Santoso Tirtawidjaja, DDS
Dentist · Los Angeles, CA
Santoso Tirtawidjaja, DDS is a dentist with a practice address in Los Angeles, California, and NPI 1295896850, issued on Dec 13, 2006. Check the license (California 38931, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Santoso Tirtawidjaja
- Credential
- DDS
- Primary taxonomy
- Dentist 122300000X
- License number
- 38931 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1200 West Martin Luther King Blvd, Los Angeles, CA 90037
- Phone
- (323) 295-8306
- Enumerated
- Dec 13, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest dentist records → All 14,729 in California → Look up another NPI →
Verify Santoso Tirtawidjaja in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 38931Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
35% more Medicare Part D claims than the average dentist in 2024
116 Medicare Part D claims for 64 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin61 claims
- Ibuprofen41 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.
Santoso Tirtawidjaja among 14,729 dentist records in California
Santoso Tirtawidjaja, DDS is one of 14,729 dentist records with a practice address in California. 56% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 82% newer
- In a Medicare fileYes · 56% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2007 · 73% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
881 dentist records list a practice address in Los Angeles
They are 881 of the 69,537 NPPES records with a practice address in Los Angeles, and 14,729 dentist records in California.
All 14,729 in California → Every provider in Los Angeles → Dentist nationwide →
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Common questions
What is Santoso Tirtawidjaja, DDS's NPI number?
Santoso Tirtawidjaja, DDS's National Provider Identifier (NPI) is 1295896850, issued on Dec 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Santoso Tirtawidjaja, DDS located?
The NPPES record lists a practice address at 1200 West Martin Luther King Blvd, Los Angeles, CA, 90037. Phone: (323) 295-8306. Providers update this record themselves, so call before visiting.
How can I verify Santoso Tirtawidjaja, DDS's license?
NPPES lists California license number 38931, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Santoso Tirtawidjaja, DDS prescribe under Medicare Part D?
In 2024, Santoso Tirtawidjaja, DDS had 116 Medicare Part D claims for 64 beneficiaries; the average among dentist prescribers was 86. 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.