DR. MARIO G. LOZANO-FRANCO MD
NPI 1831698588
Internal Medicine in Chicago, IL

NPI Status: Active since February 08, 2018

Contact Information

1500 S FAIRFIELD AVE
CHICAGO, IL
ZIP 60608
Phone: (773) 257-5701

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  • Individual
  • Male
  • Internal Medicine

About MARIO LOZANO-FRANCO

This page provides the complete NPI Profile along with additional information for Mario Lozano-franco, an internist established in Chicago, Illinois with a medical specialization in Internal Medicine. The healthcare provider is registered in the NPI registry with number 1831698588 assigned on February 2018. The practitioner's primary taxonomy code is 207R00000X with license number 125.085198 (IL). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1831698588
Provider Name
DR. MARIO G. LOZANO-FRANCO MD
Gender
Male
Entity Type
Individual
Location Address
1500 S FAIRFIELD AVE CHICAGO, IL 60608
Location Phone
(773) 257-5701
Mailing Address
1051 CALLE 3 SE APT 614 SAN JUAN, PR 00921
Mailing Phone
(787) 672-8959
Is Sole Proprietor?
Yes
Enumeration Date
02-08-2018
Last Update Date
04-22-2025
Code Navigator

An internist like Mario Lozano-franco is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

Location Map

Secondary Locations

  • 1051 Calle 3 SE Apt 614
    San Juan, PR 00921
    (787) 672-8959

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Internal Medicine

Taxonomy Code
207R00000X
Type
Allopathic & Osteopathic Physicians
License No.
125.085198
License State
IL
Taxonomy Description
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1183500000XPharmacy Service Providers

Pharmacist

6433 (PR)
2390200000XStudent, Health Care

Student in an Organized Health Care Education/Training Program

 

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1831698588, we treat the final digit (8) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 72. The final step is to find the difference between that total and the next multiple of ten (80 - 72 = 8).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
8
Unchanged
Pos 3
3
Doubled → 6
Pos 4
1
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
9
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
5
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
Check
8
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 3 → 6 6 → 12 → 3 8 → 16 → 7 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 8 + 6 + 1 + 1 + 2 + 9 + 1 + 6 + 5 + 1 + 6 + 24 = 72

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 72 is 80. The difference is the calculated check digit.

80 - 72 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1831698588.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Internal Medicine
1500 S FAIRFIELD AVE, AP
CHICAGO, IL 60608
Family Medicine
1500 S FAIRFIELD AVE
CHICAGO, IL 60608
General Acute Care Hospital (Children)
1500 S FAIRFIELD AVE
CHICAGO, IL 60608
Emergency Medicine
1500 S FAIRFIELD AVE
CHICAGO, IL 60608
Internal Medicine (Endocrinology, Diabetes & Metabolism)
1500 S FAIRFIELD AVE, F-908
CHICAGO, IL 60608
Internal Medicine
1500 S FAIRFIELD AVE, DEPARTMENT OF INTERNAL MEDICINE
CHICAGO, IL 60608
Registered Nurse (Diabetes Educator)
1500 S FAIRFIELD AVE
CHICAGO, IL 60608
Radiology (Vascular & Interventional Radiology)
1500 S FAIRFIELD AVE
CHICAGO, IL 60608
General Acute Care Hospital
1500 S FAIRFIELD AVE
CHICAGO, IL 60608
Internal Medicine
1500 S FAIRFIELD AVE
CHICAGO, IL 60608
Psychologist (Clinical)
1500 S FAIRFIELD AVE, NR 5TH FLOOR
CHICAGO, IL 60608
Anesthesiology (Pediatric Anesthesiology)
1500 S FAIRFIELD AVE
CHICAGO, IL 60608
Physician Assistant
1500 S FAIRFIELD AVE
CHICAGO, IL 60608
Internal Medicine
1500 S FAIRFIELD AVE, DEPARTMENT OF MEDICINE- 9TH FLOOR
CHICAGO, IL 60608
Surgery
1500 S FAIRFIELD AVE, F930
CHICAGO, IL 60608
General Acute Care Hospital
1500 S FAIRFIELD AVE
CHICAGO, IL 60608
Nurse Practitioner (Family)
1500 S FAIRFIELD AVE
CHICAGO, IL 60608
Physician Assistant
1500 S FAIRFIELD AVE
CHICAGO, IL 60608
Physician Assistant
1500 S FAIRFIELD AVE
CHICAGO, IL 60608
Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)
1500 S FAIRFIELD AVE
CHICAGO, IL 60608

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1831698588, enumerated as an "individual" on February 08, 2018.

The provider is located at 1500 S FAIRFIELD AVE CHICAGO, IL 60608 and the phone number is (773) 257-5701.

Internal Medicine with taxonomy code 207R00000X.