Darlene Kay Foster, MD
NPI 1194717132ActiveIndividual· Internal Medicine· Oklahoma City, OK
Internal Medicine (MD) in Oklahoma City, Oklahoma, trained at University of Oklahoma College of Medicine (class of 1993). Their prescriptions cost Medicare Part D more than their services did: $1,151,832 for 7,626 claims, against $230,711 paid for services in 2024. Lilly USA, LLC was the largest of 15 companies reporting payments in 2025, $641.55 in all, mostly food and beverage.
Overview
| NPI | 1194717132 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Aug 16, 2005 |
| Last updated in NPPES | Jul 9, 2024 |
| Certified by provider | Jul 9, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 18470 | 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 | 248 |
|---|---|
| Services billed | 4,070 across 30 procedure codes |
| Paid by Medicare | $230,711 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,626 · 17,893 30-day fills |
|---|---|
| Patients | 482 |
| Total drug cost | $1,151,832 |
| Generic share | 82% of claims |
Education and affiliations
| Medical school | University of Oklahoma College of Medicine |
|---|---|
| Graduation year | 1993 |
| Medicare specialty | Internal Medicine |
Hospital affiliations
- Integris Baptist Medical Center, IncOklahoma City, OK
- Integris Southwest Medical CenterOklahoma City, OK
- Mercy Hospital Oklahoma City, IncOklahoma City, OK
- O U Medical CenterOklahoma City, OK
- Onecore HealthOklahoma City, OK
Other facilities
- Elara Caring XxHome health agency · Oklahoma City, OK
- Family Choice Home Care Oklahoma CityHome health agency · Oklahoma City, OK
- Golden Age Home HealthHome health agency · Oklahoma City, OK
- Harmony Home Care IIHome health agency · Piedmont, OK
- Interim Healthcare of Oklahoma City, IncHome health agency · Oklahoma City, OK
Industry payments (Open Payments)
- 2025$641.55 · 30 payments from 15 companies
- 2024$433.48 · 23 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $193.10 | 6 |
| Astrazeneca Pharmaceuticals LP | $92.59 | 4 |
| Bayer Healthcare Pharmaceuticals Inc. | $84.27 | 4 |
| Astellas Pharma US Inc | $68.02 | 4 |
| Corcept Therapeutics | $29.88 | 2 |
What the 2025 payments were for
- Food and Beverage$641.55 · 30 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 473 internal medicine physicians in Oklahoma City · All internal medicine physicians in Oklahoma