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JENNIFER JAO MD
NPI 1295779908
Pediatrics - Pediatric Infectious Diseases in Chicago, IL

Active since June 15, 2006PECOS EnrolledAccepts Medicare Assignment
225 E. CHICAGO AVE., #20, CHICAGO, IL 60611(312) 227-4080(312) 227-9709 Get Directions Write a Review

NPPES record last updated: February 28, 2020. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Jennifer Jao Md NPPES

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

JENNIFER JAO MD (NPI 1295779908) is an individual pediatric infectious diseases provider in Chicago, Illinois, licensed in Illinois (036104230) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS and is a graduate of Medical College Of Georgia School Of Medicine (1998).

NPPES Registry Identity

NPI1295779908
Entity TypeIndividualFemale
Primary Taxonomy2080P0208X
Provider Legal NameJENNIFER JAOCredential: MD
Location Address225 E. CHICAGO AVE., #20Chicago, IL 60611
Mailing Address225 E. Chicago Ave., #20Chicago, IL 60611 · (312) 227-4080 · Fax (312) 227-9709
Phone(312) 227-4080
Fax(312) 227-9709
Sole ProprietorNo
Medical School CMSMedical College Of Georgia School Of MedicineGraduated 1998
Enumeration DateJune 15, 2006
Last NPPES UpdateFebruary 28, 2020
✔ NPI 1295779908 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPediatrics · Pediatric Infectious DiseasesAllopathic & Osteopathic Physicians
Taxonomy Code2080P0208X
License✔ Licensed in IL · 036104230
Definition
A pediatrician trained to care for children in the diagnosis, treatment and prevention of infectious diseases. This specialist can apply specific knowledge to affect a better outcome for pediatric infections with complicated courses, underlying diseases that predispose to unusual or severe infections, unclear diagnoses, uncommon diseases and complex or investigational treatments.
Also ListedSpecialistTaxonomy 174400000X · License 25MA07867800 (NJ)
Also ListedInternal Medicine · Infectious DiseaseTaxonomy 207RI0200X · License 235208 (NY)
225 E. CHICAGO AVE., Chicago, IL 60611
Open in Google Maps ↗

Other Names 1

Former Name (1)Jennifer Ko Md

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

Jennifer Jao 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.

PECOS PAC ID5294825907
PECOS Enrollment IDI20191002000001
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 Jennifer Jao reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Lurie Children's Medical Group Inc
Same address
Pediatrics
225 E CHICAGO AVE
Chicago, IL 60611
  • Reassigned Medicare billing, Illinois enrollment
  • 826 clinicians in this Medicare group
NPI 1518064716 (312) 227-6412
Northwestern Medical Faculty Foundation
34 mi
Multi-Specialty
DEPT 5777
Carol Stream, IL 60122
  • Reassigned Medicare billing, Illinois enrollment
  • 4,817 clinicians in this Medicare group
NPI 1346235314 (855) 694-2866

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

Other Providers at the Same Location NPPES

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

SONALI S CHAUDHURY MD
Pediatrics (Pediatric Hematology-Oncology)
225 E. CHICAGO AVE.
CHICAGO, IL 60611
Cook County (312) 227-4090

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 Jennifer Jao's NPI number?

The NPI number for Jennifer Jao is 1295779908. It was assigned to this individual provider in the NPPES registry on June 15, 2006. The provider is also known as Jennifer Ko MD.

Where is Jennifer Jao located?

Jennifer Jao practices at 225 E. Chicago Ave. #20, Chicago, IL 60611. The listed phone number is (312) 227-4080.

What is Jennifer Jao's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Infectious Diseases, with taxonomy code 2080P0208X.

Is Jennifer Jao enrolled in Medicare?

Yes. Jennifer Jao 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 Jennifer Jao's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Jennifer Jao reassigns Medicare benefits to 2 organizations: Lurie Children's Medical Group Inc (Chicago, IL) and Northwestern Medical Faculty Foundation (Carol Stream, 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 Jennifer Jao's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Jennifer Jao was last updated on February 28, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.