Amanda Sullivan, DO
NPI 1124557863ActiveIndividual· Internal Medicine, Gastroenterology· Littleton, CO
Internal Medicine, Gastroenterology (DO) in Littleton, Colorado, trained at University of Pikeville, Kentucky College of Osteopathic Med (class of 2017). In 2024 Medicare paid $42,051 for 173 patients, and Part D covered 144 of their prescriptions, 86% of them generic. Abbvie Inc. was the largest of 16 companies reporting payments in 2025, $1,315 in all, mostly food and beverage.
Overview
| NPI | 1124557863 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Jun 7, 2017 |
| Last updated in NPPES | Apr 12, 2023 |
| Certified by provider | Mar 22, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | DR.0063937 | CO |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 - Gastroenterology (CO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 173 |
|---|---|
| Services billed | 953 across 28 procedure codes |
| Paid by Medicare | $42,051 |
Part D prescriptions in 2024
| Prescriptions (claims) | 144 · 242 30-day fills |
|---|---|
| Patients | 73 |
| Total drug cost | $32,981 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | University of Pikeville, Kentucky College of Osteopathic Med |
|---|---|
| Graduation year | 2017 |
| Medicare specialty | Gastroenterology |
Medical group
- Rocky Mountain Gastroenterology Associates, PLLCThornton, CO · 36 clinicians
Hospital affiliation
- Adventhealth LittletonLittleton, CO
Industry payments (Open Payments)
- 2025$1,315 · 63 payments from 16 companies
- 2024$974.65 · 48 payments from 21 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $182.01 | 11 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $165.72 | 8 |
| Gilead Sciences, Inc. | $161.19 | 8 |
| Pfizer Inc. | $119.92 | 7 |
| Madrigal Pharmaceuticals | $117.78 | 4 |
What the 2025 payments were for
- Food and Beverage$1,315 · 63 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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