Yi-Ren Chen, MD, MPH
NPI 1114284478ActiveIndividual· Neurological Surgery· Sacramento, CA
Neurological Surgery (MD, MPH) with Dignity Health Medical Foundation, practicing in Sacramento, California. Mostly services rather than prescriptions: Medicare paid $278,803 for 238 patients in 2024, with only 45 Part D claims. Zavation Medical Products, LLC reported $13,909 in payments in 2025, mostly consulting fees. Lists Mercy San Juan Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1114284478 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD, MPH |
| Sole proprietor | Yes |
| NPI issued | Apr 11, 2012 |
| Last updated in NPPES | Jul 25, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Neurological Surgery Primary | 207T00000X | A126433 | 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 - Neurosurgery (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 238 |
|---|---|
| Services billed | 694 across 54 procedure codes |
| Paid by Medicare | $278,803 |
Part D prescriptions in 2024
| Prescriptions (claims) | 45 · 46 30-day fills |
|---|---|
| Patients | 32 |
| Total drug cost | $384.22 |
| Generic share | 100% of claims |
Education and affiliations
| Graduation year | 2012 |
|---|---|
| Medicare specialty | Neurosurgery |
| Telehealth | Offers telehealth |
Medical group
- Dignity Health Medical FoundationFolsom, CA · 1,184 clinicians
Hospital affiliations
- Mercy San Juan Medical CenterCarmichael, CA
- Sierra Nevada Memorial HospitalGrass Valley, CA
Other facilities
- Mercy Home HealthHome health agency · Rancho Cordova, CA
Industry payments (Open Payments)
- 2025$13,909 · 6 payments from 1 company
- 2024$19,079 · 12 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Zavation Medical Products, LLC | $13,909 | 6 |
What the 2025 payments were for
- Consulting Fee$12,675 · 1 payment
- Travel and Lodging$1,234 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 61 neurosurgeons in Sacramento · All neurosurgeons in California