Timothy Michael Preston, PA-C
NPI 1053956896ActiveIndividual· Physician Assistant· Stanford, CA
Physician Assistant (PA-C) with Stanford Health Care, practicing in Stanford, California. 21 Medicare patients in 2024, $3,742 paid; nearly all of their 189 Part D prescriptions were generic (98%). Davol Inc. was the largest of 2 companies reporting payments in 2025, $187.30 in all, mostly food and beverage. Lists Stanford Health Care as a hospital affiliation.
Overview
| NPI | 1053956896 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Nov 15, 2019 |
| Last updated in NPPES | Dec 23, 2025 |
| Certified by provider | Dec 23, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 58034 | CA |
| Physician Assistant, Surgical | 363AS0400X | 58034 | CA |
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 (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 21 |
|---|---|
| Services billed | 25 across 7 procedure codes |
| Paid by Medicare | $3,742 |
Part D prescriptions in 2024
| Prescriptions (claims) | 189 · 190 30-day fills |
|---|---|
| Patients | 59 |
| Total drug cost | $1,811 |
| Generic share | 98% of claims |
Education and affiliations
| Graduation year | 2020 |
|---|---|
| Medicare specialty | Physician Assistant |
| Telehealth | Offers telehealth |
Medical group
- Stanford Health CareStanford, CA · 3,122 clinicians
Hospital affiliation
- Stanford Health CareStanford, CA
Industry payments (Open Payments)
- 2025$187.30 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Davol Inc. | $172.82 | 2 |
| Moximed, Inc | $14.48 | 1 |
What the 2025 payments were for
- Food and Beverage$187.30 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 505 physician assistants in Stanford · All physician assistants in California