Chris C. Naum, MD
NPI 1215938451ActiveIndividual· Internal Medicine, Critical Care Medicine· Indianapolis, IN
Internal Medicine, Critical Care Medicine (MD) in Indianapolis, Indiana, trained at Indiana University School of Medicine (class of 1983). Their prescriptions cost Medicare Part D more than their services did: $1,543,693 for 1,941 claims, against $30,647 paid for services in 2024. Genzyme Corporation was the largest of 11 companies reporting payments in 2025, $614.25 in all, mostly food and beverage.
Overview
| NPI | 1215938451 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 10, 2005 |
| Last updated in NPPES | Mar 5, 2025 |
| Certified by provider | Mar 5, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Critical Care Medicine Primary | 207RC0200X | 01034864A | IN |
| Internal Medicine | 207R00000X | 01034864A | IN |
| Internal Medicine, Pulmonary Disease | 207RP1001X | 01034864 | IN |
| Internal Medicine, Pulmonary Disease | 207RP1001X | 01034864A | IN |
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 - Pulmonary Disease (IN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 191 |
|---|---|
| Services billed | 404 across 28 procedure codes |
| Paid by Medicare | $30,647 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,941 · 2,867 30-day fills |
|---|---|
| Patients | 282 |
| Total drug cost | $1,543,693 |
| Generic share | 28% of claims |
Education and affiliations
| Medical school | Indiana University School of Medicine |
|---|---|
| Graduation year | 1983 |
| Medicare specialty | Pulmonary Disease |
| Secondary specialties | Critical Care (Intensivists), Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Iu Health Medical Group LLCIndianapolis, IN · 4,462 clinicians
Hospital affiliations
- Indiana University HealthIndianapolis, IN
- Indiana University Health Bloomington HospitalBloomington, IN
- Indiana University Health North HospitalCarmel, IN
- Iu Health West HospitalAvon, IN
Industry payments (Open Payments)
- 2025$614.25 · 25 payments from 11 companies
- 2024$163.61 · 7 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Genzyme Corporation | $112.08 | 4 |
| Regeneron Healthcare Solutions, Inc. | $111.53 | 4 |
| Takeda Pharmaceuticals U.S.A., Inc. | $110.82 | 4 |
| Astrazeneca Pharmaceuticals LP | $65.93 | 3 |
| Insmed, Inc. | $59.44 | 3 |
What the 2025 payments were for
- Food and Beverage$614.25 · 25 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 83 critical care physicians in Indianapolis · All critical care physicians in Indiana