Vivian Zeng, PA-C
NPI 1255911541ActiveIndividual· Physician Assistant· Fort Collins, CO
Physician Assistant (PA-C) with Summitstone Health Partners, practicing in Fort Collins, Colorado. Their prescriptions cost Medicare Part D more than their services did: $10,493 for 67 claims, against $801.17 paid for services in 2024. Neurocrine Biosciences, Inc. was the largest of 4 companies reporting payments in 2025, $85.32 in all, mostly food and beverage.
Overview
| NPI | 1255911541 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Apr 11, 2021 |
| Last updated in NPPES | Mar 27, 2025 |
| Certified by provider | Mar 27, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | PA.0006236 | CO |
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 - Physician Assistant (CO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 12 |
|---|---|
| Services billed | 20 across 10 procedure codes |
| Paid by Medicare | $801.17 |
Part D prescriptions in 2024
| Prescriptions (claims) | 67 · 67 30-day fills |
|---|---|
| Patients | 28 |
| Total drug cost | $10,493 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2019 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Summitstone Health PartnersFort Collins, CO · 115 clinicians
Industry payments (Open Payments)
- 2025$85.32 · 4 payments from 4 companies
- 2024$203.30 · 11 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Neurocrine Biosciences, Inc. | $28.38 | 1 |
| Braeburn Inc. | $25.64 | 1 |
| Alkermes, Inc. | $16.22 | 1 |
| Indivior Inc. | $15.08 | 1 |
What the 2025 payments were for
- Food and Beverage$85.32 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 192 physician assistants in Fort Collins · All physician assistants in Colorado