Michael S. Charles, MD
NPI 1942293097ActiveIndividual· Surgery, Surgical Critical Care· Tulsa, OK
Surgery, Surgical Critical Care (MD) with St. John Physicians, Inc., practicing in Tulsa, Oklahoma. Mostly services rather than prescriptions: Medicare paid $97,114 for 339 patients in 2024, with only 33 Part D claims. Medtronic, Inc. was the largest of 3 companies reporting payments in 2025, $306.44 in all, mostly food and beverage. Lists Ascension St John Broken Arrow and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1942293097 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 24, 2005 |
| Last updated in NPPES | Nov 10, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery, Surgical Critical Care Primary | 2086S0102X | 28445 | OK |
| Surgery | 208600000X | H5534 | TX |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 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 | 339 |
|---|---|
| Services billed | 852 across 64 procedure codes |
| Paid by Medicare | $97,114 |
Part D prescriptions in 2024
| Prescriptions (claims) | 33 · 33 30-day fills |
|---|---|
| Patients | 30 |
| Total drug cost | $169.57 |
| Generic share | 100% of claims |
Education and affiliations
| Graduation year | 1985 |
|---|---|
| Medicare specialty | General Surgery |
Medical group
- St. John Physicians, Inc.Tulsa, OK · 259 clinicians
Hospital affiliations
- Ascension St John Broken ArrowBroken Arrow, OK
- Ascension St John Jane PhillipsBartlesville, OK
- Ascension St John Medical CenterTulsa, OK
- Ascension St John SapulpaSapulpa, OK
- St John OwassoOwasso, OK
Industry payments (Open Payments)
- 2025$306.44 · 3 payments from 3 companies
- 2024$4,399 · 22 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $166.66 | 1 |
| Clr Medical, Inc. | $75.00 | 1 |
| Intuitive Surgical, Inc. | $64.78 | 1 |
What the 2025 payments were for
- Food and Beverage$306.44 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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