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DR. KAROLINA AGATA PLONOWSKA-HIRSCHFELD MD
NPI 1043771520
Otolaryngology in Chicago, IL

Active since March 27, 2019PECOS EnrolledAccepts Medicare Assignment
1009 S WOOD ST, CHICAGO, IL 60612(314) 362-7509(314) 362-7522 Get Directions Write a Review

NPPES record last updated: September 7, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Sep 7, 2025, Jul 2, 2024, Jun 7, 2024 (3 updates tracked since 2024).

About Dr. Karolina Agata Plonowska-hirschfeld Md NPPES

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

DR. KAROLINA AGATA PLONOWSKA-HIRSCHFELD MD (NPI 1043771520) is an individual otolaryngology provider in Chicago, Illinois, licensed in Illinois (036176670) and active in the NPI registry since March 2019. She is enrolled in Medicare PECOS, is affiliated with University Of Illinois Hospital And Clinics, and is a graduate of University Of California, San Francisco School Of Medicine (2019).

NPPES Registry Identity

NPI1043771520
Entity TypeIndividualFemale
Primary Taxonomy207Y00000X
Provider Legal NameDR. KAROLINA AGATA PLONOWSKA-HIRSCHFELDCredential: MD
Location Address1009 S WOOD STChicago, IL 60612-3747
Mailing AddressPo Box 7412011Chicago, IL 60674-2011 · (314) 362-7509 · Fax (314) 362-7522
Phone(314) 362-7509
Fax(314) 362-7522
Sole ProprietorNo
Medical School CMSUniversity Of California, San Francisco School Of MedicineGraduated 2019
Enumeration DateMarch 27, 2019
Last NPPES UpdateSeptember 7, 20253 updates tracked since enumeration
NPPES CertifiedSeptember 7, 2025
✔ NPI 1043771520 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOtolaryngologyAllopathic & Osteopathic Physicians
Taxonomy Code207Y00000X
License✔ Licensed in IL · 036176670
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.
1009 S WOOD ST, Chicago, IL 60612
Open in Google Maps ↗

Other Identifiers 1

Medicaid200141313MO

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

Dr. Karolina Agata Plonowska-hirschfeld 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 ID2466868237
PECOS Enrollment IDI20250924001747
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

3

Medicare enrollment records show Karolina Plonowska-hirschfeld reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

The Board Of Trustees Of The University Of Illinois
Same address
Otolaryngology
1855 W TAYLOR ST
Chicago, IL 60612
  • Reassigned Medicare billing, Illinois enrollment
  • 27 clinicians in this Medicare group
NPI 1548480957 (312) 996-6582
Cook County
0.3 mi
Family Medicine
605 S WOLCOTT AVE, SUITE 605
Chicago, IL 60612
  • Reassigned Medicare billing, Illinois enrollment
  • 1,047 clinicians in this Medicare group
NPI 1912063439 (312) 864-4649
Mount Sinai Community Foundation Dba Sinai Medical Group
1.0 mi
Family Medicine
1859 S BLUE ISLAND AVE
Chicago, IL 60608
  • Reassigned Medicare billing, Illinois enrollment
  • Medicare enrollment name: Mount Sinai Community Foundation
  • 646 clinicians in this Medicare group
NPI 1407264583 (773) 738-3111

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

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

University Of Illinois Hospital And Clinics

Acute Care Hospitals · Chicago, IL
2/5 CMS rating
OwnershipGovernment - State
CMS Certification Number140150
Location1740 West Taylor St Suite 1400Chicago, IL 60612 · Cook County
Emergency services Birthing friendly

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.

SAMUEL JOHN OHLANDER M.D.
Urology
1009 S WOOD ST
CHICAGO, IL 60612
Cook County (312) 996-2779
BETTY SITU
Ophthalmology
1009 S WOOD ST
CHICAGO, IL 60612
Cook County (312) 996-3937
SAMANTHA ROBERTS
Student in an Organized Health Care Education/Training Program
1009 S WOOD ST
CHICAGO, IL 60612
Cook County (312) 996-2279
DR. AMBER TIFFANY RANDOLPH MD
Ophthalmology
1009 S WOOD ST
CHICAGO, IL 60612
Cook County (312) 996-7445
ANGELA YARU CHANG MD
Ophthalmology
1009 S WOOD ST
CHICAGO, IL 60612
Cook County (312) 996-7445
CHRISTOPHER CHUNG MD
Ophthalmology
1009 S WOOD ST
CHICAGO, IL 60612
Cook County (312) 996-3937
MS. ALEXANDRA CHRISTINA SCHENCK CCC-SLP
Speech-Language Pathologist
1009 S WOOD ST
CHICAGO, IL 60612
Cook County (312) 413-8459
DR. JANE SUH M.D.
Internal Medicine (Gastroenterology)
1009 S WOOD ST
CHICAGO, IL 60612
Cook County (866) 600-2273

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 Karolina Plonowska-hirschfeld's NPI number?

The NPI number for Karolina Plonowska-hirschfeld is 1043771520. It was assigned to this individual provider in the NPPES registry on March 27, 2019.

Where is Karolina Plonowska-hirschfeld located?

Karolina Plonowska-hirschfeld practices at 1009 S Wood St, Chicago, IL 60612. The listed phone number is (314) 362-7509.

What is Karolina Plonowska-hirschfeld's specialty?

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

Is Karolina Plonowska-hirschfeld enrolled in Medicare?

Yes. Karolina Plonowska-hirschfeld 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 Karolina Plonowska-hirschfeld's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Karolina Plonowska-hirschfeld reassigns Medicare benefits to 3 organizations: The Board Of Trustees Of The University Of Illinois (Chicago, IL), Cook County (Chicago, IL) and Mount Sinai Community Foundation Dba Sinai Medical Group (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 Karolina Plonowska-hirschfeld's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Karolina Plonowska-hirschfeld accept?

Health plans from Oscar Health list Karolina Plonowska-hirschfeld 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 Karolina Plonowska-hirschfeld affiliated with any hospitals?

According to CMS data, Karolina Plonowska-hirschfeld is affiliated with University Of Illinois Hospital And Clinics.

When was this NPI record last updated?

The NPPES record for Karolina Plonowska-hirschfeld was last updated on September 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.