DR. KATAYOUN REZAI M.D.
NPI 1730111576
Internal Medicine - Infectious Disease in Chicago, IL

Q: What is Katayoun Rezai's NPI number?

The NPI number for Katayoun Rezai is 1730111576. It was assigned to this individual provider in the NPPES registry on July 6, 2006.

Q: What is Katayoun Rezai's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Q: When was this NPI record last updated?

The NPPES record for Katayoun Rezai was last updated on April 28, 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.

Active since July 06, 2006PECOS EnrolledAccepts Medicare Assignment

84.57/100

CMS Quality Rating

1901 W HARRISON ST, CHICAGO, IL 60612(312) 864-6000 Get Directions Write a Review

NPPES record last updated: April 28, 2021. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Apr 28, 2021, Sep 14, 2020 (2 updates tracked since 2020).

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About Dr. Katayoun Rezai M.d. NPPES

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

DR. KATAYOUN REZAI M.D. (NPI 1730111576) is an individual infectious disease provider in Chicago, Illinois, licensed in Illinois (036104419) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS, is affiliated with John H Stroger Jr Hospital, and is a graduate of Rush Medical College Of Rush University (1998).

NPPES Registry Identity

NPI1730111576

Entity TypeIndividualFemale

Primary Taxonomy207RI0200X

Provider Legal NameDR. KATAYOUN REZAICredential: M.D.

Location Address1901 W HARRISON STChicago, IL 60612-3714

Mailing Address195 N Harbor Dr, #301Chicago, IL 60601-7514 · (312) 864-4552 · Fax (312) 864-9496

Phone(312) 864-6000

Sole ProprietorYes

Medical School CMSRush Medical College Of Rush UniversityGraduated 1998

Enumeration DateJuly 6, 2006

Last NPPES UpdateApril 28, 20212 updates tracked since enumeration

NPPES CertifiedApril 28, 2021

✔ NPI 1730111576 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RI0200X

License✔ Licensed in IL · 036104419

Definition

An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.

Also ListedInternal MedicineTaxonomy 207R00000X · License 036-104419 (IL)

1901 W HARRISON ST, Chicago, IL 60612

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Home State Health, Ambetter Health, Ambetter Health of Delaware.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Katayoun Rezai M.d. 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 ID4284609231

PECOS Enrollment IDI20040901000788

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.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

11 services11 patients

Hospital Affiliations CMS Care Compare

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

John H Stroger Jr Hospital

Acute Care Hospitals · Chicago, IL

2/5 CMS rating

OwnershipGovernment - Local

CMS Certification Number140124

Location1901 W Harrison StChicago, 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

$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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

84.57/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

60.25

Promoting Interoperability

100

Improvement Activities

Cost

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.

JOHANNA WEFES-POTTER

Emergency Medicine

1901 W HARRISON ST
CHICAGO, IL 60612

Cook County (847) 843-2000

ARON BERHANU GUDETTA MD

Internal Medicine

1901 W HARRISON ST
CHICAGO, IL 60612

Cook County (312) 864-6000

DR. LIGAYA VILLAFRANCA MARASIGAN M.D.

Obstetrics & Gynecology (Gynecology)

1901 W HARRISON ST
CHICAG, IL 60612

Cook County (312) 864-5901

TIN TIN THOMAS M.D.

Internal Medicine

1901 W HARRISON ST
CHICAGO, IL 60612

Cook County (312) 864-6000

COOK COUNTY

Pharmacy (Clinic Pharmacy)

1901 W HARRISON ST
CHICAGO, IL 60612

Cook County (312) 864-6189

HELEN ELIZABETH STRAUS MD

Emergency Medicine

1901 W HARRISON ST
CHICAGO, IL 60612

Cook County (312) 864-0060

MR. GLEN DERRICK TRAMMELL PA-C

Physician Assistant

1901 W HARRISON ST
CHICAGO, IL 60612

Cook County (773) 869-7488

JOHN H STROGER, JR. HOSPITAL OF COOK COUNTY

General Acute Care Hospital

1901 W HARRISON ST
CHICAGO, IL 60612

Cook County (773) 319-2085

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 Katayoun Rezai's NPI number?

The NPI number for Katayoun Rezai is 1730111576. It was assigned to this individual provider in the NPPES registry on July 6, 2006.

Where is Katayoun Rezai located?

Katayoun Rezai practices at 1901 W Harrison St, Chicago, IL 60612. The listed phone number is (312) 864-6000.

What is Katayoun Rezai's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Katayoun Rezai enrolled in Medicare?

Yes. Katayoun Rezai 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.

What insurance does Katayoun Rezai accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Home State Health list Katayoun Rezai 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 Katayoun Rezai affiliated with any hospitals?

According to CMS data, Katayoun Rezai is affiliated with John H Stroger Jr Hospital.

When was this NPI record last updated?

The NPPES record for Katayoun Rezai was last updated on April 28, 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.