Mark L. Davis, P.A.-C
NPI 1487747713ActiveIndividual· Physician Assistant, Medical· Shawnee, OK
Physician Assistant, Medical (P.A.-C) with Saints Medical Group, LLC, practicing in Shawnee, Oklahoma. Their prescriptions cost Medicare Part D more than their services did: $1,861,099 for 9,972 claims, against $77,231 paid for services in 2024. Glaxosmithkline, LLC. was the largest of 12 companies reporting payments in 2025, $994.43 in all, mostly food and beverage. Lists Mercy Hospital Ada and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1487747713 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | P.A.-C |
| Sole proprietor | No |
| NPI issued | Sep 30, 2006 |
| Last updated in NPPES | Aug 29, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant, Medical Primary | 363AM0700X | PA801 | 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 - Physician Assistant (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 509 |
|---|---|
| Services billed | 1,807 across 24 procedure codes |
| Paid by Medicare | $77,231 |
Part D prescriptions in 2024
| Prescriptions (claims) | 9,972 · 18,663 30-day fills |
|---|---|
| Patients | 904 |
| Total drug cost | $1,861,099 |
| Generic share | 74% of claims |
Education and affiliations
| Graduation year | 1996 |
|---|---|
| Medicare specialty | Physician Assistant |
| Telehealth | Offers telehealth |
Medical group
- Saints Medical Group, LLCOklahoma City, OK · 435 clinicians
Hospital affiliations
- Mercy Hospital AdaAda, OK
- Oklahoma Heart Hospital South, LLCOklahoma City, OK
- Oklahoma Heart Hospital, LLCOklahoma City, OK
- Ssm Health St Anthony Hospital - Oklahoma CityOklahoma City, OK
- Ssm Health St Anthony Hospital - ShawneeShawnee, OK
Other facilities
- Cohesive HealthcareHome health agency · Shawnee, OK
- Ssm Health at Home Home Health - OklahomaHome health agency · Oklahoma City, OK
Industry payments (Open Payments)
- 2025$994.43 · 64 payments from 12 companies
- 2024$193.52 · 8 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaxosmithkline, LLC. | $199.59 | 20 |
| Baxter Healthcare | $158.33 | 10 |
| Viatris Specialty LLC | $155.08 | 10 |
| Regeneron Healthcare Solutions, Inc. | $152.24 | 6 |
| Amgen Inc. | $78.40 | 4 |
What the 2025 payments were for
- Food and Beverage$994.43 · 64 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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