Joanne Lynn Alonzo, D.O.
NPI 1124349246ActiveIndividual· Internal Medicine· Warren, MI
Internal Medicine (D.O.) in Warren, Michigan, trained at Kansas City University of Physicians and Surgeons (class of 2010). Their prescriptions cost Medicare Part D more than their services did: $1,003,035 for 4,289 claims, against $246,861 paid for services in 2024. Abbott Laboratories was the largest of 2 companies reporting payments in 2025, $303.35 in all, mostly food and beverage.
Overview
| NPI | 1124349246 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | Yes |
| NPI issued | Jun 14, 2010 |
| Last updated in NPPES | Jun 14, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 5101018832 | MI |
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 - Cardiovascular Disease (Cardiology) (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 2,892 |
|---|---|
| Services billed | 6,597 across 53 procedure codes |
| Paid by Medicare | $246,861 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,289 · 11,512 30-day fills |
|---|---|
| Patients | 703 |
| Total drug cost | $1,003,035 |
| Generic share | 82% of claims |
Education and affiliations
| Medical school | Kansas City University of Physicians and Surgeons |
|---|---|
| Graduation year | 2010 |
| Medicare specialty | Cardiovascular Disease (Cardiology) |
Medical group
- Enloe Medical CenterChico, CA · 333 clinicians
Hospital affiliations
- Adventist Health ClearlakeClearlake, CA
- Enloe HealthChico, CA
- Orchard HospitalGridley, CA
- Oroville HospitalOroville, CA
- St Elizabeth Community HospitalRed Bluff, CA
Industry payments (Open Payments)
- 2025$303.35 · 8 payments from 2 companies
- 2024$467.54 · 7 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbott Laboratories | $197.65 | 7 |
| E.R. Squibb & Sons, L.L.C. | $105.70 | 1 |
What the 2025 payments were for
- Food and Beverage$303.35 · 8 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 135 internal medicine physicians in Warren · All internal medicine physicians in Michigan