JOHN FLORES MD
NPI 1710428008
Internal Medicine - Infectious Disease in Chicago, IL
About John Flores Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN FLORES MD (NPI 1710428008) is an individual infectious disease provider in Chicago, Illinois, licensed in Illinois (036151754) and active in the NPI registry since March 2017. He is enrolled in Medicare PECOS, maintains a secondary practice location in Chicago, and is a graduate of University Of Texas Medical School At San Antonio (2017).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
John Flores Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show John Flores reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Chicago, IL 60637
- Reassigned Medicare billing, Illinois enrollment
- 1,047 clinicians in this Medicare group
Chicago, IL 60621
- Reassigned Medicare billing, Illinois enrollment
- 2,127 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60637 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 8
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CHICAGO, IL 60637
CHICAGO, IL 60637
CHICAGO, IL 60637
CHICAGO, IL 60637
CHICAGO, IL 60637
CHICAGO, IL 60637
CHICAGO, IL 60637
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is John Flores's NPI number?
The NPI number for John Flores is 1710428008. It was assigned to this individual provider in the NPPES registry on March 20, 2017.
Where is John Flores located?
John Flores practices at 5841 S Maryland Ave # Mc5065, Chicago, IL 60637. The listed phone number is (773) 834-9740.
What is John Flores's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.
Is John Flores enrolled in Medicare?
Yes. John Flores is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for John Flores's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Flores reassigns Medicare benefits to 2 organizations: Cook County (Chicago, IL) and The Board Of Trustees Of The University Of Illinois (Chicago, IL). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for John Flores's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Flores accept?
Health plans from Ambetter Health and Ambetter Health of Delaware list John Flores as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for John Flores was last updated on August 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# John Flores, MD · NPI 1710428008
Infectious Disease physician in Chicago, Illinois. Individual provider, active in the CMS NPPES registry since March 20, 2017.
## Identity
- **NPI:** 1710428008 (Entity type: Individual)
- **Enumerated:** March 20, 2017
- **Primary specialty:** Internal Medicine - Infectious Disease · taxonomy 207RI0200X
- **State license:** 036151754 (Illinois)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 5841 S MARYLAND AVE # MC5065, Chicago, IL 60637-1443
- **Phone:** (773) 834-9740 · **Fax:** (773) 753-1095
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Cook County (NPI 1497874325, Chicago, IL); The Board Of Trustees Of The University Of Illinois (NPI 1427600345, Chicago, IL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Texas Medical School At San Antonio, class of 2017
## Record status
- **NPPES last updated:** August 7, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1710428008) · Data from the CMS NPPES public registry.