Matias Alberto Gerstner, MD
NPI 1053044560ActiveIndividual· Internal Medicine· Ames, IA
Internal Medicine (MD) with McFarland Clinic PC, practicing in Ames, Iowa. Part D covered 551 prescriptions written in 2024, 78% of them generic. Tandem Diabetes Care, Inc. reported $22.13 in payments in 2025, mostly food and beverage. Lists Mary Greeley Medical Center as a hospital affiliation.
Overview
| NPI | 1053044560 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 3, 2022 |
| Last updated in NPPES | Dec 18, 2025 |
| Certified by provider | Dec 18, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | MD-53902 | IA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (IA) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 551 · 684 30-day fills |
|---|---|
| Patients | 96 |
| Total drug cost | $64,870 |
| Generic share | 78% of claims |
Education and affiliations
| Graduation year | 2018 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- McFarland Clinic PCAmes, IA · 363 clinicians
Hospital affiliation
- Mary Greeley Medical CenterAmes, IA
Other facilities
- Mary Greeley Home Health ServicesHome health agency · Ames, IA
- Suncrest Home HealthHome health agency · West Des Moines, IA
- Suncrest Hospice, LLCHospice · West Des Moines, IA
Industry payments (Open Payments)
- 2025$22.13 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Tandem Diabetes Care, Inc. | $22.13 | 1 |
What the 2025 payments were for
- Food and Beverage$22.13 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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