MACKENZIE ANNE O'CONNOR
NPI 1801421516
Otolaryngology in Chicago, IL

Q: What is Mackenzie O'connor's NPI number?

The NPI number for Mackenzie O'connor is 1801421516. It was assigned to this individual provider in the NPPES registry on March 3, 2020.

Q: What is Mackenzie O'connor's specialty?

The primary specialty registered for this NPI is Otolaryngology with taxonomy code 207Y00000X.

Active since March 03, 2020PECOS Enrolled

1611 W HARRISON ST STE 550, CHICAGO, IL 60612(312) 942-6100 Get Directions Write a Review

NPPES record last updated: June 22, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Apr 14, 2021, Mar 3, 2020 (2 updates tracked since 2020).

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About Mackenzie Anne O'connor NPPES

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

MACKENZIE ANNE O'CONNOR (NPI 1801421516) is an individual otolaryngology provider in Chicago, Illinois, licensed in Illinois (036-180602) and active in the NPI registry since March 2020. She is enrolled in Medicare PECOS, maintains a secondary practice location in New York, and is a graduate of Other (2021).

NPPES Registry Identity

NPI1801421516

Entity TypeIndividualFemale

Primary Taxonomy207Y00000X

Provider Legal NameMACKENZIE ANNE O'CONNOR

Location Address1611 W HARRISON ST STE 550Chicago, IL 60612-4861

Mailing Address1611 W Harrison St Ste 550Chicago, IL 60612-4861 · (312) 942-6100

Phone(312) 942-6100

Sole ProprietorNo

Medical School CMSOtherGraduated 2021

Enumeration DateMarch 3, 2020

Last NPPES UpdateJune 22, 20262 updates tracked since enumeration

NPPES CertifiedJune 22, 2026

✔ NPI 1801421516 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOtolaryngologyAllopathic & Osteopathic Physicians

Taxonomy Code207Y00000X

License✔ Licensed in IL · 036-180602

Definition

An otolaryngologist-head and neck surgeon provides comprehensive medical and surgical care for patients with diseases and disorders that affect the ears, nose, throat, the respiratory and upper alimentary systems and related structures of the head and neck. An otolaryngologist diagnoses and provides medical and/or surgical therapy or prevention of diseases, allergies, neoplasms, deformities, disorders and/or injuries of the ears, nose, sinuses, throat, respiratory and upper alimentary systems, face, jaws and the other head and neck systems. Head and neck oncology, facial plastic and reconstructive surgery and the treatment of disorders of hearing and voice are fundamental areas of expertise.

1611 W HARRISON ST STE 550, Chicago, IL 60612

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Secondary Practice Location 1

Location 1550 1st AveNew York, NY 10016-6402 · Phone (212) 263-5506

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)

Mackenzie Anne O'connor is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID6901370493

PECOS Enrollment IDI20260707000266

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

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

Rush Medical Group

0.1 mi

Internal Medicine

1620 W HARRISON ST
Chicago, IL 60612

Reassigned Medicare billing, Illinois enrollment
548 clinicians in this Medicare group

NPI 1467312850 (312) 942-5000

Rush University Medical Group

0.1 mi

Internal Medicine

1620 W HARRISON ST
Chicago, IL 60612

Reassigned Medicare billing, Illinois enrollment
2,169 clinicians in this Medicare group

NPI 1093819542 (312) 942-5000

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 60612 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

$74.80 typical visit price

range $18.97 – $148.12

Typical copayment $18.70 (range $4.74 – $37.03)

Most-billed visit code 99213

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.

NICHOLAS ROBERT CURRAN MD

Otolaryngology (Otolaryngology/Facial Plastic Surgery)