James Jun, D.M.D.
NPI 1285811828 · Periodontics · Corona, CA
James Jun, D.M.D. is a Periodontics provider in Corona, CA (NPI 1285811828).
Provider details
- NPI number
- 1285811828
- Entity type
- Individual
- Primary specialty
- PeriodonticsDental Providers
- Credential
- D.M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 21763 (MA)
Specialties & taxonomies
Dental Providers
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin | 126 | 121 |
| Ibuprofen | 126 | 114 |
| Azithromycin | 113 | 84 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 36 | 33 |
| Acetaminophen With Codeinebrand: Acetaminophen-Codeine | 26 | 25 |
| Clindamycin Hcl | 18 | 16 |
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 , 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
- 2008-01-25
- Last updated
- 2013-08-30
Frequently asked questions
- What is James Jun's NPI number?
- James Jun's National Provider Identifier (NPI) is 1285811828, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Jun's specialty?
- James Jun is listed in the NPPES registry with a primary specialty of Periodontics (Dental Providers).
- Where is James Jun located?
- James Jun's practice location on file with NPPES is 1760 W 6th St, Corona, CA 92882-2790.
- What is James Jun's phone number?
- The practice phone number listed in the NPPES registry for James Jun is (951) 735-7300.
- Is James Jun's NPI active?
- Yes — James Jun's NPI (1285811828) is active in the NPPES registry as of the last update on 2013-08-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.