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PATRICIA ZARZA M.D.
NPI 1821736240
Internal Medicine in Chicago, IL

Active since May 25, 2022PECOS EnrolledAccepts Medicare Assignment
1901 W. HARRISON STREET, JOHN H. STROGER JR. HOSPITAL OF COOK COUNTY, CHICAGO, IL 60612(312) 864-6000 Get Directions Write a Review

NPPES record last updated: June 17, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jun 17, 2025, Sep 13, 2022, May 25, 2022 (3 updates tracked since 2022).

About Patricia Zarza M.d. NPPES

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

PATRICIA ZARZA M.D. (NPI 1821736240) is an individual internal medicine provider in Chicago, Illinois, licensed in Illinois (036175231) and active in the NPI registry since May 2022. She is enrolled in Medicare PECOS, is affiliated with John H Stroger Jr Hospital, and is a graduate of Other (2014).

NPPES Registry Identity

NPI1821736240
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NamePATRICIA ZARZACredential: M.D.
Location Address1901 W. HARRISON STREET, JOHN H. STROGER JR. HOSPITAL OF COOK COUNTYChicago, IL 60612
Mailing Address1901 W. Harrison Street, John H. Stroger Jr. Hospital Of Cook CountyChicago, IL 60612 · (312) 864-6000
Phone(312) 864-6000
Sole ProprietorNo
Medical School CMSOtherGraduated 2014
Enumeration DateMay 25, 2022
Last NPPES UpdateJune 17, 20253 updates tracked since enumeration
NPPES CertifiedJune 17, 2025
✔ NPI 1821736240 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in IL · 036175231
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
1901 W. HARRISON STREET, Chicago, IL 60612
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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

Patricia Zarza 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 ID345626701
PECOS Enrollment IDI20250801003472
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.

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.

Other Providers at the Same Location NPPES 4

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

MRS. ELSY THOMAS JOSEPH NURSE PRACTITIONER
Nurse Practitioner (Psychiatric/Mental Health)
1901 W. HARRISON STREET, JHS JR. HOSPITAL OF COOK COUNTY, DEPT. OF PSYCHIATRY
CHICAGO, IL 60612
Cook County (312) 864-8000
DR. JUDITH LUCILLE NERAD MD
Internal Medicine (Infectious Disease)
1901 W. HARRISON STREET, JOHN H. STROGER, JR. HOSPITAL OF COOK COUNTY
CHICAGO, IL 60612
Cook County (312) 864-6000
DR. KSHITIJ NANDA
Internal Medicine
1901 W. HARRISON STREET, JOHN. H STROGER HOSPITAL
CHICAGO, IL 60612
Cook County (312) 864-6000
DR. GIJO GEORGE VETTIANKAL M.D.
Internal Medicine (Gastroenterology)
1901 W. HARRISON STREET, JOHN H. STROGER HOSPITAL OF COOK COUNTY,
CHICAGO, IL 60612
Cook County (312) 864-6000

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 Patricia Zarza's NPI number?

The NPI number for Patricia Zarza is 1821736240. It was assigned to this individual provider in the NPPES registry on May 25, 2022.

Where is Patricia Zarza located?

Patricia Zarza practices at 1901 W. Harrison Street John H. Stroger Jr. Hospital Of Cook County, Chicago, IL 60612. The listed phone number is (312) 864-6000.

What is Patricia Zarza's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Patricia Zarza enrolled in Medicare?

Yes. Patricia Zarza 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.

Is Patricia Zarza affiliated with any hospitals?

According to CMS data, Patricia Zarza is affiliated with John H Stroger Jr Hospital.

When was this NPI record last updated?

The NPPES record for Patricia Zarza was last updated on June 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.