Karolina Natalia Dziadkowiec, MD
NPI 1194229716ActiveIndividual· Internal Medicine, Gastroenterology· San Antonio, TX
Internal Medicine, Gastroenterology (MD) with Community Medicine Associates, practicing in San Antonio, Texas. Their prescriptions cost Medicare Part D more than their services did: $53,582 for 53 claims, against $2,528 paid for services in 2024. Janssen Biotech, Inc. was the largest of 13 companies reporting payments in 2025, $3,538 in all, mostly food and beverage. Lists University Health System as a hospital affiliation.
Overview
| NPI | 1194229716 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Mar 19, 2018 |
| Last updated in NPPES | Sep 9, 2026 |
| Certified by provider | Sep 9, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | U9900 | 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 - Gastroenterology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 15 |
|---|---|
| Services billed | 23 across 11 procedure codes |
| Paid by Medicare | $2,528 |
Part D prescriptions in 2024
| Prescriptions (claims) | 53 · 63 30-day fills |
|---|---|
| Patients | 16 |
| Total drug cost | $53,582 |
| Generic share | 79% of claims |
Education and affiliations
| Graduation year | 2017 |
|---|---|
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
Medical group
- Community Medicine AssociatesSan Antonio, TX · 605 clinicians
Hospital affiliation
- University Health SystemSan Antonio, TX
Industry payments (Open Payments)
- 2025$3,538 · 57 payments from 13 companies
- 2024$2,052 · 27 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $1,099 | 26 |
| Madrigal Pharmaceuticals | $820.92 | 7 |
| Ipsen Biopharmaceuticals, Inc | $466.11 | 8 |
| Mirum Pharmaceuticals, Inc. | $291.63 | 2 |
| Ardelyx, Inc. | $181.73 | 3 |
What the 2025 payments were for
- Food and Beverage$3,538 · 57 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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