DR. MARGARET ELIZABETH GEGICK MD
NPI 1801415435
Pediatrics - Neonatal-Perinatal Medicine in Saint Louis, MO

Q: What is Margaret Gegick's NPI number?

The NPI number for Margaret Gegick is 1801415435. It was assigned to this individual provider in the NPPES registry on April 14, 2020.

Q: What is Margaret Gegick's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Neonatal-Perinatal Medicine, with taxonomy code 2080N0001X.

Q: When was this NPI record last updated?

The NPPES record for Margaret Gegick was last updated on August 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.

Active since April 14, 2020PECOS Enrolled

1 CHILDRENS PL, DIV PED NEWBORN MEDICINE, SAINT LOUIS, MO 63110(314) 454-2683(314) 454-4633 Get Directions Write a Review

NPPES record last updated: August 11, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 11, 2026, Apr 14, 2020 (2 updates tracked since 2020).

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About Dr. Margaret Elizabeth Gegick Md NPPES

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

DR. MARGARET ELIZABETH GEGICK MD (NPI 1801415435) is an individual neonatal-perinatal medicine provider in Saint Louis, Missouri, licensed in Missouri (2026015900) and active in the NPI registry since April 2020. She is enrolled in Medicare PECOS and is a graduate of Tufts University School Of Medicine (2020).

NPPES Registry Identity

NPI1801415435

Entity TypeIndividualFemale

Primary Taxonomy2080N0001X

Provider Legal NameDR. MARGARET ELIZABETH GEGICKCredential: MD

Location Address1 CHILDRENS PL, DIV PED NEWBORN MEDICINESaint Louis, MO 63110-1002

Mailing AddressPo Box 7412011Chicago, IL 60674-2011 · (314) 454-2683 · Fax (314) 454-4633

Phone(314) 454-2683

Fax(314) 454-4633

Sole ProprietorNo

Medical School CMSTufts University School Of MedicineGraduated 2020

Enumeration DateApril 14, 2020

Last NPPES UpdateAugust 11, 20262 updates tracked since enumeration

NPPES CertifiedJune 30, 2023

✔ NPI 1801415435 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Neonatal-Perinatal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code2080N0001X

License✔ Licensed in MO · 2026015900

Definition

A pediatrician who is the principal care provider for sick newborn infants. Clinical expertise is used for direct patient care and for consulting with obstetrical colleagues to plan for the care of mothers who have high-risk pregnancies.

1 CHILDRENS PL, Saint Louis, MO 63110

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Margaret Elizabeth Gegick Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID42641904

PECOS Enrollment IDI20260624003324

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

Medicare enrollment records show Margaret Gegick reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Washington University

0.1 mi

Multi-Specialty

1 CHILDRENS PL
Saint Louis, MO 63110

Reassigned Medicare billing, Missouri enrollment
628 clinicians in this Medicare group

NPI 1194765685 (314) 286-1264

Washington University Physicians In Illinois, Inc

0.2 mi

Multi-Specialty

4511 FOREST PARK AVE
Saint Louis, MO 63108

Reassigned Medicare billing, Illinois enrollment
530 clinicians in this Medicare group

NPI 1174015515 (314) 362-9715

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

ARIE BAKER MSW, LCSW

Social Worker (Clinical)

1 CHILDRENS PL, CAMPUS BOX 8116
SAINT LOUIS, MO 63110

St. Louis City (314) 747-6169

SUSAN CHEUNG WALSH AUD

Audiologist-Hearing Aid Fitter

1 CHILDRENS PL
SAINT LOUIS, MO 63110

St. Louis City (314) 454-4649

MS. JENNIFER MARIE JACOBI PNP

Nurse Practitioner (Pediatrics)

1 CHILDRENS PL, DEPT NEUROLOGICAL SURGERY, STE 4E
SAINT LOUIS, MO 63110

St. Louis City (314) 362-3577

MS. EMILY LINCOLN RN, NNP-BC

Nurse Practitioner (Neonatal, Critical Care)

1 CHILDRENS PL
SAINT LOUIS, MO 63110

St. Louis City (314) 454-6000

MS. MARISSA ROSE PEREZ-MAGNELLI PNP

Nurse Practitioner (Pediatrics)

1 CHILDRENS PL, DEPT NEUROLOGY, STE 2130
SAINT LOUIS, MO 63110

St. Louis City (314) 454-6120

MRS. BRIANNA LYNN RICHTER NNP-BC

Nurse Practitioner (Neonatal)

1 CHILDRENS PL
SAINT LOUIS, MO 63110

St. Louis City (314) 454-6000

DR. WILLIAM L RIVES MD

Hospitalist

1 CHILDRENS PL, DIV PED HOSPITALIST MED
SAINT LOUIS, MO 63110

St. Louis City (314) 454-2076

DR. PETER M KILBRIDGE MD

Pediatrics

1 CHILDRENS PL, SUITE C
SAINT LOUIS, MO 63110

St. Louis City (314) 454-2479

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 Margaret Gegick's NPI number?

The NPI number for Margaret Gegick is 1801415435. It was assigned to this individual provider in the NPPES registry on April 14, 2020.

Where is Margaret Gegick located?

Margaret Gegick practices at 1 Childrens Pl Div Ped Newborn Medicine, Saint Louis, MO 63110. The listed phone number is (314) 454-2683.

What is Margaret Gegick's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Neonatal-Perinatal Medicine, with taxonomy code 2080N0001X.

Is Margaret Gegick enrolled in Medicare?

Yes. Margaret Gegick is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Margaret Gegick's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Margaret Gegick reassigns Medicare benefits to 2 organizations: Washington University (Saint Louis, MO) and Washington University Physicians In Illinois, Inc (Saint Louis, MO). 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 Margaret Gegick's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Margaret Gegick accept?

Health plans from UnitedHealthcare list Margaret Gegick 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.

When was this NPI record last updated?

The NPPES record for Margaret Gegick was last updated on August 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.