John Sizemore, MSN AG-ACNP
NPI 1629649314ActiveIndividual· Nurse Practitioner, Gerontology· Greenwood, IN
Nurse Practitioner, Gerontology (MSN AG-ACNP) in Greenwood, Indiana, trained at Indiana Medical College, School of Medicine of Purdue University (class of 2021). Medicare paid $28,169 for services to 268 patients in 2024. Pfizer Inc. reported $15.85 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1629649314 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MSN AG-ACNP |
| Sole proprietor | No |
| NPI issued | Jul 5, 2021 |
| Last updated in NPPES | Jan 14, 2022 |
| Certified by provider | Jan 14, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Gerontology Primary | 363LG0600X | 71011422A | IN |
| Nurse Practitioner, Acute Care | 363LA2100X | 71011422A | IN |
| Clinical Nurse Specialist, Gerontology | 364SG0600X | 71011422A | IN |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nurse Practitioner (IN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 268 |
|---|---|
| Services billed | 281 across 7 procedure codes |
| Paid by Medicare | $28,169 |
Education and affiliations
| Medical school | Indiana Medical College, School of Medicine of Purdue University |
|---|---|
| Graduation year | 2021 |
| Medicare specialty | Nurse Practitioner |
Medical group
- St Francis Medical Group LLCGreenwood, IN · 110 clinicians
Hospital affiliations
- Franciscan Health IndianapolisIndianapolis, IN
- Franciscan Health MooresvilleMooresville, IN
- Johnson Memorial HospitalFranklin, IN
- Major HospitalShelbyville, IN
- Monroe HospitalBloomington, IN
Industry payments (Open Payments)
- 2025$15.85 · 1 payment from 1 company
- 2024$41.72 · 3 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $15.85 | 1 |
What the 2025 payments were for
- Food and Beverage$15.85 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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