Si On Lim, DDS
General Practice Dentistry · Chapel Hill, NC
Si On Lim, DDS is a general practice dentistry with a practice address in Chapel Hill, North Carolina, and NPI 1275970345, issued on May 30, 2013. Check the license (North Carolina 9497, as entered in NPPES) with the North Carolina board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Si On Lim
- Credential
- DDS
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License numbers
- 9497 NC
2901020933 MI
Self-reported in NPPES; status is on the state search - Practice location
- 385 S Columbia St, Chapel Hill, NC 27599
- Phone
- (919) 537-3866
- Enumerated
- May 30, 2013
- Record last updated
- Jan 18, 2023
- Fax
- (919) 537-3628
- Medicare enrollment
- Enrolled (PECOS I20190917000028); accepts Medicare assignment
- Medical or professional school
- University Of North Carolina School Of Dentistry, 2013
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 3,856 in North Carolina → Look up another NPI →
Also registered at 385 S Columbia St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Chinyere Adeleke, DDSDentist1598495038
- Sara AlbastoniOral and Maxillofacial Pathology Dentistry1326694803
- Riley Allen, DDSStudent in an Organized Health Care Education/Training Program1174191951
- Leen AlqudahOral and Maxillofacial Pathology Dentistry1356939466
- Elisa Arnarsdottir, DDSDentist1700339223
- Megan Blackstock, DMDDentist1699464099
Verify Si On Lim in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich North Carolina board licenses this profession
Search for license 9497Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
66% more Medicare Part D claims than the average general practice dentistry in 2024
138 Medicare Part D claims for 53 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Sodium Fluoride34 claims
- Chlorhexidine Gluconate32 claims
- Lorazepam19 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- University OF North Carolina Hospitals AT Chapel HillChapel Hill, NC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Si On Lim among 3,856 general practice dentistry records in North Carolina
Si On Lim, DDS is one of 3,856 general practice dentistry records with a practice address in North Carolina. 66% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 64% of them.
- NPI issued2013 · 64% of these records are older, 34% newer
- In a Medicare fileYes · 66% of these records are
- In the CMS Doctors and Clinicians fileYes · under 1% of these records are
- Graduated2013 · median 2017 among the 36 with a school on file
- Record last updated2023 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X and a North Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
114 general practice dentistry records list a practice address in Chapel Hill
They are 114 of the 7,608 NPPES records with a practice address in Chapel Hill, and 3,856 general practice dentistry records in North Carolina.
All 3,856 in North Carolina → Every provider in Chapel Hill → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Charles BrantleyChapel Hill, NC 275991629085899
- Jennifer Cook, DDSChapel Hill, NC 275991285707026
- Glenn Garland, DDSChapel Hill, NC 275991073522199
- Carol Haggerty, DDSChapel Hill, NC 275991902828171
- Harald Heymann, DDS, MEDChapel Hill, NC 275991912015843
- Gary Lucci, D.M.D.Chapel Hill, NC 275991598771164
- Rick Mumford, D.M.D.Chapel Hill, NC 275991326052523
- William Murdock, DDSChapel Hill, NC 275991548329725
Common questions
What is Si On Lim, DDS's NPI number?
Si On Lim, DDS's National Provider Identifier (NPI) is 1275970345, issued on May 30, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Si On Lim, DDS located?
The NPPES record lists a practice address at 385 S Columbia St, Chapel Hill, NC, 27599. Phone: (919) 537-3866. Providers update this record themselves, so call before visiting.
How can I verify Si On Lim, DDS's license?
NPPES lists North Carolina license number 9497, as entered by the provider. Search the North Carolina board that licenses this profession; the NPPES record confirms identity only.
How much does Si On Lim, DDS prescribe under Medicare Part D?
In 2024, Si On Lim, DDS had 138 Medicare Part D claims for 53 beneficiaries; the average among general practice dentistry prescribers was 83. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.