Amber Messitt, DO
NPI 1306157730ActiveIndividual· Internal Medicine· Johnston, RI
Internal Medicine (DO) in Johnston, Rhode Island, trained at University of New England, College of Osteo Medicine (class of 2010). Their prescriptions cost Medicare Part D more than their services did: $86,627 for 3,588 claims, against $20,142 paid for services in 2024. Lilly USA, LLC was the largest of 3 companies reporting payments in 2025, $111.44 in all, mostly food and beverage.
Overview
| NPI | 1306157730 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | Yes |
| NPI issued | Jun 30, 2010 |
| Last updated in NPPES | Oct 9, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | DO00718 | RI |
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 - Internal Medicine (RI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 74 |
|---|---|
| Services billed | 270 across 12 procedure codes |
| Paid by Medicare | $20,142 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,588 · 8,115 30-day fills |
|---|---|
| Patients | 298 |
| Total drug cost | $86,627 |
| Generic share | 93% of claims |
Education and affiliations
| Medical school | University of New England, College of Osteo Medicine |
|---|---|
| Graduation year | 2010 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Ocean State Medical, LLCJohnston, RI · 6 clinicians
Hospital affiliations
- Our Lady of Fatima HospitalNorth Providence, RI
- Rhode Island HospitalProvidence, RI
- The Miriam HospitalProvidence, RI
Industry payments (Open Payments)
- 2025$111.44 · 5 payments from 3 companies
- 2024$225.55 · 9 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $55.63 | 2 |
| Inspire Medical Systems, Inc. | $37.85 | 2 |
| Abbvie Inc. | $17.96 | 1 |
What the 2025 payments were for
- Food and Beverage$111.44 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 24 internal medicine physicians in Johnston · All internal medicine physicians in Rhode Island