Marc Sizemore, FNP
NPI 1043419138ActiveIndividual· Nurse Practitioner, Family· Visalia, CA
Nurse Practitioner, Family (FNP) with Immediate Care Medical Group Inc., practicing in Visalia, California. Their prescriptions cost Medicare Part D more than their services did: $298,862 for 3,515 claims, against $83,540 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 7 companies reporting payments in 2025, $266.59 in all, mostly food and beverage. Lists Kaweah Health Medical Center as a hospital affiliation.
Overview
| NPI | 1043419138 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | FNP |
| Sole proprietor | No |
| NPI issued | Jul 17, 2007 |
| Last updated in NPPES | Dec 1, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | 17384 | CA |
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 (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 479 |
|---|---|
| Services billed | 1,840 across 54 procedure codes |
| Paid by Medicare | $83,540 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,515 · 6,555 30-day fills |
|---|---|
| Patients | 412 |
| Total drug cost | $298,862 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 2007 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Immediate Care Medical Group Inc.Visalia, CA · 6 clinicians
Hospital affiliation
- Kaweah Health Medical CenterVisalia, CA
Other facilities
- California Home HealthHome health agency · Fresno, CA
- Kaweah Health Home HealthHome health agency · Visalia, CA
- Seva Home HealthHome health agency · Porterville, CA
Industry payments (Open Payments)
- 2025$266.59 · 14 payments from 7 companies
- 2024$680.20 · 36 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $85.50 | 5 |
| Otsuka America Pharmaceutical, Inc. | $48.11 | 2 |
| Lilly USA, LLC | $35.01 | 2 |
| Novo Nordisk Inc | $33.57 | 2 |
| Abbott Laboratories | $26.50 | 1 |
What the 2025 payments were for
- Food and Beverage$266.59 · 14 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 127 family nurse practitioners in Visalia · All family nurse practitioners in California