Ervin Y. Eaker, M.D.
NPI 1427007764ActiveIndividual· Internal Medicine, Gastroenterology· Shawnee, KS
Internal Medicine, Gastroenterology (M.D.) in Shawnee, Kansas, trained at University of Florida College of Medicine (class of 1981). Their prescriptions cost Medicare Part D more than their services did: $673,490 for 814 claims, against $252,847 paid for services in 2024. Abbvie Inc. was the largest of 13 companies reporting payments in 2025, $1,906 in all, mostly food and beverage.
Overview
| NPI | 1427007764 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 5, 2006 |
| Last updated in NPPES | Oct 2, 2025 |
| Certified by provider | Oct 2, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 04-26513 | KS |
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 - Gastroenterology (KS); Practitioner - Gastroenterology (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 684 |
|---|---|
| Services billed | 14,257 across 53 procedure codes |
| Paid by Medicare | $252,847 |
Part D prescriptions in 2024
| Prescriptions (claims) | 814 · 1,262 30-day fills |
|---|---|
| Patients | 243 |
| Total drug cost | $673,490 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | University of Florida College of Medicine |
|---|---|
| Graduation year | 1981 |
| Medicare specialty | Gastroenterology |
Medical group
- Prime Healthcare Physician Services - Providence IncLeavenworth, KS · 51 clinicians
Hospital affiliations
- Overland Park Reg Med CtrOverland Park, KS
- Providence Medical CenterKansas City, KS
- Saint John HospitalLeavenworth, KS
Industry payments (Open Payments)
- 2025$1,906 · 95 payments from 13 companies
- 2024$2,245 · 120 payments from 17 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $426.17 | 27 |
| Janssen Biotech, Inc. | $351.90 | 15 |
| Takeda Pharmaceuticals U.S.A., Inc. | $277.02 | 15 |
| Lilly USA, LLC | $217.47 | 10 |
| Pfizer Inc. | $206.76 | 12 |
What the 2025 payments were for
- Food and Beverage$1,906 · 95 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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