Jacob V. Greuel, MD
NPI 1912183138ActiveIndividual· Family Medicine· Tulsa, OK
Family Medicine (MD) with St. John Physicians, Inc., practicing in Tulsa, Oklahoma. Their prescriptions cost Medicare Part D more than their services did: $23,017 for 219 claims, against $8,017 paid for services in 2024. Lists Ascension St John Medical Center as a hospital affiliation.
Overview
| NPI | 1912183138 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jan 17, 2008 |
| Last updated in NPPES | Nov 20, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | MD27744 | 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 - Family Practice (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 77 |
|---|---|
| Services billed | 119 across 24 procedure codes |
| Paid by Medicare | $8,017 |
Part D prescriptions in 2024
| Prescriptions (claims) | 219 · 423 30-day fills |
|---|---|
| Patients | 40 |
| Total drug cost | $23,017 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 2005 |
|---|---|
| Medicare specialty | Family Practice |
Medical group
- St. John Physicians, Inc.Tulsa, OK · 259 clinicians
Hospital affiliation
- Ascension St John Medical CenterTulsa, OK
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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