JOANNA CHRISTINE LIM M.D.
NPI 1851612675
Surgery in Ontario, CA
About Joanna Christine Lim M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOANNA CHRISTINE LIM M.D. (NPI 1851612675) is an individual surgery provider in Ontario, California, licensed in California (A119225) and active in the NPI registry since June 2010. She is enrolled in Medicare PECOS and is a graduate of Eastern Virginia Medical School (2010).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Joanna Christine Lim M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Joanna Lim reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Chino Hills, CA 91709
- Reassigned Medicare billing, California enrollment
- Also billed through NPI 1952333460 (California)
- 5,228 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 91761 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 7
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ONTARIO, CA 91761
ONTARIO, CA 91761
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Joanna Lim's NPI number?
The NPI number for Joanna Lim is 1851612675. It was assigned to this individual provider in the NPPES registry on June 15, 2010.
Where is Joanna Lim located?
Joanna Lim practices at 2295 S Vineyard Ave Bldg D, Ontario, CA 91761. The listed phone number is (909) 724-5000.
What is Joanna Lim's specialty?
The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.
Is Joanna Lim enrolled in Medicare?
Yes. Joanna Lim is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Joanna Lim's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Joanna Lim reassigns Medicare benefits to Southern California Permanente Medical Group (Chino Hills, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Joanna Lim's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Joanna Lim was last updated on December 3, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Joanna Christine Lim, M.D. · NPI 1851612675
Surgery physician in Ontario, California. Individual provider, active in the CMS NPPES registry since June 15, 2010.
## Identity
- **NPI:** 1851612675 (Entity type: Individual)
- **Enumerated:** June 15, 2010
- **Primary specialty:** Surgery · taxonomy 208600000X
- **State license:** A119225 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 2295 S VINEYARD AVE BLDG D, Ontario, CA 91761-7925
- **Phone:** (909) 724-5000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Southern California Permanente Medical Group (NPI 1396287082, Chino Hills, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Eastern Virginia Medical School, class of 2010
## Record status
- **NPPES last updated:** December 3, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1851612675) · Data from the CMS NPPES public registry.