Alexandra Gabrielle Hahn Waldenmaier, MD
NPI 1871029207ActiveIndividual· Surgery, Surgical Critical Care· Dallas, TX
Surgery, Surgical Critical Care (MD) in Dallas, Texas, trained at Tulane University School of Medicine (class of 2017). Mostly services rather than prescriptions: Medicare paid $51,185 for 235 patients in 2024, with only 15 Part D claims. Ethicon US, LLC was the largest of 4 companies reporting payments in 2025, $102.01 in all, mostly food and beverage.
Overview
| NPI | 1871029207 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 4, 2017 |
| Last updated in NPPES | Nov 1, 2023 |
| Certified by provider | Nov 1, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery, Surgical Critical Care Primary | 2086S0102X | U3865 | TX |
| Surgery | 208600000X | BP10078047 | TX |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 - General Surgery (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 235 |
|---|---|
| Services billed | 519 across 50 procedure codes |
| Paid by Medicare | $51,185 |
Part D prescriptions in 2024
| Prescriptions (claims) | 15 · 15 30-day fills |
|---|---|
| Patients | 15 |
| Total drug cost | $70.44 |
| Generic share | 100% of claims |
Education and affiliations
| Medical school | Tulane University School of Medicine |
|---|---|
| Graduation year | 2017 |
| Medicare specialty | General Surgery |
Medical group
- Texas Health Physicians GroupFort Worth, TX · 1,365 clinicians
Hospital affiliations
- Texas Health Presbyterian Hospital DallasDallas, TX
- Texas Health Presbyterian Hospital KaufmanKaufman, TX
- Texas Health Presbyterian Hospital RockwallRockwall, TX
Industry payments (Open Payments)
- 2025$102.01 · 5 payments from 4 companies
- 2024$3,425 · 14 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ethicon US, LLC | $37.41 | 2 |
| Octapharma USA, Inc. | $22.88 | 1 |
| Acera Surgical, Inc. | $22.57 | 1 |
| Avita Medical Americas, LLC | $19.15 | 1 |
What the 2025 payments were for
- Food and Beverage$102.01 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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