John Oganesyan, D.D.S.
Endodontics · Los Angeles, CA
John Oganesyan, D.D.S. is an endodontics with a practice address in Los Angeles, California, and NPI 1265988638, issued on Aug 26, 2016. Check the license (California DDS100636, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John Oganesyan
- Credential
- D.D.S.
- Primary taxonomy
- Endodontics 1223E0200X
- License number
- DDS100636 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1127 Wilshire Blvd Ste 903, Los Angeles, CA 90017
- Phone
- (213) 481-1155
- Enumerated
- Aug 26, 2016
- Record last updated
- Oct 29, 2025
- Medicaid ID
- DDS100636 CA
- Entity
- Type 1 · individual
8 nearest endodontics records → All 1,018 in California → Look up another NPI →
Verify John Oganesyan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license DDS100636Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% fewer Medicare Part D claims than the average endodontics in 2024
46 Medicare Part D claims for 30 beneficiaries, against an average of 121 among the 4,119 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin17 claims
- Ibuprofen11 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.
John Oganesyan among 1,018 endodontics records in California
John Oganesyan, D.D.S. is one of 1,018 endodontics records with a practice address in California. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 87% of them.
- NPI issued2016 · 87% of these records are older, 11% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2025 · 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 1223E0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endodontics providers in California
There are 1,018 endodontics records in California.
All 1,018 in California → Every provider in Los Angeles → Endodontics nationwide →
The 8 endodontics records with the nearest ZIP codes
- Alex Parsi, D. D. S.Los Angeles, CA 900171063629434
- Lisha Gu, DMDLos Angeles, CA 900201932768363
- Shawn Torbati, DDS SPECIALTYLa, CA 900221639241839
- Nadia Chugal, DDSLos Angeles, CA 900241477843746
- Jerry Green, D.D.S.Los Angeles, CA 900101437295284
- Eddie Harouni, D.D.S.Los Angeles, CA 900241649473083
- Andrea Holstein, DMDLos Angeles, CA 900241811260003
- Jinhyuk Lee, DDSLos Angeles, CA 900101376870816
Common questions
What is John Oganesyan, D.D.S.'s NPI number?
John Oganesyan, D.D.S.'s National Provider Identifier (NPI) is 1265988638, issued on Aug 26, 2016. An NPI identifies a provider in billing; it is not a license.
Where is John Oganesyan, D.D.S. located?
The NPPES record lists a practice address at 1127 Wilshire Blvd Ste 903, Los Angeles, CA, 90017. Phone: (213) 481-1155. Providers update this record themselves, so call before visiting.
How can I verify John Oganesyan, D.D.S.'s license?
NPPES lists California license number DDS100636, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does John Oganesyan, D.D.S. prescribe under Medicare Part D?
In 2024, John Oganesyan, D.D.S. had 46 Medicare Part D claims for 30 beneficiaries; the average among endodontics prescribers was 121. 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.