Julie A. Wissink, M.D.
NPI 1386738623ActiveIndividual· Internal Medicine· Palo Alto, CA
Opted out of Medicare from February 2016 to February 2028. Internal Medicine (M.D.) in Palo Alto, California, licensed in CA, with an NPI issued in October 2006. Part D covered 1,784 prescriptions written in 2024, 86% of them generic. Pfizer Inc. was the largest of 13 companies reporting payments in 2025, $1,211 in all, mostly food and beverage.
Overview
| NPI | 1386738623 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Oct 3, 2006 |
| Last updated in NPPES | Oct 30, 2020 |
| Certified by provider | Oct 30, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | G66832 | 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) | Not in the public enrollment file of Oct 1, 2026 |
|---|---|
| Opt-out | Opted out Feb 8, 2016 – Feb 8, 2028 |
| Can order and refer | Yes |
During an opt-out period the provider sees Medicare patients only under private contracts, and Medicare does not pay claims for their services.
Part D prescriptions in 2024
| Prescriptions (claims) | 1,784 · 3,865 30-day fills |
|---|---|
| Patients | 141 |
| Total drug cost | $175,351 |
| Generic share | 86% of claims |
Industry payments (Open Payments)
- 2025$1,211 · 56 payments from 13 companies
- 2024$1,248 · 69 payments from 15 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $293.87 | 15 |
| Novo Nordisk Inc | $223.23 | 11 |
| Abbvie Inc. | $154.48 | 7 |
| Lilly USA, LLC | $116.40 | 5 |
| Exact Sciences Corporation | $100.25 | 4 |
What the 2025 payments were for
- Food and Beverage$1,195 · 55 payments
- Education$15.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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