Loyal Richard Stierlen, DO
NPI 1447275052ActiveIndividual· Surgery· Oklahoma City, OK
Surgery (DO) with Integris Ambulatory Care Corporation, practicing in Oklahoma City, Oklahoma. 181 Medicare patients in 2024, $65,720 paid; nearly all of their 186 Part D prescriptions were generic (99%). Davol Inc. was the largest of 3 companies reporting payments in 2025, $191.64 in all, mostly food and beverage. Lists Integris Baptist Medical Center, Inc and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1447275052 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Jul 13, 2006 |
| Last updated in NPPES | Jul 3, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | 4438 | 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 - General Surgery (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 181 |
|---|---|
| Services billed | 503 across 69 procedure codes |
| Paid by Medicare | $65,720 |
Part D prescriptions in 2024
| Prescriptions (claims) | 186 · 186 30-day fills |
|---|---|
| Patients | 139 |
| Total drug cost | $1,441 |
| Generic share | 99% of claims |
Education and affiliations
| Graduation year | 2001 |
|---|---|
| Medicare specialty | General Surgery |
Medical group
- Integris Ambulatory Care CorporationSpencer, OK · 685 clinicians
Hospital affiliations
- Integris Baptist Medical Center, IncOklahoma City, OK
- Integris Canadian Valley HospitalYukon, OK
- Integris Health Edmond HospitalEdmond, OK
- Integris Health Enid HospitalEnid, OK
- Integris Southwest Medical CenterOklahoma City, OK
Industry payments (Open Payments)
- 2025$191.64 · 4 payments from 3 companies
- 2024$1,412 · 14 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Davol Inc. | $118.50 | 1 |
| Acera Surgical, Inc. | $49.39 | 2 |
| Polynovo North America LLC | $23.75 | 1 |
What the 2025 payments were for
- Food and Beverage$191.64 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 159 general surgeons in Oklahoma City · All general surgeons in Oklahoma