David Ryan Ambrosetti, D.O.
NPI 1154785327ActiveIndividual· Internal Medicine· Chattanooga, TN
Internal Medicine (D.O.) in Chattanooga, Tennessee, trained at Lake Erie College of Osteopathic Medicine, Erie (class of 2016). Their prescriptions cost Medicare Part D more than their services did: $541,631 for 3,115 claims, against $56,465 paid for services in 2024. Novo Nordisk Inc was the largest of 16 companies reporting payments in 2025, $1,135 in all, mostly food and beverage.
Overview
| NPI | 1154785327 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Apr 13, 2016 |
| Last updated in NPPES | Sep 4, 2026 |
| Certified by provider | Sep 4, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 3576 | TN |
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 (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 139 |
|---|---|
| Services billed | 1,239 across 44 procedure codes |
| Paid by Medicare | $56,465 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,115 · 6,469 30-day fills |
|---|---|
| Patients | 279 |
| Total drug cost | $541,631 |
| Generic share | 79% of claims |
Education and affiliations
| Medical school | Lake Erie College of Osteopathic Medicine, Erie |
|---|---|
| Graduation year | 2016 |
| Medicare specialty | Internal Medicine |
Medical groups
- Memorial Health Partners Foundation IncSyracuse, IN · 485 clinicians
- Champion Physical Therapy LLC HallsJohnson City, TN · 281 clinicians
Hospital affiliations
- Commonspirit-Memorial Hospital-North GeorgiaRinggold, GA
- Memorial Healthcare System, IncChattanooga, TN
Other facilities
- Commonspirit Health at Home - ChattanoogaHome health agency · Chattanooga, TN
- Tennessee Home HealthHome health agency · Cleveland, TN
Industry payments (Open Payments)
- 2025$1,135 · 58 payments from 16 companies
- 2024$1,068 · 57 payments from 17 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $332.56 | 13 |
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $189.68 | 10 |
| Lilly USA, LLC | $150.52 | 10 |
| Pfizer Inc. | $138.42 | 8 |
| Astrazeneca Pharmaceuticals LP | $52.35 | 3 |
What the 2025 payments were for
- Food and Beverage$1,135 · 58 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 240 internal medicine physicians in Chattanooga · All internal medicine physicians in Tennessee