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JAMES FAN
NPI 1376282467
Internal Medicine in Chicago, IL

Active since May 27, 2022PECOS EnrolledAccepts Medicare Assignment
5841 S MARYLAND AVE # MC1052, CHICAGO, IL 60637(773) 702-6760 Get Directions Write a Review

NPPES record last updated: September 16, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 16, 2025, May 27, 2022 (2 updates tracked since 2022).

About James Fan NPPES

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

JAMES FAN (NPI 1376282467) is an individual internal medicine provider in Chicago, Illinois, licensed in Illinois (036172962) and active in the NPI registry since May 2022. He is enrolled in Medicare PECOS, is affiliated with The University Of Chicago Medical Center, and is a graduate of University Of Chicago, Pritzker School Of Medicine (2022).

NPPES Registry Identity

NPI1376282467
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameJAMES FAN
Location Address5841 S MARYLAND AVE # MC1052Chicago, IL 60637-1443
Mailing Address150 Harvester Dr Ste 300Burr Ridge, IL 60527-5965 · (773) 702-1150
Phone(773) 702-6760
Sole ProprietorNo
Medical School CMSUniversity Of Chicago, Pritzker School Of MedicineGraduated 2022
Enumeration DateMay 27, 2022
Last NPPES UpdateSeptember 16, 20252 updates tracked since enumeration
NPPES CertifiedSeptember 16, 2025
✔ NPI 1376282467 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in IL · 036172962
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.
5841 S MARYLAND AVE # MC1052, Chicago, IL 60637
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health.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

James Fan 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.

PECOS PAC ID5193106771
PECOS Enrollment IDI20250926001621
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 Fan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

The University Of Chicago Medical Center
Same address
General Acute Care Hospital
5841 S MARYLAND AVE
Chicago, IL 60637
  • Reassigned Medicare billing, Illinois enrollment
  • 1,905 clinicians in this Medicare group
NPI 1033218128 (773) 702-1530
University Of Chicago
Same address
Multi-Specialty
5841 S MARYLAND AVE, UCPG/MC 1099
Chicago, IL 60637
  • Reassigned Medicare billing, Illinois enrollment
  • 2,237 clinicians in this Medicare group
NPI 1821048786 (773) 702-9200

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

The University Of Chicago Medical Center

Acute Care Hospitals · Chicago, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140088
Location5841 South MarylandChicago, IL 60637 · Cook County
Emergency services Birthing friendly

Ingalls Memorial Hospital

Acute Care Hospitals · Harvey, IL
2/5 CMS rating
OwnershipPhysician
CMS Certification Number140191
Location1 Ingalls DriveHarvey, IL 60426 · Cook County
Emergency services Birthing friendly

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 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. DERRIUS J. ANDERSON MD
Surgery
5841 S MARYLAND AVE # MC1052
CHICAGO, IL 60637
Cook County (773) 702-2500
JI SOO KIL MD
Psychiatry & Neurology (Child & Adolescent Psychiatry)
5841 S MARYLAND AVE # MC1052
CHICAGO, IL 60637
Cook County (773) 702-0529
DR. CANDACE WILSON MD
Pediatrics
5841 S MARYLAND AVE # MC1052
CHICAGO, IL 60637
Cook County (773) 702-6760
MEGHAM TWISS
Counselor (Mental Health)
5841 S MARYLAND AVE # MC1052
CHICAGO, IL 60637
Cook County (773) 702-4281
MELISSA YUWONO TJOTA MD, PHD
Pathology (Anatomic Pathology & Clinical Pathology)
5841 S MARYLAND AVE # MC1052
CHICAGO, IL 60637
Cook County (773) 834-7708
MICHEAL EZEANA
Emergency Medicine
5841 S MARYLAND AVE # MC1052
CHICAGO, IL 60637
Cook County (773) 702-6760
FRAZER TESSEMA MD
Student in an Organized Health Care Education/Training Program
5841 S MARYLAND AVE # MC1052
CHICAGO, IL 60637
Cook County (773) 702-1447
BREANNA CHANDLER MD
Internal Medicine
5841 S MARYLAND AVE # MC1052
CHICAGO, IL 60637
Cook County (773) 834-0820

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 Fan's NPI number?

The NPI number for James Fan is 1376282467. It was assigned to this individual provider in the NPPES registry on May 27, 2022.

Where is James Fan located?

James Fan practices at 5841 S Maryland Ave # Mc1052, Chicago, IL 60637. The listed phone number is (773) 702-6760.

What is James Fan's specialty?

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

Is James Fan enrolled in Medicare?

Yes. James Fan 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 James Fan's services?

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

What insurance does James Fan accept?

Health plans from Oscar Health list James Fan 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.

Is James Fan affiliated with any hospitals?

According to CMS data, James Fan is affiliated with The University Of Chicago Medical Center and Ingalls Memorial Hospital.

When was this NPI record last updated?

The NPPES record for James Fan was last updated on September 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.