Quick answers
- Where does James W. Lim see patients?
- Medicare's clinician data lists 2 practice locations, including Ventura, CA. Call before your visit to confirm the address.
- What is James W. Lim's specialty?
- Medicare lists Hospitalist as the primary specialty, and also Family Practice.
- Does James W. Lim accept Medicare assignment?
- Yes. Medicare's clinician data says James W. Lim accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for James W. Lim?
- (877) 608-0044, as listed in official Medicare / NPI Registry data.
- What is James W. Lim's NPI number?
- 1730248329. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where James W. Lim is enrolled with Medicare (CMS data updated 2026-10-02).
- 4949 Market StVentura, CA 93003 (877) 608‑0044
- 888 S Hill RdVentura, CA 93003 (805) 477‑6400
Group practices
Medicare enrollment lists James W. Lim as a member of this group (CMS data updated 2026-10-02).
- Southern California Permanente Medical Group11,293 clinicians in the group
Specialties
- Hospitalistprimary
- Family Practicealso
Other hospitalists in Ventura
Clinicians with the same Medicare primary specialty in Ventura, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, San Diego School Of Medicine |
| Graduation year | 1994 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1730248329 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians