Semi Lim, D.M.D
Periodontics · Walnut Creek, CA
Semi Lim, D.M.D is a periodontics with a practice address in Walnut Creek, California, and NPI 1275652943, issued on Mar 27, 2007. Check the license (California 56555, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Semi Lim
- Credential
- D.M.D
- Primary taxonomy
- Periodontics 1223P0300X
- License numbers
- 56555 CA
DS035958 PA
Self-reported in NPPES; status is on the state search - Practice location
- 1575 Treat Blvd, Walnut Creek, CA 94598
- Phone
- (925) 939-9177
- Enumerated
- Mar 27, 2007
- Record last updated
- Oct 5, 2010 (not updated in 16 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest periodontics records → All 929 in California → Look up another NPI →
Verify Semi Lim in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 56555Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average periodontics in 2024
22 Medicare Part D claims, against an average of 277 among the 4,191 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Chlorhexidine Gluconate12 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.
Industry payments in 2024: $13.89
1 payment: food and beverage; the largest payer was Dentsply Sirona Inc. The 2,966 providers of this specialty with any payment received $1,338.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Semi Lim among 929 periodontics records in California
Semi Lim, D.M.D is one of 929 periodontics records with a practice address in California. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 29% of them.
- NPI issued2007 · 29% of these records are older, 40% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2010 · 78% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223P0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Periodontics providers in California
There are 929 periodontics records in California.
All 929 in California → Every provider in Walnut Creek → Periodontics nationwide →
The 8 periodontics records with the nearest ZIP codes
- John Bruns, D.D.S.Walnut Creek, CA 945981346452539
- Rose Dastmalchi, D.D.S.Walnut Creek, CA 945981487886214
- Jane Jiao, DDSWalnut Creek, CA 945961407264591
- Etienne Lacrampe, D.M.D.Walnut Creek, CA 945961952529661
- Robert Marks, DDSWalnut Creek, CA 945961265467518
- Dwayne Martin, DDSWalnut Creek, CA 945961558446773
- Stephen Reid, D.D.S.Walnut Creek, CA 945961295872299
- Eric Tsai, D.M.D.Walnut Creek, CA 945961841369386
Common questions
What is Semi Lim, D.M.D's NPI number?
Semi Lim, D.M.D's National Provider Identifier (NPI) is 1275652943, issued on Mar 27, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Semi Lim, D.M.D located?
The NPPES record lists a practice address at 1575 Treat Blvd, Walnut Creek, CA, 94598. Phone: (925) 939-9177. Providers update this record themselves, so call before visiting.
How can I verify Semi Lim, D.M.D's license?
NPPES lists California license number 56555, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Semi Lim, D.M.D prescribe under Medicare Part D?
In 2024, Semi Lim, D.M.D had 22 Medicare Part D claims; the average among periodontics prescribers was 277. 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.