Ivan Leroux, MD
NPI 1568088110 · Internal Medicine Physician · Upland, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ivan Leroux, MD is a Internal Medicine Physician provider in Upland, CA (NPI 1568088110).
Provider details
- NPI number
- 1568088110
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A183662 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 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 · 59 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 196 | 107 |
| Amlodipine Besylate | 109 | 56 |
| Meloxicam | 97 | 58 |
| Omeprazole | 89 | 47 |
| Losartan Potassium | 81 | 36 |
| Metformin Hcl | 75 | 44 |
| Ibuprofen | 75 | 50 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-06-19
- Last updated
- 2023-12-22
- Certified
- 2023-07-20
Frequently asked questions
- What is Ivan Leroux's NPI number?
- Ivan Leroux's National Provider Identifier (NPI) is 1568088110, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ivan Leroux's specialty?
- Ivan Leroux is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ivan Leroux located?
- Ivan Leroux's practice location on file with NPPES is 330 E 7th St Fl 2, Upland, CA 91786-6740.
- What is Ivan Leroux's phone number?
- The practice phone number listed in the NPPES registry for Ivan Leroux is (800) 213-8517.
- Does Ivan Leroux accept Medicare?
- Ivan Leroux is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ivan Leroux's NPI active?
- Yes — Ivan Leroux's NPI (1568088110) is active in the NPPES registry as of the last update on 2023-12-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.