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DR. JAMES FRANCIS HAYS MD
NPI 1053840199
Internal Medicine in Chicago, IL

Active since June 11, 2017PECOS Enrolled
5841 S MARYLAND AVE # MC1145, CHICAGO, IL 60637(773) 702-3020 Get Directions Write a Review

NPPES record last updated: April 29, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 29, 2024, May 27, 2021, Jun 11, 2017 (3 updates tracked since 2017).

About Dr. James Francis Hays Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JAMES FRANCIS HAYS MD (NPI 1053840199) is an individual internal medicine provider in Chicago, Illinois, licensed in Illinois (036155348) and active in the NPI registry since June 2017. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1053840199
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. JAMES FRANCIS HAYSCredential: MD
Location Address5841 S MARYLAND AVE # MC1145Chicago, IL 60637-1443
Mailing Address180 Harvester Dr Ste 110Burr Ridge, IL 60527-6686 · (773) 702-1150
Phone(773) 702-3020
Sole ProprietorNo
Enumeration DateJune 11, 2017
Last NPPES UpdateApril 29, 20243 updates tracked since enumeration
NPPES CertifiedApril 29, 2024
✔ NPI 1053840199 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in IL · 036155348
Definition
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.
Also ListedPediatricsTaxonomy 208000000X · License 125.070481 (IL)
Also ListedPediatrics · Pediatric Critical Care MedicineTaxonomy 2080P0203X · License 036155348 (IL)
Also ListedHospitalistTaxonomy 208M00000X · License 036155348 (IL)
5841 S MARYLAND AVE # MC1145, Chicago, IL 60637
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. James Francis Hays Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show James Hays reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Rush University Medical Center
5.3 mi
Internal Medicine
1411 S MICHIGAN AVE
Chicago, IL 60605
  • Reassigned Medicare billing, Illinois enrollment
  • Medicare enrollment name: Rush University Medical Group
  • 2,169 clinicians in this Medicare group
NPI 1689165540 (312) 563-0654
Lurie Children's Medical Group Inc
7.5 mi
Pediatrics
225 E CHICAGO AVE
Chicago, IL 60611
  • Reassigned Medicare billing, Illinois enrollment
  • 826 clinicians in this Medicare group
NPI 1518064716 (312) 227-6412

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.

New Patient
$138.86 typical visit price
range $60.08 – $183.39
Typical copayment $34.71 (range $15.02 – $45.84)
Most-billed visit code 99204
Established Patient
$105.70 typical visit price
range $18.97 – $148.12
Typical copayment $26.42 (range $4.74 – $37.03)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

LIANNA MARIE DROBATZ MD
Pediatrics
5841 S MARYLAND AVE # MC1145
CHICAGO, IL 60637
Cook County (773) 702-3020
TRUDY JEAN JOHNSON PNP
Nurse Practitioner (Pediatrics, Critical Care)
5841 S MARYLAND AVE # MC1145
CHICAGO, IL 60637
Cook County (773) 702-6681
DR. ALEXANDR MAGDER MB BCH BAO
Pediatrics (Pediatric Critical Care Medicine)
5841 S MARYLAND AVE # MC1145
CHICAGO, IL 60637
Cook County (773) 702-3020
BRETT HABERMEHL MD
Pediatrics (Pediatric Critical Care Medicine)
5841 S MARYLAND AVE # MC1145
CHICAGO, IL 60637
Cook County (773) 702-9659
DR. JESSICA NICOLE JOHNSON MD
Pediatrics (Pediatric Critical Care Medicine)
5841 S MARYLAND AVE # MC1145
CHICAGO, IL 60637
Cook County (773) 702-3020
DR. KEVIN DONALD SMITH MD
Pediatrics (Pediatric Critical Care Medicine)
5841 S MARYLAND AVE # MC1145
CHICAGO, IL 60637
Cook County (773) 702-3020
STEPHANIE LAM DO
Pediatrics (Pediatric Critical Care Medicine)
5841 S MARYLAND AVE # MC1145
CHICAGO, IL 60637
Cook County (773) 702-9659
REBEKAH O'CONNOR DO
Pediatrics
5841 S MARYLAND AVE # MC1145
CHICAGO, IL 60637
Cook County (773) 702-9659

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 James Hays's NPI number?

The NPI number for James Hays is 1053840199. It was assigned to this individual provider in the NPPES registry on June 11, 2017.

Where is James Hays located?

James Hays practices at 5841 S Maryland Ave # Mc1145, Chicago, IL 60637. The listed phone number is (773) 702-3020.

What is James Hays's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is James Hays enrolled in Medicare?

Yes. James Hays is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for James Hays's services?

According to the CMS Revalidation Reassignment List (October 2026 release), James Hays reassigns Medicare benefits to 2 organizations: Rush University Medical Center (Chicago, IL) and Lurie Children's Medical Group Inc (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 James Hays's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does James Hays accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list James Hays 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 James Hays was last updated on April 29, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.