John Oganesyan, D.D.S.
NPI 1265988638 · Endodontics · Los Angeles, CA
John Oganesyan, D.D.S. is a Endodontics provider in Los Angeles, CA (NPI 1265988638).
Provider details
- NPI number
- 1265988638
- Entity type
- Individual
- Primary specialty
- EndodonticsDental Providers
- Credential
- D.D.S.
- Sex
- Male
- Sole proprietor
- No
- License
- DDS100636 (CA)
Specialties & taxonomies
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin | 17 | 16 |
| Ibuprofen | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-08-26
- Last updated
- 2025-10-29
- Certified
- 2025-10-29
Frequently asked questions
- What is John Oganesyan's NPI number?
- John Oganesyan's National Provider Identifier (NPI) is 1265988638, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Oganesyan's specialty?
- John Oganesyan is listed in the NPPES registry with a primary specialty of Endodontics (Dental Providers).
- Where is John Oganesyan located?
- John Oganesyan's practice location on file with NPPES is 1127 Wilshire Blvd Ste 903, Los Angeles, CA 90017-3910.
- What is John Oganesyan's phone number?
- The practice phone number listed in the NPPES registry for John Oganesyan is (213) 481-1155.
- Is John Oganesyan's NPI active?
- Yes — John Oganesyan's NPI (1265988638) is active in the NPPES registry as of the last update on 2025-10-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.