Geraldine Holtz, NP
NPI 1518411081ActiveIndividual· Nurse Practitioner· McHenry, IL
Nurse Practitioner (NP) with Central Dupage Physician Group, practicing in McHenry, Illinois. Their prescriptions cost Medicare Part D more than their services did: $261,605 for 744 claims, against $14,266 paid for services in 2024. Genzyme Corporation was the largest of 2 companies reporting payments in 2025, $230.08 in all, mostly food and beverage. Lists Northwestern Medicine Central Dupage Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1518411081 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NP |
| Sole proprietor | No |
| NPI issued | Aug 12, 2016 |
| Last updated in NPPES | Sep 3, 2020 |
| Certified by provider | Sep 3, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | 209014862 | IL |
| Nurse Practitioner, Family | 363LF0000X | 209.014862 | IL |
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 (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 140 |
|---|---|
| Services billed | 234 across 11 procedure codes |
| Paid by Medicare | $14,266 |
Part D prescriptions in 2024
| Prescriptions (claims) | 744 · 964 30-day fills |
|---|---|
| Patients | 304 |
| Total drug cost | $261,605 |
| Generic share | 44% of claims |
Education and affiliations
| Graduation year | 2016 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Central Dupage Physician GroupGeneva, IL · 1,080 clinicians
Hospital affiliations
- Northwestern Medicine Central Dupage HospitalWinfield, IL
- Northwestern Medicine McHenryMcHenry, IL
Industry payments (Open Payments)
- 2025$230.08 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Genzyme Corporation | $121.83 | 1 |
| Verona Pharma, Inc. | $108.25 | 1 |
What the 2025 payments were for
- Food and Beverage$230.08 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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