John Jiwoong Ryu, MD
NPI 1497783021ActiveIndividual· Anesthesiology· Walnut Creek, CA
Anesthesiology (MD) in Walnut Creek, California, trained at Vanderbilt University School of Medicine (class of 1991). Medicare paid $29,891 for services to 165 patients in 2024.
Overview
| NPI | 1497783021 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 30, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Anesthesiology Primary | 207L00000X | A51686 | 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 - Anesthesiology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 165 |
|---|---|
| Services billed | 192 across 44 procedure codes |
| Paid by Medicare | $29,891 |
Education and affiliations
| Medical school | Vanderbilt University School of Medicine |
|---|---|
| Graduation year | 1991 |
| Medicare specialty | Anesthesiology |
Medical groups
- Cep America - Anesthesia PCRedding, CA · 849 clinicians
- G2 Anesthesia PCSan Jose, CA · 107 clinicians
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Anesthesiology providers in Walnut Creek
- 1790401438
- 1235309873
- 1982038378
- 1174901508
- 1275777641
- 1255379624
- 1447419957
- 1447712286
- 1073551057
- 1235217316
- 1639796519
- 1700964863