Joseph James Merchant, M.D.
NPI 1699765826ActiveIndividual· Internal Medicine, Hematology & Oncology· Ames, IA
Internal Medicine, Hematology & Oncology (M.D.) in Ames, Iowa, trained at University of Iowa, Rj & L Carver College of Medicine (class of 1993). In 2024 Medicare paid $4,895,880 for 963 patients, and Part D covered 5,210 of their prescriptions, 85% of them generic. Genentech, Inc. reported $53.45 in payments in 2025, mostly education.
Overview
| NPI | 1699765826 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Oct 27, 2005 |
| Last updated in NPPES | Nov 16, 2020 |
| Certified by provider | Nov 16, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 31094 | IA |
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 - Hematology/Oncology (IA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 963 |
|---|---|
| Services billed | 316,956 across 243 procedure codes |
| Paid by Medicare | $4,895,880 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,210 · 7,367 30-day fills |
|---|---|
| Patients | 544 |
| Total drug cost | $5,518,670 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | University of Iowa, Rj & L Carver College of Medicine |
|---|---|
| Graduation year | 1993 |
| Medicare specialty | Hematology/Oncology |
Medical group
- McFarland Clinic PCAmes, IA · 363 clinicians
Hospital affiliations
- Boone County HospitalBoone, IA
- Dallas County HospitalPerry, IA
- Greene County Medical CenterJefferson, IA
- Mary Greeley Medical CenterAmes, IA
- Unitypoint Health - MarshalltownMarshalltown, IA
Other facilities
- Iowa River HospiceHospice · Marshalltown, IA
- Mary Greeley Hospice ServicesHospice · Ames, IA
Industry payments (Open Payments)
- 2025$53.45 · 1 payment from 1 company
- 2024$15.00 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Genentech, Inc. | $53.45 | 1 |
What the 2025 payments were for
- Education$53.45 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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