Jaroslav Zivny, M.D.
NPI 1144203076ActiveIndividual· Internal Medicine, Gastroenterology· Worcester, MA
Internal Medicine, Gastroenterology (M.D.) with Umass Memorial Medical Group Inc and 1 other group, practicing in Worcester, Massachusetts. 398 Medicare patients in 2024, $114,375 paid; nearly all of their 360 Part D prescriptions were generic (92%). Olympus Medical Systems Corporation was the largest of 4 companies reporting payments in 2025, $4,179 in all, mostly consulting fees. Lists Lakeland Regional Medical Center and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1144203076 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Nov 23, 2005 |
| Last updated in NPPES | Oct 28, 2020 |
| Certified by provider | Oct 28, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 209607 | MA |
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 (FL); Practitioner - Gastroenterology (MA); Practitioner - Gastroenterology (ME); Practitioner - Gastroenterology (NH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 398 |
|---|---|
| Services billed | 895 across 66 procedure codes |
| Paid by Medicare | $114,375 |
Part D prescriptions in 2024
| Prescriptions (claims) | 360 · 577 30-day fills |
|---|---|
| Patients | 205 |
| Total drug cost | $19,399 |
| Generic share | 92% of claims |
Education and affiliations
| Graduation year | 1995 |
|---|---|
| Medicare specialty | Gastroenterology |
Medical groups
- Umass Memorial Medical Group IncWorcester, MA · 2,516 clinicians
- Mainegeneral Medical CenterWaterville, ME · 555 clinicians
Hospital affiliations
- Lakeland Regional Medical CenterLakeland, FL
- Marlborough HospitalMarlborough, MA
- Milford Regional Medical CenterMilford, MA
- Umass Memorial Healthalliance HospitalsLeominster, MA
- Umass Memorial Medical Center/University CampusWorcester, MA
Industry payments (Open Payments)
- 2025$4,179 · 10 payments from 4 companies
- 2024$708.67 · 4 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Olympus Medical Systems Corporation | $3,565 | 2 |
| Boston Scientific Corporation | $399.32 | 6 |
| Merit Medical Systems Inc | $198.75 | 1 |
| Abbvie Inc. | $16.18 | 1 |
What the 2025 payments were for
- Consulting Fee$3,565 · 2 payments
- Food and Beverage$614.25 · 8 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 54 gastroenterologists in Worcester · All gastroenterologists in Massachusetts