Mario Lozano-Franco, MD
NPI 1831698588 · Internal Medicine Physician · Chicago, IL
Mario Lozano-Franco, MD is a Internal Medicine Physician provider in Chicago, IL (NPI 1831698588).
Provider details
- NPI number
- 1831698588
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 6433 (PR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Pharmacy Service Providers
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
8 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 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.
Practice location
Mailing address
Additional practice locations (1)
- 1051 Calle 3 Se Apt 614San Juan, PR 00921-3011Phone: (787) 672-8959
Registry dates
- Enumerated
- 2018-02-08
- Last updated
- 2025-04-22
- Certified
- 2025-04-22
Frequently asked questions
- What is Mario Lozano-Franco's NPI number?
- Mario Lozano-Franco's National Provider Identifier (NPI) is 1831698588, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mario Lozano-Franco's specialty?
- Mario Lozano-Franco is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mario Lozano-Franco located?
- Mario Lozano-Franco's practice location on file with NPPES is 1500 S Fairfield Ave, Chicago, IL 60608-1782.
- What is Mario Lozano-Franco's phone number?
- The practice phone number listed in the NPPES registry for Mario Lozano-Franco is (773) 257-5701.
- Is Mario Lozano-Franco's NPI active?
- Yes — Mario Lozano-Franco's NPI (1831698588) is active in the NPPES registry as of the last update on 2025-04-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.