 207R00000X | 390200000 | OK |
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 (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 355 |
|---|---|
| Services billed | 966 across 9 procedure codes |
| Paid by Medicare | $92,225 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,040 · 2,162 30-day fills |
|---|---|
| Patients | 248 |
| Total drug cost | $10,119,475 |
| Generic share | 67% of claims |
Education and affiliations
| Graduation year | 2012 |
|---|---|
| Medicare specialty | Hematology/Oncology |
Medical group
- Ou Health Partners IncOklahoma City, OK · 1,184 clinicians
Hospital affiliations
- Mercy Hospital Oklahoma City, IncOklahoma City, OK
- Norman RegionalNorman, OK
- O U Medical CenterOklahoma City, OK
- Stillwater Medical CenterStillwater, OK
Industry payments (Open Payments)
- 2025$6,495 · 21 payments from 7 companies
- 2024$5,836 · 24 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $6,049 | 7 |
| Caris Mpi, Inc. | $133.20 | 1 |
| Pfizer Inc. | $116.82 | 4 |
| Astellas Pharma US Inc | $87.27 | 4 |
| Merck Sharp & Dohme LLC | $64.60 | 3 |
What the 2025 payments were for
- Consulting Fee$5,176 · 3 payments
- Travel and Lodging$811.18 · 2 payments
- Food and Beverage$507.23 · 16 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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