Mark Buettner, PA-C
NPI 1821087826ActiveIndividual· Physician Assistant· Lima, OH
Physician Assistant (PA-C) with Mercy Health Physicians Lima Specialty Care LLC, practicing in Lima, Ohio. Their prescriptions cost Medicare Part D more than their services did: $308,820 for 1,808 claims, against $59,444 paid for services in 2024. Zoll Services LLC (A/K/A Zoll Lifecor Corp) was the largest of 6 companies reporting payments in 2025, $462.21 in all, mostly food and beverage. Lists Grand Lake Health System and 1 other hospital as hospital affiliations.
Overview
| NPI | 1821087826 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Oct 21, 2005 |
| Last updated in NPPES | May 10, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 50.001182 | OH |
| Physician Assistant, Surgical | 363AS0400X | 50001182 | OH |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Physician Assistant (OH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 621 |
|---|---|
| Services billed | 922 across 10 procedure codes |
| Paid by Medicare | $59,444 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,808 · 4,277 30-day fills |
|---|---|
| Patients | 642 |
| Total drug cost | $308,820 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 2009 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Mercy Health Physicians Lima Specialty Care LLCLima, OH · 253 clinicians
Hospital affiliations
- Grand Lake Health SystemSaint Marys, OH
- Mercy Health St Ritas Medical CenterLima, OH
Industry payments (Open Payments)
- 2025$462.21 · 23 payments from 6 companies
- 2024$226.81 · 11 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $276.57 | 14 |
| Amgen Inc. | $70.62 | 4 |
| Novartis Pharmaceuticals Corporation | $49.37 | 2 |
| Abbott Laboratories | $25.78 | 1 |
| Philips North America LLC | $20.29 | 1 |
What the 2025 payments were for
- Food and Beverage$462.21 · 23 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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