SI ON LIM DDS
NPI 1275970345
Dentist - General Practice in Chapel Hill, NC
About Si On Lim Dds NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SI ON LIM DDS (NPI 1275970345) is an individual general practice provider in Chapel Hill, North Carolina, licensed in North Carolina (9497) and active in the NPI registry since May 2013. She is enrolled in Medicare PECOS and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Si On Lim Dds is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Si On Lim reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Chapel Hill, NC 27514
- Reassigned Medicare billing, North Carolina enrollment
- 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 27599 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CHAPEL HILL, NC 27599
CHAPEL HILL, NC 27599
CHAPEL HILL, NC 27599
CHAPEL HILL, NC 27599
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 Si On Lim's NPI number?
The NPI number for Si On Lim is 1275970345. It was assigned to this individual provider in the NPPES registry on May 30, 2013.
Where is Si On Lim located?
Si On Lim practices at 385 S Columbia St, Chapel Hill, NC 27599. The listed phone number is (919) 537-3866.
What is Si On Lim's specialty?
The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.
Is Si On Lim enrolled in Medicare?
Yes. Si On Lim is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Si On Lim's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Si On Lim reassigns Medicare benefits to University Of North Carolina Hospitals At Chapel Hill (Chapel Hill, NC). 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 Si On Lim's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Si On Lim accept?
Health plans from Blue Cross and Blue Shield of NC, Delta Dental of North Carolina, Guardian and UnitedHealthcare list Si On Lim as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Si On Lim was last updated on January 18, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Si On Lim, DDS · NPI 1275970345
General Practice provider in Chapel Hill, North Carolina. Individual provider, active in the CMS NPPES registry since May 30, 2013.
## Identity
- **NPI:** 1275970345 (Entity type: Individual)
- **Enumerated:** May 30, 2013
- **Primary specialty:** Dentist - General Practice · taxonomy 1223G0001X
- **State license:** 9497 (North Carolina)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 385 S COLUMBIA ST, Chapel Hill, NC 27599-7450
- **Phone:** (919) 537-3866 · **Fax:** (919) 537-3628
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** University Of North Carolina Hospitals At Chapel Hill (NPI 1568070308, Chapel Hill, NC), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** January 18, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1275970345) · Data from the CMS NPPES public registry.