Mariana Isabel Chavez, M.D.
NPI 1265787550ActiveIndividual· Surgery, Surgical Oncology· Nashville, TN
Surgery, Surgical Oncology (M.D.) with Tennessee Oncology PLLC, practicing in Nashville, Tennessee. In 2024 Medicare paid $96,048 for 170 patients, and Part D covered 265 of their prescriptions, 86% of them generic. Intuitive Surgical, Inc. was the largest of 8 companies reporting payments in 2025, $4,096 in all, mostly travel and lodging. Lists Ascension Saint Thomas Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1265787550 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 23, 2012 |
| Last updated in NPPES | Feb 10, 2026 |
| Certified by provider | Feb 10, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery, Surgical Oncology Primary | 2086X0206X | MD58628 | TN |
| Surgery | 208600000X | 58628 | 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 - Surgical Oncology (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 170 |
|---|---|
| Services billed | 384 across 77 procedure codes |
| Paid by Medicare | $96,048 |
Part D prescriptions in 2024
| Prescriptions (claims) | 265 · 366 30-day fills |
|---|---|
| Patients | 108 |
| Total drug cost | $36,170 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 2009 |
|---|---|
| Medicare specialty | Surgical Oncology |
| Telehealth | Offers telehealth |
Medical group
- Tennessee Oncology PLLCNashville, TN · 358 clinicians
Hospital affiliations
- Ascension Saint Thomas HospitalNashville, TN
- Tristar Centennial Medical CenterNashville, TN
Industry payments (Open Payments)
- 2025$4,096 · 29 payments from 8 companies
- 2024$1,601 · 15 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Intuitive Surgical, Inc. | $3,064 | 19 |
| Histosonics, Inc. | $713.97 | 2 |
| Smith+nephew, Inc. | $124.05 | 2 |
| Boston Scientific Corporation | $89.78 | 1 |
| Innovation Technologies Inc | $48.47 | 2 |
What the 2025 payments were for
- Travel and Lodging$1,944 · 9 payments
- Food and Beverage$1,152 · 19 payments
- Education$1,000 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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