Kumar B. Ennamuri, MD
NPI 1396783056ActiveIndividual· Internal Medicine· Norman, OK
Internal Medicine (MD) with Mercy Clinic Oklahoma Communities, practicing in Norman, Oklahoma. Their prescriptions cost Medicare Part D more than their services did: $190,025 for 2,298 claims, against $41,055 paid for services in 2024. Exact Sciences Corporation reported $16.47 in payments in 2025, mostly food and beverage. Lists Mercy Hospital Ada and 1 other hospital as hospital affiliations.
Overview
| NPI | 1396783056 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 3, 2006 |
| Last updated in NPPES | Sep 29, 2026 |
| Certified by provider | Sep 11, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 20474 | 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 - Internal Medicine (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 231 |
|---|---|
| Services billed | 548 across 14 procedure codes |
| Paid by Medicare | $41,055 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,298 · 4,513 30-day fills |
|---|---|
| Patients | 281 |
| Total drug cost | $190,025 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 1981 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Mercy Clinic Oklahoma CommunitiesOklahoma City, OK · 649 clinicians
Hospital affiliations
- Mercy Hospital AdaAda, OK
- Norman RegionalNorman, OK
Industry payments (Open Payments)
- 2025$16.47 · 1 payment from 1 company
- 2024$443.75 · 4 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Exact Sciences Corporation | $16.47 | 1 |
What the 2025 payments were for
- Food and Beverage$16.47 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other internal medicine physicians in Norman
- 1003013723
- 1225020035
- 1245867779
- 1295727089
- 1386626497
- 1396737789
- 1437363702
- 1477181121
- 1477847127
- 1518251735
- 1538234554
- 1649476136
All 45 internal medicine physicians in Norman · All internal medicine physicians in Oklahoma