Stephen Hryniewicki, M.D.
NPI 1598871741ActiveIndividual· Internal Medicine· Long Beach, CA
Internal Medicine (M.D.) in Long Beach, California, licensed in CA, with an NPI issued in August 2006. Their prescriptions cost Medicare Part D more than their services did: $570,947 for 4,813 claims, against $133,426 paid for services in 2024. Exact Sciences Corporation was the largest of 6 companies reporting payments in 2025, $198.98 in all, mostly food and beverage.
Overview
| NPI | 1598871741 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 21, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | G45594 | CA |
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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 327 |
|---|---|
| Services billed | 1,353 across 20 procedure codes |
| Paid by Medicare | $133,426 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,813 · 10,349 30-day fills |
|---|---|
| Patients | 372 |
| Total drug cost | $570,947 |
| Generic share | 85% of claims |
Industry payments (Open Payments)
- 2025$198.98 · 7 payments from 6 companies
- 2024$646.70 · 25 payments from 13 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Exact Sciences Corporation | $61.70 | 2 |
| Sumitomo Pharma America, Inc. | $35.34 | 1 |
| Astrazeneca Pharmaceuticals LP | $30.22 | 1 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $26.17 | 1 |
| Lilly USA, LLC | $23.50 | 1 |
What the 2025 payments were for
- Food and Beverage$198.98 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other internal medicine physicians in Long Beach
- 1023024346
- 1023193125
- 1033537493
- 1073776191
- 1104186964
- 1114940145
- 1134233158
- 1164528105
- 1174535017
- 1205881091
- 1255338406
- 1255425146
All 298 internal medicine physicians in Long Beach · All internal medicine physicians in California