NATHANIEL KOO
NPI 1467626184
Surgery - Pediatric Surgery in Chicago, IL

Active since April 14, 2008PECOS Enrolled
840 S WOOD ST, SUITE 518-E, CHICAGO, IL 60612(312) 996-6765 Get Directions Write a Review

NPPES record last updated: April 26, 2021. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Apr 26, 2021, Nov 13, 2017 (2 updates tracked since 2017).

About Nathaniel Koo NPPES

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

NATHANIEL KOO (NPI 1467626184) is an individual pediatric surgery provider in Chicago, Illinois, licensed in Illinois (036133774) and active in the NPI registry since April 2008. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1467626184
Entity TypeIndividualMale
Primary Taxonomy2086S0120X
Provider Legal NameNATHANIEL KOO
Location Address840 S WOOD ST, SUITE 518-EChicago, IL 60612-4325
Mailing Address1012 N Wood St Unit 2Chicago, IL 60622-3261 · (847) 903-7507
Sole ProprietorNo
Enumeration DateApril 14, 2008
Last NPPES UpdateApril 26, 20212 updates tracked since enumeration
NPPES CertifiedApril 26, 2021
NPI 1467626184 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtySurgery · Pediatric SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code2086S0120X
License Licensed in IL · 036133774
Definition
A surgeon with expertise in the management of surgical conditions in premature and newborn infants, children and adolescents.
Also ListedSurgeryTaxonomy 208600000X · License 036133774 (IL)
840 S WOOD ST, Chicago, IL 60612

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

Nathaniel Koo 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.

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.

Pharmacist (Ambulatory Care)
840 S WOOD ST
CHICAGO, IL 60612
Surgery
840 S WOOD ST, SUITE 417 CSB
CHICAGO, IL 60612
Pharmacist (Pharmacotherapy)
840 S WOOD ST, SUITE 163, CSB
CHICAGO, IL 60612
Pharmacist (Pharmacotherapy)
840 S WOOD ST, SUITE 163 CLINICAL SCIENCES BUILDING
CHICAGO, IL 60612
Internal Medicine (Hematology & Oncology)
840 S WOOD ST, MC-713
CHICAGO, IL 60612
Internal Medicine (Gastroenterology)
840 S WOOD ST
CHICAGO, IL 60612
Student in an Organized Health Care Education/Training Program
840 S WOOD ST, MC 856
CHICAGO, IL 60612
Pathology (Anatomic Pathology)
840 S WOOD ST
CHICAGO, IL 60612

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 Nathaniel Koo's NPI number?

The NPI number for Nathaniel Koo is 1467626184. It was assigned to this individual provider in the NPPES registry on April 14, 2008.

Where is Nathaniel Koo located?

Nathaniel Koo practices at 840 S Wood St Suite 518-E, Chicago, IL 60612. The listed phone number is (312) 996-6765.

What is Nathaniel Koo's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Pediatric Surgery, with taxonomy code 2086S0120X.

Is Nathaniel Koo enrolled in Medicare?

Yes. Nathaniel Koo is registered in the Medicare PECOS enrollment system.

What insurance does Nathaniel Koo accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Home State Health list Nathaniel Koo 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 Nathaniel Koo was last updated on April 26, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.