Rebecca Sue Gruchalla, MD PHD
NPI 1023087517ActiveIndividual· Internal Medicine, Allergy & Immunology· Dallas, TX
Internal Medicine, Allergy & Immunology (MD PHD) in Dallas, Texas, trained at University of Texas Southwestern Medical School at Dallas (class of 1985). Their prescriptions cost Medicare Part D more than their services did: $167,525 for 227 claims, against $11,464 paid for services in 2024. Astrazeneca Pharmaceuticals LP reported $104.22 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1023087517 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD PHD |
| Sole proprietor | No |
| NPI issued | Mar 16, 2006 |
| Last updated in NPPES | Jan 31, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Allergy & Immunology Primary | 207RA0201X | H5240 | TX |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Allergy/Immunology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 100 |
|---|---|
| Services billed | 505 across 14 procedure codes |
| Paid by Medicare | $11,464 |
Part D prescriptions in 2024
| Prescriptions (claims) | 227 · 389 30-day fills |
|---|---|
| Patients | 53 |
| Total drug cost | $167,525 |
| Generic share | 71% of claims |
Education and affiliations
| Medical school | University of Texas Southwestern Medical School at Dallas |
|---|---|
| Graduation year | 1985 |
| Medicare specialty | Allergy/Immunology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- University of Texas Southwestern Medical Center at DallasDallas, TX · 3,187 clinicians
Hospital affiliations
Industry payments (Open Payments)
- 2025$104.22 · 1 payment from 1 company
- 2024$101.29 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $104.22 | 1 |
What the 2025 payments were for
- Food and Beverage$104.22 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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