Ryan Matthew Acker, DO
NPI 1659949303ActiveIndividual· Emergency Medicine· Tulsa, OK
Emergency Medicine (DO) in Tulsa, Oklahoma, trained at Oklahoma State University College of Osteopathic Medicine (class of 2022). 26 Medicare patients in 2024, $2,637 paid; nearly all of their 136 Part D prescriptions were generic (93%). Vertex Pharmaceuticals Incorporated was the largest of 2 companies reporting payments in 2025, $319.89 in all, mostly food and beverage.
Overview
| NPI | 1659949303 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | Yes |
| NPI issued | Jun 17, 2021 |
| Last updated in NPPES | Aug 20, 2025 |
| Certified by provider | Aug 20, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | 8063 | OK |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 - Emergency Medicine (OK); Practitioner - Emergency Medicine (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 26 |
|---|---|
| Services billed | 39 across 10 procedure codes |
| Paid by Medicare | $2,637 |
Part D prescriptions in 2024
| Prescriptions (claims) | 136 · 139 30-day fills |
|---|---|
| Patients | 105 |
| Total drug cost | $1,137 |
| Generic share | 93% of claims |
Education and affiliations
| Medical school | Oklahoma State University College of Osteopathic Medicine |
|---|---|
| Graduation year | 2022 |
| Medicare specialty | Emergency Medicine |
Medical groups
- Cherokee NationTahlequah, OK · 449 clinicians
- Ies ER Oklahoma LLCMuskogee, OK · 143 clinicians
- South Central Emergency Services, PCMiami, OK · 55 clinicians
Hospital affiliations
- Cherokee Nation W W Hastings Indian HospitalTahlequah, OK
- Cleveland Area HospitalCleveland, OK
- Hillcrest Hospital CushingCushing, OK
- Saint Francis Hospital, IncTulsa, OK
- Stillwater Medical CenterStillwater, OK
Industry payments (Open Payments)
- 2025$319.89 · 4 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Vertex Pharmaceuticals Incorporated | $245.47 | 2 |
| Abiomed | $74.42 | 2 |
What the 2025 payments were for
- Food and Beverage$319.89 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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