Darin K. Stockton, MD
NPI 1689638652ActiveIndividual· Internal Medicine· Oklahoma City, OK
Internal Medicine (MD) in Oklahoma City, Oklahoma, trained at University of Oklahoma College of Medicine (class of 1994). Their prescriptions cost Medicare Part D more than their services did: $1,856,340 for 16,593 claims, against $165,787 paid for services in 2024. Pfizer Inc. was the largest of 21 companies reporting payments in 2025, $1,207 in all, mostly food and beverage.
Overview
| NPI | 1689638652 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 14, 2006 |
| Last updated in NPPES | Jan 23, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 19470 | 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 | 491 |
|---|---|
| Services billed | 2,379 across 55 procedure codes |
| Paid by Medicare | $165,787 |
Part D prescriptions in 2024
| Prescriptions (claims) | 16,593 · 34,244 30-day fills |
|---|---|
| Patients | 794 |
| Total drug cost | $1,856,340 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | University of Oklahoma College of Medicine |
|---|---|
| Graduation year | 1994 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Mercy Clinic Oklahoma CommunitiesOklahoma City, OK · 649 clinicians
Hospital affiliations
- Integris Baptist Medical Center, IncOklahoma City, OK
- Mercy Hospital Logan CountyGuthrie, OK
- Mercy Hospital Oklahoma City, IncOklahoma City, OK
- Norman RegionalNorman, OK
- O U Medical CenterOklahoma City, OK
Other facilities
- Elara Caring XxHome health agency · Oklahoma City, OK
- Mercy Home HealthHome health agency · Oklahoma City, OK
Industry payments (Open Payments)
- 2025$1,207 · 75 payments from 21 companies
- 2024$845.38 · 52 payments from 15 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $218.76 | 14 |
| Abbvie Inc. | $208.57 | 12 |
| Astrazeneca Pharmaceuticals LP | $160.64 | 13 |
| Astellas Pharma US Inc | $64.94 | 4 |
| Glaxosmithkline, LLC. | $59.14 | 4 |
What the 2025 payments were for
- Food and Beverage$1,207 · 75 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other internal medicine physicians in Oklahoma City
- 1013958321
- 1063022549
- 1063070787
- 1073136578
- 1083837330
- 1093742819
- 1104801893
- 1124312343
- 1124608831
- 1134703762
- 1144544594
- 1144553538
All 473 internal medicine physicians in Oklahoma City · All internal medicine physicians in Oklahoma