Alexandra Kay Probst, PA-C
NPI 1417271883ActiveIndividual· Physician Assistant· Houston, TX
Physician Assistant (PA-C) with Physicians Referral Service, practicing in Houston, Texas. Their prescriptions cost Medicare Part D more than their services did: $1,738,061 for 487 claims, against $12,992 paid for services in 2024. Autolus Inc was the largest of 16 companies reporting payments in 2025, $6,738 in all, mostly honoraria.
Overview
| NPI | 1417271883 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Mar 15, 2010 |
| Last updated in NPPES | Feb 28, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | PA06667 | 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 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 - Physician Assistant (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 85 |
|---|---|
| Services billed | 302 across 6 procedure codes |
| Paid by Medicare | $12,992 |
Part D prescriptions in 2024
| Prescriptions (claims) | 487 · 609 30-day fills |
|---|---|
| Patients | 94 |
| Total drug cost | $1,738,061 |
| Generic share | 67% of claims |
Education and affiliations
| Graduation year | 2009 |
|---|---|
| Medicare specialty | Physician Assistant |
| Telehealth | Offers telehealth |
Medical group
- Physicians Referral ServiceHouston, TX · 2,765 clinicians
Industry payments (Open Payments)
- 2025$6,738 · 33 payments from 16 companies
- 2024$1,188 · 29 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Autolus Inc | $4,260 | 5 |
| Astrazeneca Pharmaceuticals LP | $1,433 | 2 |
| Abbvie Inc. | $315.80 | 4 |
| Adaptive Biotechnologies Corporation | $157.43 | 2 |
| Celgene Corporation | $101.65 | 4 |
What the 2025 payments were for
- Honoraria$2,775 · 2 payments
- Consulting Fee$1,400 · 1 payment
- Food and Beverage$1,340 · 28 payments
- Travel and Lodging$1,223 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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