Makenzie R. Griffin, FNP
NPI 1093209645ActiveIndividual· Nurse Practitioner, Family· Prince Frederick, MD
Nurse Practitioner, Family (FNP) with Calvert Internal Medicine Group, PA, practicing in Prince Frederick, Maryland. Their prescriptions cost Medicare Part D more than their services did: $392,987 for 5,146 claims, against $51,428 paid for services in 2024. Abbvie Inc. was the largest of 15 companies reporting payments in 2025, $405.52 in all, mostly food and beverage.
Overview
| NPI | 1093209645 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | FNP |
| Sole proprietor | No |
| NPI issued | Jun 18, 2018 |
| Last updated in NPPES | Nov 6, 2025 |
| Certified by provider | Nov 6, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | APRN11018528 | FL |
| Nurse Practitioner, Family | 363LF0000X | R209597 | MD |
| Nurse Practitioner, Family | 363LF0000X | 343144 | NY |
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 - Nurse Practitioner (FL); Practitioner - Nurse Practitioner (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 402 |
|---|---|
| Services billed | 1,683 across 59 procedure codes |
| Paid by Medicare | $51,428 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,146 · 10,784 30-day fills |
|---|---|
| Patients | 642 |
| Total drug cost | $392,987 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 2013 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Calvert Internal Medicine Group, PADunkirk, MD · 39 clinicians
Industry payments (Open Payments)
- 2025$405.52 · 22 payments from 15 companies
- 2024$1,267 · 78 payments from 20 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $52.42 | 3 |
| Novo Nordisk Inc | $49.03 | 3 |
| Astellas Pharma US Inc | $46.74 | 2 |
| Aimmune Therapeutics, Inc. | $34.52 | 2 |
| Lilly USA, LLC | $34.37 | 2 |
What the 2025 payments were for
- Food and Beverage$405.52 · 22 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 26 family nurse practitioners in Prince Frederick · All family nurse practitioners in Maryland