Ellen Ablog Dy, M.D.
NPI 1053317578ActiveIndividual· Internal Medicine, Gastroenterology· Grand Junction, CO
Internal Medicine, Gastroenterology (M.D.) in Grand Junction, Colorado, trained at Indiana University School of Medicine (class of 1988). 405 Medicare patients in 2024, $77,351 paid; nearly all of their 330 Part D prescriptions were generic (97%). Lilly USA, LLC was the largest of 14 companies reporting payments in 2025, $1,195 in all, mostly food and beverage.
Overview
| NPI | 1053317578 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 21, 2005 |
| Last updated in NPPES | Aug 24, 2026 |
| Certified by provider | Aug 24, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | DR.0058821 | CO |
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 (CO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 405 |
|---|---|
| Services billed | 617 across 25 procedure codes |
| Paid by Medicare | $77,351 |
Part D prescriptions in 2024
| Prescriptions (claims) | 330 · 525 30-day fills |
|---|---|
| Patients | 99 |
| Total drug cost | $94,618 |
| Generic share | 97% of claims |
Education and affiliations
| Medical school | Indiana University School of Medicine |
|---|---|
| Graduation year | 1988 |
| Medicare specialty | Gastroenterology |
Medical group
- Grand Junction Gastroenterology PLLCGrand Junction, CO · 11 clinicians
Hospital affiliations
- Community HospitalGrand Junction, CO
- Intermountain Health St. Mary's Regional HospitalGrand Junction, CO
Industry payments (Open Payments)
- 2025$1,195 · 40 payments from 14 companies
- 2024$1,135 · 48 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $230.50 | 6 |
| Abbvie Inc. | $202.80 | 11 |
| Madrigal Pharmaceuticals | $178.09 | 3 |
| Genzyme Corporation | $139.28 | 1 |
| Takeda Pharmaceuticals U.S.A., Inc. | $125.10 | 4 |
What the 2025 payments were for
- Food and Beverage$1,195 · 40 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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