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Northwestern Perinatal Associates, S.C.

Maternal & Fetal Medicine Physician in Chicago, IL · enumerated 2007 · authorized official Judi Gretz, Practice Manager.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1457565426

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Registry record

Entity type Organization (Type 2)
Legal business name Northwestern Perinatal Associates, S.C.
Practice address 680 N Lake Shore Drive, Suite 1428, Chicago, IL, 60611
Phone (312) 981-4350
Fax (312) 981-4363
Enumeration date May 9, 2007
Last updated in NPPES Apr 27, 2010

Taxonomy & classification

207VG0400X Gynecology Physician Allopathic & Osteopathic Physicians · License 036-058725 (IL) Secondary
207VH0002X Hospice and Palliative Medicine (Obstetrics & Gynecology) Physician Allopathic & Osteopathic Physicians · License 036058725 (IL) Secondary
207VM0101X Maternal & Fetal Medicine Physician Allopathic & Osteopathic Physicians · License 036-058725 (IL) Primary
207VX0000X Obstetrics Physician Allopathic & Osteopathic Physicians · License 036-058725 (IL) Secondary

Authorized official

Name Judi Gretz
Title Practice Manager
Phone (312) 981-4350

Other identifiers

Identifier Type State Issuer
036058725 Medicaid IL -

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What is the NPI number for Northwestern Perinatal Associates, S.C.?
The NPI for Northwestern Perinatal Associates, S.C. is 1457565426, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Northwestern Perinatal Associates, S.C.?
NPPES lists Judi Gretz (Practice Manager) as the authorized official for this organization.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-04-27.