Mark D. Erhardt, D.O.
NPI 1770546640ActiveIndividual· Family Medicine· Bartlesville, OK
Family Medicine (D.O.) in Bartlesville, Oklahoma, trained at Lake Erie College of Osteopathic Medicine, Erie (class of 1993). Their prescriptions cost Medicare Part D more than their services did: $879,957 for 9,385 claims, against $141,278 paid for services in 2024. Amgen Inc. was the largest of 10 companies reporting payments in 2025, $727.34 in all, mostly food and beverage.
Overview
| NPI | 1770546640 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Apr 10, 2006 |
| Last updated in NPPES | Jun 29, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 4367 | OK |
| Family Medicine | 207Q00000X | 0102201015 | VA |
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 (FL); Practitioner - Family Practice (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 491 |
|---|---|
| Services billed | 19,161 across 49 procedure codes |
| Paid by Medicare | $141,278 |
Part D prescriptions in 2024
| Prescriptions (claims) | 9,385 · 19,708 30-day fills |
|---|---|
| Patients | 681 |
| Total drug cost | $879,957 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | Lake Erie College of Osteopathic Medicine, Erie |
|---|---|
| Graduation year | 1993 |
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical group
- Primary Care Associates PCBartlesville, OK · 5 clinicians
Hospital affiliations
- Ascension St John Jane PhillipsBartlesville, OK
- Ascension St John Medical CenterTulsa, OK
Other facilities
- Amedisys Home HealthHome health agency · Bartlesville, OK
- Angels Care Home Health of East OklahomaHome health agency · Broken Arrow, OK
- Ascension at HomeHome health agency · Bartlesville, OK
- Comforting Hands Hospice, LLCHospice · Bartlesville, OK
Industry payments (Open Payments)
- 2025$727.34 · 37 payments from 10 companies
- 2024$788.28 · 51 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $146.94 | 7 |
| Astellas Pharma US Inc | $123.74 | 5 |
| Abbvie Inc. | $95.79 | 4 |
| Lilly USA, LLC | $90.22 | 6 |
| Novo Nordisk Inc | $64.31 | 3 |
What the 2025 payments were for
- Food and Beverage$727.34 · 37 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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