Raymond Zimmerman, M.D.
NPI 1386602100ActiveIndividual· Family Medicine· Merrillville, IN
Family Medicine (M.D.) in Merrillville, Indiana, trained at Indiana University School of Medicine (class of 1985). Their prescriptions cost Medicare Part D more than their services did: $860,325 for 7,706 claims, against $79,533 paid for services in 2024. Lilly USA, LLC was the largest of 13 companies reporting payments in 2025, $578.32 in all, mostly food and beverage.
Overview
| NPI | 1386602100 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 2, 2006 |
| Last updated in NPPES | Jan 8, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 01035397A | IN |
| Family Medicine | 207Q00000X | 036-081831 | IL |
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 - Family Practice (IL); Practitioner - Family Practice (IN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 301 |
|---|---|
| Services billed | 1,455 across 39 procedure codes |
| Paid by Medicare | $79,533 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,706 · 17,799 30-day fills |
|---|---|
| Patients | 533 |
| Total drug cost | $860,325 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | Indiana University School of Medicine |
|---|---|
| Graduation year | 1985 |
| Medicare specialty | Family Practice |
| Secondary specialties | Emergency Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Chesterton Physical Therapy IncChesterton, IN · 186 clinicians
- Suresh D. Reddy, MD, LLCMerrillville, IN · 3 clinicians
Hospital affiliations
- Community HospitalMunster, IN
- Franciscan Health Crown PointCrown Point, IN
- Franciscan Health DyerDyer, IN
- Methodist Hospitals IncGary, IN
- St Mary Medical Center IncHobart, IN
Other facilities
- Elara CaringHome health agency · Valparaiso, IN
- Franciscan Home CareHome health agency · Hobart, IN
- Powers Home Health ServicesHome health agency · Hobart, IN
- Powers Health Rehabilitation CenterInpatient rehabilitation facility · Crown Point, IN
Industry payments (Open Payments)
- 2025$578.32 · 24 payments from 13 companies
- 2024$407.85 · 18 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $122.61 | 4 |
| Pfizer Inc. | $77.74 | 4 |
| Abbvie Inc. | $71.09 | 3 |
| Exact Sciences Corporation | $69.45 | 3 |
| Boston Scientific Corporation | $47.62 | 1 |
What the 2025 payments were for
- Food and Beverage$533.32 · 23 payments
- Education$45.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 55 family medicine physicians in Merrillville · All family medicine physicians in Indiana