Marc L. Winter, MD
NPI 1891744157ActiveIndividual· Obstetrics & Gynecology· Laguna Hills, CA
Obstetrics & Gynecology (MD) in Laguna Hills, California, trained at University of California, Irvine, California College of Medicine (class of 1984). 87 Medicare patients in 2024, $27,844 paid; nearly all of their 260 Part D prescriptions were generic (91%). Intuitive Surgical, Inc. was the largest of 10 companies reporting payments in 2025, $61,067 in all, mostly education.
Overview
| NPI | 1891744157 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | May 6, 2006 |
| Last updated in NPPES | Oct 6, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | G55582 | 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 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Obstetrics/Gynecology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 87 |
|---|---|
| Services billed | 256 across 42 procedure codes |
| Paid by Medicare | $27,844 |
Part D prescriptions in 2024
| Prescriptions (claims) | 260 · 549 30-day fills |
|---|---|
| Patients | 85 |
| Total drug cost | $20,543 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | University of California, Irvine, California College of Medicine |
|---|---|
| Graduation year | 1984 |
| Medicare specialty | Obstetrics/Gynecology |
Medical group
- Hoag ClinicNewport Beach, CA · 460 clinicians
Hospital affiliations
- Hoag Memorial Hospital PresbyterianNewport Beach, CA
- Memorialcare Saddleback Medical CenterLaguna Hills, CA
Industry payments (Open Payments)
- 2025$61,067 · 78 payments from 10 companies
- 2024$102,361 · 137 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Intuitive Surgical, Inc. | $40,887 | 47 |
| Ethicon US, LLC | $13,738 | 4 |
| Cmr Surgical, Inc. | $2,957 | 4 |
| Medical Device Business Services, Inc. | $2,886 | 15 |
| Coopersurgical, Inc. | $222.28 | 3 |
What the 2025 payments were for
- Education$36,500 · 22 payments
- Consulting Fee$15,613 · 4 payments
- Travel and Lodging$7,355 · 26 payments
- Food and Beverage$1,599 · 26 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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