Sara Buck Geisinger, DNP, AGNP-C
NPI 1922848662ActiveIndividual· Nurse Practitioner, Gerontology· Phoenix, AZ
Nurse Practitioner, Gerontology (DNP, AGNP-C) with Sjhmc Physician Services, practicing in Phoenix, Arizona. 103 Medicare patients in 2024, $9,820 paid; nearly all of their 150 Part D prescriptions were generic (96%). Lilly USA, LLC was the largest of 3 companies reporting payments in 2025, $104.48 in all, mostly food and beverage. Lists Mayo Clinic Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1922848662 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DNP, AGNP-C |
| Sole proprietor | No |
| NPI issued | May 30, 2024 |
| Last updated in NPPES | Aug 17, 2026 |
| Certified by provider | Aug 17, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Gerontology Primary | 363LG0600X | 308015 | AZ |
| Nurse Practitioner | 363L00000X | 308015 | AZ |
| Registered Nurse, Neuroscience | 163WN0800X | RN215739 | AZ |
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 (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 103 |
|---|---|
| Services billed | 115 across 4 procedure codes |
| Paid by Medicare | $9,820 |
Part D prescriptions in 2024
| Prescriptions (claims) | 150 · 261 30-day fills |
|---|---|
| Patients | 74 |
| Total drug cost | $4,168 |
| Generic share | 96% of claims |
Education and affiliations
| Graduation year | 2024 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Sjhmc Physician ServicesGilbert, AZ · 646 clinicians
Hospital affiliations
- Mayo Clinic HospitalPhoenix, AZ
- St Josephs Hospital and Medical CenterPhoenix, AZ
- Yavapai Regional Medical CenterPrescott, AZ
Other facilities
- MD Home HealthHome health agency · Phoenix, AZ
Industry payments (Open Payments)
- 2025$104.48 · 4 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $46.27 | 1 |
| Eisai Inc. | $38.24 | 2 |
| Neurelis, Inc. | $19.97 | 1 |
What the 2025 payments were for
- Food and Beverage$104.48 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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