Justin Olivas, MD
NPI 1891321709 · Internal Medicine Physician · Santa Clara, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Justin Olivas, MD is a Internal Medicine Physician provider in Santa Clara, CA (NPI 1891321709).
Provider details
- NPI number
- 1891321709
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 125.075543 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
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
7 documented practice locations
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 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 20 | 12 |
| Furosemide | 20 | 19 |
| Memantine Hcl | 14 | — |
| Metoprolol Succinate | 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
Additional practice locations (6)
- 251 E Huron StChicago, IL 60611-3055Phone: (312) 926-2000
- 355 E Erie StChicago, IL 60611-3167Phone: (312) 238-1000
- 2750 W North AveChicago, IL 60647-5247Phone: (312) 666-3494
- 225 E Chicago AveChicago, IL 60611-2991Phone: (312) 227-4000
- 300 Randall RdGeneva, IL 60134-4200Phone: (630) 208-3000
- 1000 N Westmoreland RdLake Forest, IL 60045-1658Phone: (847) 234-5600
Registry dates
- Enumerated
- 2020-03-23
- Last updated
- 2023-07-07
- Certified
- 2023-07-07
Frequently asked questions
- What is Justin Olivas's NPI number?
- Justin Olivas's National Provider Identifier (NPI) is 1891321709, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Justin Olivas's specialty?
- Justin Olivas is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Justin Olivas located?
- Justin Olivas's practice location on file with NPPES is 700 Lawrence Expy, Santa Clara, CA 95051-5173.
- What is Justin Olivas's phone number?
- The practice phone number listed in the NPPES registry for Justin Olivas is (408) 851-1000.
- Does Justin Olivas accept Medicare?
- Justin Olivas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Justin Olivas's NPI active?
- Yes — Justin Olivas's NPI (1891321709) is active in the NPPES registry as of the last update on 2023-07-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.