Dan D. Hopner, MD
NPI 1104836402ActiveIndividual· Family Medicine· San Jose, CA
Family Medicine (MD) with Vasu Toram Professional Corporation, practicing in San Jose, California. Their prescriptions cost Medicare Part D more than their services did: $454,348 for 5,979 claims, against $89,256 paid for services in 2024. Pfizer Inc. reported $21.47 in payments in 2025, mostly food and beverage. Lists Good Samaritan Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1104836402 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Aug 9, 2006 |
| Last updated in NPPES | Jul 22, 2026 |
| Certified by provider | Jul 22, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | A36372 | 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 - Family Practice (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 293 |
|---|---|
| Services billed | 1,089 across 22 procedure codes |
| Paid by Medicare | $89,256 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,979 · 11,475 30-day fills |
|---|---|
| Patients | 374 |
| Total drug cost | $454,348 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 1978 |
|---|---|
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical group
- Vasu Toram Professional CorporationSaratoga, CA · 2 clinicians
Hospital affiliations
- Good Samaritan HospitalSan Jose, CA
- Stanford Health CareStanford, CA
Other facilities
- Meridian Home HealthHome health agency · Newark, CA
Industry payments (Open Payments)
- 2025$21.47 · 1 payment from 1 company
- 2024$105.40 · 4 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $21.47 | 1 |
What the 2025 payments were for
- Food and Beverage$21.47 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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