Bill Tingjun Chen
NPI 1023578713ActiveIndividual· Psychiatry & Neurology, Psychiatry· San Francisco, CA
Psychiatry & Neurology, Psychiatry in San Francisco, California, trained at Saint Louis University School of Medicine (class of 2019). 31 Medicare patients in 2024, $8,170 paid; nearly all of their 52 Part D prescriptions were generic (98%). Biocomposites Inc reported $15.44 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1023578713 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | Yes |
| NPI issued | Mar 20, 2019 |
| Last updated in NPPES | Aug 29, 2023 |
| Certified by provider | Aug 29, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Psychiatry Primary | 2084P0800X | 189587 | 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 - Psychiatry (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 31 |
|---|---|
| Services billed | 70 across 10 procedure codes |
| Paid by Medicare | $8,170 |
Part D prescriptions in 2024
| Prescriptions (claims) | 52 · 75 30-day fills |
|---|---|
| Patients | 19 |
| Total drug cost | $1,696 |
| Generic share | 98% of claims |
Education and affiliations
| Medical school | Saint Louis University School of Medicine |
|---|---|
| Graduation year | 2019 |
| Medicare specialty | Psychiatry |
| Telehealth | Offers telehealth |
Medical group
- Sutter Bay Medical FoundationFremont, CA · 3,829 clinicians
Hospital affiliations
- California Pacific Medical Center - Mission BernalSan Francisco, CA
- California Pacific Medical Center- Van Ness CampusSan Francisco, CA
- California Pacific Medical Ctr-Davies Campus HospSan Francisco, CA
Industry payments (Open Payments)
- 2025$15.44 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Biocomposites Inc | $15.44 | 1 |
What the 2025 payments were for
- Food and Beverage$15.44 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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