Ryan Greemann, DO
NPI 1528487832ActiveIndividual· Family Medicine· Maiden, NC
Family Medicine (DO) in Maiden, North Carolina, trained at William Carey University College of Osteopathic Medicine (class of 2014). Their prescriptions cost Medicare Part D more than their services did: $700,658 for 7,396 claims, against $987.23 paid for services in 2024. Xeris Pharmaceuticals, Inc. was the largest of 8 companies reporting payments in 2025, $304.68 in all, mostly food and beverage.
Overview
| NPI | 1528487832 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | Yes |
| NPI issued | Apr 15, 2014 |
| Last updated in NPPES | Aug 16, 2024 |
| Certified by provider | Aug 16, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 2017-00129 | NC |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 (NC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 40 |
|---|---|
| Services billed | 77 across 20 procedure codes |
| Paid by Medicare | $987.23 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,396 · 13,962 30-day fills |
|---|---|
| Patients | 450 |
| Total drug cost | $700,658 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | William Carey University College of Osteopathic Medicine |
|---|---|
| Graduation year | 2014 |
| Medicare specialty | Family Practice |
Medical groups
- Comprehab, IncGastonia, NC · 415 clinicians
- Gaston Family Health Services IncKings Mountain, NC · 98 clinicians
Hospital affiliation
- Catawba Valley Medical CenterHickory, NC
Industry payments (Open Payments)
- 2025$304.68 · 11 payments from 8 companies
- 2024$447.20 · 27 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Xeris Pharmaceuticals, Inc. | $102.99 | 1 |
| Novo Nordisk Inc | $49.20 | 2 |
| Pfizer Inc. | $39.12 | 2 |
| Astrazeneca Pharmaceuticals LP | $34.76 | 2 |
| Lilly USA, LLC | $26.40 | 1 |
What the 2025 payments were for
- Food and Beverage$304.68 · 11 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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