Calvin Edward Chen, MD
NPI 1659369544ActiveIndividual· Family Medicine· Mountain View, CA
Family Medicine (MD) in Mountain View, California, trained at University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) (class of 1997). Their prescriptions cost Medicare Part D more than their services did: $190,602 for 1,885 claims, against $42,408 paid for services in 2024. Ars Pharmaceuticals Operations, Inc. reported $67.31 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1659369544 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 13, 2005 |
| Last updated in NPPES | Nov 14, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | A67042 | CA |
| Family Medicine | 207Q00000X | 036102826 | IL |
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 - Family Practice (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 152 |
|---|---|
| Services billed | 427 across 28 procedure codes |
| Paid by Medicare | $42,408 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,885 · 5,062 30-day fills |
|---|---|
| Patients | 216 |
| Total drug cost | $190,602 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical group
- Sutter Bay Medical FoundationFremont, CA · 3,829 clinicians
Other facilities
- Sutter Care at HomeHome health agency · Saratoga, CA
Industry payments (Open Payments)
- 2025$67.31 · 1 payment from 1 company
- 2024$124.98 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ars Pharmaceuticals Operations, Inc. | $67.31 | 1 |
What the 2025 payments were for
- Food and Beverage$67.31 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 69 family medicine physicians in Mountain View · All family medicine physicians in California