DR. CONSTANCE AGNES PIETRZAK (M.D.) – Gastroenterology Physician, NPI 1174788343

Gastroenterology Physician

DR. CONSTANCE AGNES PIETRZAK (M.D.) is a healthcare provider. based in Maywood, Illinois. specializing in Gastroenterology Physician. They hold the professional credentials M.D.. They hold a License No. 125053383 (IL). The NPI Number for DR. CONSTANCE AGNES PIETRZAK (M.D.) is 1174788343

Main info

Female

Sole Proprietor

19 Years Of Experience

Accepts Medicare Assignment

Name

DR. CONSTANCE AGNES PIETRZAK (M.D.)

NPI

1174788343

Phone

(708) 216-9000

Address

2160 S 1ST AVE

Enumeration Date

27 July 2008

Last Update Date

17 December 2021

Doctor Profile

Medical School Name

LOYOLA UNIVERSITY OF CHICAGO, STRITCH SCHOOL OF MEDICINE

Secondary Phone

8474591160

Graduation Year

2007 (19 years ago)

PAC ID

4789819764

Group Practice PAC ID

7810800935

Professional Enrollment ID

I20131029000467

Contacts

FHIR Endpoint

https://epicfhir.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/

Secure Messaging

cpietrzak205124@direct.myadvocateaurora.org

Data current as of

20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology

Experience67

Completeness85

Years active:17State licenses:2Other namesUpdated within 12 months

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Provider Addresses for DR. CONSTANCE AGNES PIETRZAK (M.D.)

2160, South 1st Avenue, Maywood, Proviso Township, Cook County, Illinois, 60153, United States
MAYWOOD, IL 601533328
Phone: (708) 216-9000
Type: Location
17850 KEDZIE AVE STE 2100
HAZEL CREST, IL 604292056
Phone: (708) 957-4011
Type: Location
546-548, West Cornelia Avenue, Boystown, Lake View, Lakeview, Chicago, Lake View Township, Cook County, Illinois, 60657, United States
APT 2E
CHICAGO, IL 606572751
Phone:
Type: Mailing

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

No Medicare enrollment or revalidation data available for this provider in our database.

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 60153)

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Provider's Procedures

DR. CONSTANCE AGNES PIETRZAK (M.D.) performs procedures in Gastroenterology Physician. See the list of HCPCS codes below.

Specialty	Practice State	HCPCS Code	Description	Service Count	Beneficiary Count
GASTROENTEROLOGY	IL	45385	Removal of polyps or growths of large bowel using an endoscope	28	28

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.

PAC ID: 7810800935View full group profile

Name	Specialty	State
DARSHIKA CHHABRA (MD)	Nephrology, Internal Medicine	IL
DR. ANNA MAE STEGEMANN (D.O.)	A N E S T H E S I O L O G Y	IL
ANGELIKA ALEXANDRA FOLEY (APN)	-	MN
MS. SUSAN A MACK (APRN-FPA)	-	IL
BETH MARIE HILLMAN (DO)	-	IL
MIHAELA MIHAILESCU (MD)	Rheumatology, Internal Medicine	IL
MR. DAVID AMBROSE HODGSON (L.C.S.W.)	-	IL
WILLIAM T O'ROURKE (MD)	Internal Medicine	IL
DR. UTPAL H DHRUVE (M.D.)	P S Y C H I A T R Y	IL
DR. PHILIPPE TAPON (M.D.)	-	IL

Reviews

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Frequently asked questions

What is the 10-digit NPI for DR. CONSTANCE AGNES PIETRZAK (M.D.)?

DR. CONSTANCE AGNES PIETRZAK (M.D.) — NPI 1174788343 — is the standard way to identify this listing.

Is DR. CONSTANCE AGNES PIETRZAK (M.D.) still practicing?

DR. CONSTANCE AGNES PIETRZAK (M.D.) is currently listed as active in the public NPI registry.

What healthcare role does DR. CONSTANCE AGNES PIETRZAK (M.D.) hold?

Scheduling teams often label DR. CONSTANCE AGNES PIETRZAK (M.D.) under Gastroenterology Physician. Clinical services aligned with this taxonomy classification.

Where should I expect DR. CONSTANCE AGNES PIETRZAK (M.D.) on a map?

Expect Maywood, Illinois as a primary anchor for DR. CONSTANCE AGNES PIETRZAK (M.D.) unless the record lists multiple sites.

What does 'Individual Provider' mean on this profile?

Entity type tells you whether the number belongs to a person or an organization.