Sigrid Johannesen Ringenberg, MD
NPI 1265812614ActiveIndividual· Thoracic Surgery (Cardiothoracic Vascular Surgery)· Nashville, TN
Thoracic Surgery (Cardiothoracic Vascular Surgery) (MD) in Nashville, Tennessee, trained at University of Oklahoma College of Medicine (class of 2015). Mostly services rather than prescriptions: Medicare paid $86,934 for 111 patients in 2024, with only 47 Part D claims. Ethicon US, LLC was the largest of 8 companies reporting payments in 2025, $9,731 in all, mostly consulting fees.
Overview
| NPI | 1265812614 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jun 1, 2015 |
| Last updated in NPPES | Apr 19, 2023 |
| Certified by provider | Apr 19, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Thoracic Surgery (Cardiothoracic Vascular Surgery) Primary | 208G00000X | 61287 | TN |
| Surgery | 208600000X | U3254 | TX |
| Surgery | 208600000X | 31536 | OK |
| Surgery | 208600000X | 61287 | TN |
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 - Thoracic Surgery (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 111 |
|---|---|
| Services billed | 310 across 66 procedure codes |
| Paid by Medicare | $86,934 |
Part D prescriptions in 2024
| Prescriptions (claims) | 47 · 57 30-day fills |
|---|---|
| Patients | 27 |
| Total drug cost | $1,487 |
| Generic share | 94% of claims |
Education and affiliations
| Medical school | University of Oklahoma College of Medicine |
|---|---|
| Graduation year | 2015 |
| Medicare specialty | Thoracic Surgery |
| Telehealth | Offers telehealth |
Medical group
- Healthtexas Provider NetworkWaxahachie, TX · 2,697 clinicians
Hospital affiliation
- Baylor University Medical CenterDallas, TX
Industry payments (Open Payments)
- 2025$9,731 · 21 payments from 8 companies
- 2024$2,748 · 16 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ethicon US, LLC | $7,773 | 6 |
| Medical Device Business Services, Inc. | $1,146 | 5 |
| Intuitive Surgical, Inc. | $653.29 | 3 |
| Davol Inc. | $61.59 | 2 |
| Kls-Martin L.P. | $38.99 | 2 |
What the 2025 payments were for
- Consulting Fee$7,703 · 3 payments
- Travel and Lodging$1,491 · 6 payments
- Food and Beverage$538.13 · 12 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Thoracic Surgery (Cardiothoracic Vascular Surgery) providers in Nashville
- 1942278056
- 1669453304
- 1992009500
- 1063698637
- 1700856119
- 1578647681
- 1326021064
- 1598866840
- 1942467642
- 1487757605
- 1003090424
- 1346337474
All Thoracic Surgery (Cardiothoracic Vascular Surgery) providers in Tennessee →