Katherine Gruber Wafer, CRNP
NPI 1164617379ActiveIndividual· Nurse Practitioner, Family· Hagerstown, MD
Nurse Practitioner, Family (CRNP) with Meritus Medical Center Inc and 2 other groups, practicing in Hagerstown, Maryland. Their prescriptions cost Medicare Part D more than their services did: $91,132 for 786 claims, against $2,628 paid for services in 2024. Galderma Laboratories, L.P. reported $13.55 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1164617379 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | CRNP |
| Sole proprietor | No |
| NPI issued | Sep 11, 2007 |
| Last updated in NPPES | Mar 4, 2026 |
| Certified by provider | Mar 4, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | R164999 | MD |
| Family Medicine | 207Q00000X | R164999 | MD |
| Nurse Practitioner, Family | 363LF0000X | 4704339284 | MI |
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 (DC); Practitioner - Nurse Practitioner (IN); Practitioner - Nurse Practitioner (MD); Practitioner - Nurse Practitioner (VA); Practitioner - Nurse Practitioner (WV) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 35 |
|---|---|
| Services billed | 62 across 18 procedure codes |
| Paid by Medicare | $2,628 |
Part D prescriptions in 2024
| Prescriptions (claims) | 786 · 1,254 30-day fills |
|---|---|
| Patients | 178 |
| Total drug cost | $91,132 |
| Generic share | 84% of claims |
Education and affiliations
| Graduation year | 2017 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical groups
- Meritus Medical Center IncHagerstown, MD · 743 clinicians
- Crh MD Management LLCDunkirk, MD · 71 clinicians
- Post Acute Telehealth PCBeckley, WV · 58 clinicians
Industry payments (Open Payments)
- 2025$13.55 · 1 payment from 1 company
- 2024$16.65 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Galderma Laboratories, L.P. | $13.55 | 1 |
What the 2025 payments were for
- Food and Beverage$13.55 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 127 family nurse practitioners in Hagerstown · All family nurse practitioners in Maryland