Diane M. Pfeifer, MD
NPI 1730183450ActiveIndividual· Specialist· Kokomo, IN
Specialist (MD) in Kokomo, Indiana, trained at Indiana University School of Medicine (class of 1995). Their prescriptions cost Medicare Part D more than their services did: $1,505,824 for 10,941 claims, against $90,114 paid for services in 2024. Pfizer Inc. was the largest of 3 companies reporting payments in 2025, $50.89 in all, mostly food and beverage.
Overview
| NPI | 1730183450 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 10, 2005 |
| Last updated in NPPES | Mar 22, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Specialist Primary | 174400000X | 01050142 | IN |
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 - Internal Medicine (IN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 494 |
|---|---|
| Services billed | 1,290 across 19 procedure codes |
| Paid by Medicare | $90,114 |
Part D prescriptions in 2024
| Prescriptions (claims) | 10,941 · 26,544 30-day fills |
|---|---|
| Patients | 701 |
| Total drug cost | $1,505,824 |
| Generic share | 84% of claims |
Education and affiliations
| Medical school | Indiana University School of Medicine |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | Internal Medicine |
Hospital affiliations
- Ascension St Vincent KokomoKokomo, IN
- Community Howard Regional Health Inc.Kokomo, IN
- Marion General HospitalMarion, IN
- Northwestern Medicine Central Dupage HospitalWinfield, IL
- Riverview HealthNoblesville, IN
Other facilities
- Ascension at HomeHome health agency · Pendleton, IN
- Elara CaringHome health agency · Kokomo, IN
Industry payments (Open Payments)
- 2025$50.89 · 3 payments from 3 companies
- 2024$127.60 · 7 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $18.84 | 1 |
| Astrazeneca Pharmaceuticals LP | $16.68 | 1 |
| Lilly USA, LLC | $15.37 | 1 |
What the 2025 payments were for
- Food and Beverage$50.89 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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