Ronald Oleson, D.D.S.
Endodontics · Saratoga, CA
Ronald Oleson, D.D.S. is an endodontics with a practice address in Saratoga, California, and NPI 1366571143, issued on Mar 5, 2007. Check the license (California D26780, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ronald Oleson
- Credential
- D.D.S.
- Primary taxonomy
- Endodontics 1223E0200X
- License number
- D26780 CA
Self-reported in NPPES; status is on the state search - Practice location
- 18805 Cox Ave, Saratoga, CA 95070
- Phone
- (408) 379-3636
- Enumerated
- Mar 5, 2007
- Entity
- Type 1 · individual
Also registered at 18805 Cox Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Leila Baroudi, D.D.S.General Practice Dentistry1104940170
- Gregory Belcher, M.D.Orthopaedic Surgery Physician1598874422
- Heather Owens, DDSDentist1023279932
- Michael Wang, D.CChiropractor1760749113
Verify Ronald Oleson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license D26780Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
75% fewer Medicare Part D claims than the average endodontics in 2024
31 Medicare Part D claims for 30 beneficiaries, against an average of 124 among the 3,574 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Amoxicillin20 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.
5 endodontics records list a Saratoga practice address
They are 5 of the 306 NPPES records with a Saratoga practice address, and 916 endodontics records in California.
All 5 in Saratoga → All 916 in California → Every provider in Saratoga →
Other endodontics records in California
- Farnoosh Abbasi, D.D.S, M.D.SMarina, CA1437423407
- Farah Abbassi, DMD, MSDSanta Ana, CA1528117165
- James Abbott, D.D.S., M.S.Santa Rosa, CA1467629386
- Adham Abdel Azim, BDS, DDSSan Francisco, CA1427300599
- Hamid AbediLong Beach, CA1891865861
- Sara AbolmaaliIrvine, CA1770937096
- Thomas Acierno, D.D.S.San Diego, CA1477641157
- Dina Adami, DDSSanta Monica, CA1962942367
- David Adamic, D.D.S.Hemet, CA1154570737
- Rowshan Ahani, D.D.S., M.S.Daly City, CA1821494378
Common questions
What is Ronald Oleson, D.D.S.'s NPI number?
Ronald Oleson, D.D.S.'s National Provider Identifier (NPI) is 1366571143, issued on Mar 5, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Ronald Oleson, D.D.S. located?
The NPPES record lists a practice address at 18805 Cox Ave, Saratoga, CA, 95070. Phone: (408) 379-3636. Providers update this record themselves, so call before visiting.
How can I verify Ronald Oleson, D.D.S.'s license?
NPPES lists California license number D26780, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Ronald Oleson, D.D.S. prescribe under Medicare Part D?
In 2024, Ronald Oleson, D.D.S. had 31 Medicare Part D claims for 30 beneficiaries; the average among endodontics prescribers was 124. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.