Catherine M. Tisdall, MD
NPI 1871556506ActiveIndividual· Dermatology· San Antonio, TX
Dermatology (MD) in San Antonio, Texas, trained at University of Washington School of Medicine (class of 2002). Their prescriptions cost Medicare Part D more than their services did: $365,382 for 563 claims, against $214,434 paid for services in 2024. Ucb, Inc. was the largest of 22 companies reporting payments in 2025, $2,709 in all, mostly food and beverage.
Overview
| NPI | 1871556506 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 12, 2006 |
| Last updated in NPPES | Oct 27, 2009 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dermatology Primary | 207N00000X | M5220 | TX |
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 - Dermatology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 425 |
|---|---|
| Services billed | 4,425 across 64 procedure codes |
| Paid by Medicare | $214,434 |
Part D prescriptions in 2024
| Prescriptions (claims) | 563 · 731 30-day fills |
|---|---|
| Patients | 251 |
| Total drug cost | $365,382 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | University of Washington School of Medicine |
|---|---|
| Graduation year | 2002 |
| Medicare specialty | Dermatology |
Medical group
- Stephen Miller MD PAHelotes, TX · 12 clinicians
Industry payments (Open Payments)
- 2025$2,709 · 106 payments from 22 companies
- 2024$1,968 · 83 payments from 21 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ucb, Inc. | $456.69 | 6 |
| Genzyme Corporation | $344.28 | 7 |
| Galderma Laboratories, L.P. | $307.14 | 23 |
| Janssen Scientific Affairs, LLC | $283.53 | 2 |
| Incyte Corporation | $198.30 | 12 |
What the 2025 payments were for
- Food and Beverage$2,709 · 106 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 142 dermatologists in San Antonio · All dermatologists in Texas