Stephen Anthony Los, DDS
General Practice Dentistry · San Jose, CA
Stephen Anthony Los, DDS is a general practice dentistry with a practice address in San Jose, California, and NPI 1649281312, issued on Aug 10, 2006. Check the license (California 42479, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Stephen Anthony Los
- Credential
- DDS
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 42479 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2505 Samaritan Dr, San Jose, CA 95124
- Phone
- (408) 356-8186
- Enumerated
- Aug 10, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (408) 356-2433
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 17,852 in California → Look up another NPI →
Also registered at 2505 Samaritan Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Stephen Anthony Los in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 42479Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average general practice dentistry in 2024
15 Medicare Part D claims for 12 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.
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: $192.86
10 payments; by number, the most common kind was food and beverage; the largest payer was Straumann USA LLC. The 41,669 providers of this specialty with any payment received $597.01 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.
Stephen Anthony Los among 17,852 general practice dentistry records in California
Stephen Anthony Los, DDS is one of 17,852 general practice dentistry records with a practice address in California. 57% 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 3% of them.
- NPI issued2006 · 3% of these records are older, 71% newer
- In a Medicare fileYes · 57% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2007 · 79% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
583 general practice dentistry records list a practice address in San Jose
They are 583 of the 20,925 NPPES records with a practice address in San Jose, and 17,852 general practice dentistry records in California.
All 17,852 in California → Every provider in San Jose → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Terri Brummitt, DDSSan Jose, CA 951241023113891
- Andrew Fong, D.D.S.San Jose, CA 951241487754214
- Thomas Halliday, DDSSan Jose, CA 951241073611331
- Jane Kuo, D.D.S.San Jose, CA 951241497863286
- Seema McMaster, DDSSan Jose, CA 951241689758997
- Bahman Mehdizadeh, DDSSan Jose, CA 951241467472613
- Kim Ngo, DDSSan Jose, CA 951241215013834
- Sam Photopoulos, D.D.S.San Jose, CA 951241346282753
Common questions
What is Stephen Anthony Los, DDS's NPI number?
Stephen Anthony Los, DDS's National Provider Identifier (NPI) is 1649281312, issued on Aug 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Stephen Anthony Los, DDS located?
The NPPES record lists a practice address at 2505 Samaritan Dr, San Jose, CA, 95124. Phone: (408) 356-8186. Providers update this record themselves, so call before visiting.
How can I verify Stephen Anthony Los, DDS's license?
NPPES lists California license number 42479, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Stephen Anthony Los, DDS prescribe under Medicare Part D?
In 2024, Stephen Anthony Los, DDS had 15 Medicare Part D claims for 12 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.