Rock Chen Chun Liu, MD
NPI 1174601256ActiveIndividual· Surgery· Emeryville, CA
Surgery (MD) in Emeryville, California, trained at Ohio State University College of Medicine (class of 1999). 260 Medicare patients in 2024, $143,952 paid; all of their 162 Part D prescriptions were generic. Intuitive Surgical, Inc. was the largest of 13 companies reporting payments in 2025, $214,852 in all, mostly education.
Overview
| NPI | 1174601256 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 2, 2006 |
| Last updated in NPPES | Sep 22, 2026 |
| Certified by provider | Sep 22, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | A91143 | 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 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - General Surgery (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 260 |
|---|---|
| Services billed | 571 across 60 procedure codes |
| Paid by Medicare | $143,952 |
Part D prescriptions in 2024
| Prescriptions (claims) | 162 · 174 30-day fills |
|---|---|
| Patients | 87 |
| Total drug cost | $735.67 |
| Generic share | 100% of claims |
Education and affiliations
| Medical school | Ohio State University College of Medicine |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | General Surgery |
| Telehealth | Offers telehealth |
Medical group
- Bass Medical GroupChico, CA · 291 clinicians
Hospital affiliations
- Alta Bates Summit Medical CenterOakland, CA
- Alta Bates Summit Medical Center - Alta Bates CampBerkeley, CA
- St Rose HospitalHayward, CA
Industry payments (Open Payments)
- 2025$214,852 · 205 payments from 13 companies
- 2024$223,331 · 289 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Intuitive Surgical, Inc. | $190,765 | 169 |
| Davol Inc. | $16,829 | 12 |
| Medtronic, Inc. | $6,469 | 11 |
| Applied Medical Resources Corporation | $187.50 | 1 |
| Tela Bio, Inc. | $154.59 | 3 |
What the 2025 payments were for
- Education$91,618 · 45 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$79,375 · 46 payments
- Travel and Lodging$19,930 · 42 payments
- Honoraria$16,570 · 7 payments
- Food and Beverage$7,172 · 64 payments
- Consulting Fee$187.50 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records