Patrick Zimmermann, M.D.
NPI 1194749218ActiveIndividual· Family Medicine· Collinsville, IL
Family Medicine (M.D.) in Collinsville, Illinois, trained at Southern Illinois University School of Medicine (class of 1978). Their prescriptions cost Medicare Part D more than their services did: $1,196,654 for 18,603 claims, against $37,753 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 8 companies reporting payments in 2025, $252.58 in all, mostly food and beverage.
Overview
| NPI | 1194749218 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jul 26, 2006 |
| Last updated in NPPES | Aug 28, 2024 |
| Certified by provider | Aug 28, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 036059275 | IL |
| Family Medicine, Adolescent Medicine | 207QA0000X | 036059275 | IL |
| Family Medicine, Adult Medicine | 207QA0505X | 036059275 | IL |
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 - Family Practice (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 278 |
|---|---|
| Services billed | 1,677 across 22 procedure codes |
| Paid by Medicare | $37,753 |
Part D prescriptions in 2024
| Prescriptions (claims) | 18,603 · 39,143 30-day fills |
|---|---|
| Patients | 1,005 |
| Total drug cost | $1,196,654 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | Southern Illinois University School of Medicine |
|---|---|
| Graduation year | 1978 |
| Medicare specialty | Family Practice |
Medical group
- Anderson Medical Group LLCBrambleton, VA · 136 clinicians
Hospital affiliations
- Anderson HospitalMaryville, IL
- Barnes Jewish HospitalSaint Louis, MO
- Community Hospital of StauntonStaunton, IL
Other facilities
- Adoration Home HealthHome health agency · O Fallon, IL
- Gateway Regional Home Health - Granite CityHome health agency · Granite City, IL
- Hospice of Southern Illinois, IncHospice · Belleville, IL
Industry payments (Open Payments)
- 2025$252.58 · 14 payments from 8 companies
- 2024$194.18 · 10 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $54.93 | 3 |
| Novo Nordisk Inc | $51.10 | 3 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $36.49 | 2 |
| Exact Sciences Corporation | $32.29 | 2 |
| Lilly USA, LLC | $26.61 | 1 |
What the 2025 payments were for
- Food and Beverage$252.58 · 14 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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