Catherine Elizabeth Dulak, M.D.
NPI 1356545271ActiveIndividual· Obstetrics & Gynecology, Gynecology· Corpus Christi, TX
Obstetrics & Gynecology, Gynecology (M.D.) in Corpus Christi, Texas, trained at University of Texas Medical School at Houston (class of 1986). Their prescriptions cost Medicare Part D more than their services did: $135,324 for 1,678 claims, against $43,152 paid for services in 2024. Mayne Pharma Commercial LLC was the largest of 2 companies reporting payments in 2025, $44.04 in all, mostly food and beverage.
Overview
| NPI | 1356545271 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jun 13, 2007 |
| Last updated in NPPES | Sep 30, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology, Gynecology Primary | 207VG0400X | H3309 | 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 - Obstetrics/Gynecology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 270 |
|---|---|
| Services billed | 715 across 24 procedure codes |
| Paid by Medicare | $43,152 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,678 · 2,732 30-day fills |
|---|---|
| Patients | 417 |
| Total drug cost | $135,324 |
| Generic share | 82% of claims |
Education and affiliations
| Medical school | University of Texas Medical School at Houston |
|---|---|
| Graduation year | 1986 |
| Medicare specialty | Obstetrics/Gynecology |
Hospital affiliation
- Christus Spohn Hospital Corpus ChristiCorpus Christi, TX
Industry payments (Open Payments)
- 2025$44.04 · 2 payments from 2 companies
- 2024$26.70 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Mayne Pharma Commercial LLC | $28.00 | 1 |
| Exeltis, USA Inc. | $16.04 | 1 |
What the 2025 payments were for
- Food and Beverage$44.04 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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