Kristen Marie Nassery, MD
NPI 1396059440ActiveIndividual· Surgery· Oceanside, CA
Surgery (MD) in Oceanside, California, trained at University of Louisville School of Medicine (class of 2011). 97 Medicare patients in 2024, $52,552 paid; nearly all of their 222 Part D prescriptions were generic (94%). Intuitive Surgical, Inc. was the largest of 3 companies reporting payments in 2025, $105.41 in all, mostly food and beverage.
Overview
| NPI | 1396059440 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jul 31, 2010 |
| Last updated in NPPES | Feb 1, 2023 |
| Certified by provider | Feb 1, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | A141260 | CA |
| Colon & Rectal Surgery | 208C00000X | A141260 | 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 - General Surgery (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 97 |
|---|---|
| Services billed | 271 across 44 procedure codes |
| Paid by Medicare | $52,552 |
Part D prescriptions in 2024
| Prescriptions (claims) | 222 · 224 30-day fills |
|---|---|
| Patients | 71 |
| Total drug cost | $3,728 |
| Generic share | 94% of claims |
Education and affiliations
| Medical school | University of Louisville School of Medicine |
|---|---|
| Graduation year | 2011 |
| Medicare specialty | General Surgery |
| Secondary specialties | Colorectal Surgery (Proctology) |
Hospital affiliations
- Scripps Memorial Hospital - EncinitasEncinitas, CA
- Tri-City Medical CenterOceanside, CA
Industry payments (Open Payments)
- 2025$105.41 · 3 payments from 3 companies
- 2024$272.74 · 7 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Intuitive Surgical, Inc. | $75.59 | 1 |
| Ethicon US, LLC | $15.71 | 1 |
| Biotissue Holdings Inc. | $14.11 | 1 |
What the 2025 payments were for
- Food and Beverage$105.41 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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