Louis Chae-Wook Lim, MD
NPI 1952353831ActiveIndividual· Anesthesiology· Fullerton, CA
Anesthesiology (MD) in Fullerton, California, trained at Loma Linda University School of Medicine (class of 2000). Mostly services rather than prescriptions: Medicare paid $31,155 for 176 patients in 2024, with only 26 Part D claims. Merck Sharp & Dohme LLC reported $45.12 in payments in 2025, mostly education.
Overview
| NPI | 1952353831 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 17, 2006 |
| Last updated in NPPES | Feb 19, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Anesthesiology Primary | 207L00000X | A80343 | 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 - Anesthesiology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 176 |
|---|---|
| Services billed | 198 across 54 procedure codes |
| Paid by Medicare | $31,155 |
Part D prescriptions in 2024
| Prescriptions (claims) | 26 · 44 30-day fills |
|---|---|
| Total drug cost | $1,989 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | Loma Linda University School of Medicine |
|---|---|
| Graduation year | 2000 |
| Medicare specialty | Anesthesiology |
Medical group
- Allied Anesthesia Medical Group IncOrange, CA · 191 clinicians
Hospital affiliation
- Providence St. Jude Medical CenterFullerton, CA
Industry payments (Open Payments)
- 2025$45.12 · 2 payments from 1 company
- 2024$244.04 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $45.12 | 2 |
What the 2025 payments were for
- Education$25.70 · 1 payment
- Food and Beverage$19.42 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 35 anesthesiologists in Fullerton · All anesthesiologists in California