Ronnie N. Diem, PAC
NPI 1932164324ActiveIndividual· Physician Assistant· Dover, DE
Physician Assistant (PAC) with Coastal Walk in and 1 other group, practicing in Dover, Delaware. 515 Medicare patients in 2024, $59,902 paid; nearly all of their 1,800 Part D prescriptions were generic (93%). Astrazeneca Pharmaceuticals LP was the largest of 15 companies reporting payments in 2025, $1,135 in all, mostly food and beverage. Lists Bayhealth Hospital, Sussex Campus and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1932164324 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PAC |
| Sole proprietor | No |
| NPI issued | Apr 19, 2006 |
| Last updated in NPPES | Jun 25, 2025 |
| Certified by provider | Jun 25, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | C50000437 | DE |
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 - Physician Assistant (DE) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 515 |
|---|---|
| Services billed | 854 across 22 procedure codes |
| Paid by Medicare | $59,902 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,800 · 2,775 30-day fills |
|---|---|
| Patients | 531 |
| Total drug cost | $65,522 |
| Generic share | 93% of claims |
Education and affiliations
| Graduation year | 2003 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical groups
- Coastal Walk inHarrington, DE · 4 clinicians
- Coastal Primary CareHarrington, DE · 2 clinicians
Hospital affiliations
- Bayhealth Hospital, Sussex CampusMilford, DE
- Bayhealth Medical Center, Kent CampusDover, DE
- Christiana HospitalNewark, DE
- Tidalhealth Nanticoke, Inc.Seaford, DE
Other facilities
- Amedisys Delaware, LLCHome health agency · Dover, DE
- Aveanna Home HealthcareHome health agency · Milford, DE
- Bayada Home Health Care at BayhealthHome health agency · Dover, DE
- Christianacare HomehealthHome health agency · Camden, DE
Industry payments (Open Payments)
- 2025$1,135 · 78 payments from 15 companies
- 2024$631.10 · 46 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $510.86 | 40 |
| Novo Nordisk Inc | $181.39 | 12 |
| Glaxosmithkline, LLC. | $67.45 | 4 |
| Pfizer Inc. | $51.72 | 3 |
| Astellas Pharma US Inc | $43.36 | 3 |
What the 2025 payments were for
- Food and Beverage$1,135 · 78 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Physician Assistant providers in Dover
- 1831495282
- 1780862706
- 1013735018
- 1518559921
- 1770850562
- 1174299754
- 1598390460
- 1588574990
- 1194194035
- 1417512187
- 1033342969
- 1780368084