Andrew Hok San Thio, MD
NPI 1356310957ActiveIndividual· Anesthesiology· Murrieta, CA
Anesthesiology (MD) in Murrieta, California, trained at Loma Linda University School of Medicine (class of 1991). 165 Medicare patients in 2024, $181,446 paid; nearly all of their 337 Part D prescriptions were generic (97%). Medtronic, Inc. was the largest of 2 companies reporting payments in 2025, $6,137 in all, mostly food and beverage.
Overview
| NPI | 1356310957 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 16, 2006 |
| Last updated in NPPES | Mar 12, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Anesthesiology Primary | 207L00000X | G75296 | CA |
| Pain Medicine, Pain Medicine | 208VP0000X | G75296 | 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 - Pain Management (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 165 |
|---|---|
| Services billed | 2,640 across 32 procedure codes |
| Paid by Medicare | $181,446 |
Part D prescriptions in 2024
| Prescriptions (claims) | 337 · 351 30-day fills |
|---|---|
| Patients | 127 |
| Total drug cost | $7,441 |
| Generic share | 97% of claims |
Education and affiliations
| Medical school | Loma Linda University School of Medicine |
|---|---|
| Graduation year | 1991 |
| Medicare specialty | Pain Management |
| Secondary specialties | Anesthesiology |
Industry payments (Open Payments)
- 2025$6,137 · 101 payments from 2 companies
- 2024$6,052 · 93 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $6,121 | 100 |
| Globus Medical, Inc. | $16.03 | 1 |
What the 2025 payments were for
- Food and Beverage$6,137 · 101 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 58 anesthesiologists in Murrieta · All anesthesiologists in California