John H. Stasiewicz, MD
NPI 1033100482ActiveIndividual· Family Medicine· Irvine, CA
Family Medicine (MD) in Irvine, California, trained at Medical College of Wisconsin (class of 1970). Their prescriptions cost Medicare Part D more than their services did: $260,349 for 5,153 claims, against $27,908 paid for services in 2024. Novo Nordisk Inc was the largest of 18 companies reporting payments in 2025, $1,967 in all, mostly food and beverage.
Overview
| NPI | 1033100482 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 3, 2005 |
| Last updated in NPPES | Oct 13, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | G21256 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Family Practice (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 169 |
|---|---|
| Services billed | 641 across 35 procedure codes |
| Paid by Medicare | $27,908 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,153 · 11,726 30-day fills |
|---|---|
| Patients | 489 |
| Total drug cost | $260,349 |
| Generic share | 93% of claims |
Education and affiliations
| Medical school | Medical College of Wisconsin |
|---|---|
| Graduation year | 1970 |
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical group
- Memorialcare Medical FoundationLong Beach, CA · 566 clinicians
Hospital affiliations
- Hoag Memorial Hospital PresbyterianNewport Beach, CA
- Memorialcare Orange Coast Medical CenterFountain Valley, CA
- Memorialcare Saddleback Medical CenterLaguna Hills, CA
Other facilities
- Hoag Home HealthHome health agency · Newport Beach, CA
Industry payments (Open Payments)
- 2025$1,967 · 81 payments from 18 companies
- 2024$1,879 · 83 payments from 17 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $324.36 | 13 |
| Lilly USA, LLC | $292.89 | 12 |
| Astrazeneca Pharmaceuticals LP | $208.84 | 8 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $176.26 | 8 |
| Merck Sharp & Dohme LLC | $157.99 | 8 |
What the 2025 payments were for
- Food and Beverage$1,967 · 81 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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