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DR. ELLEN MARGARET NICASTRO MD
NPI 1861604423
Pediatrics in Saint Louis, MO

Active since May 04, 2007PECOS Enrolled
845 N NEW BALLAS CT, STE 205, SAINT LOUIS, MO 63141(314) 859-4460(833) 740-4372 Get Directions Write a Review

NPPES record last updated: April 18, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. Ellen Margaret Nicastro Md NPPES

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

DR. ELLEN MARGARET NICASTRO MD (NPI 1861604423) is an individual pediatrics provider in Saint Louis, Missouri, licensed in Missouri (2007010301) and active in the NPI registry since May 2007. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1861604423
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameDR. ELLEN MARGARET NICASTROCredential: MD
Location Address845 N NEW BALLAS CT, STE 205Saint Louis, MO 63141-7134
Mailing AddressPo Box 7412065Chicago, IL 60674-2065 · (314) 859-4460 · Fax (833) 740-4372
Phone(314) 859-4460
Fax(833) 740-4372
Sole ProprietorNo
Enumeration DateMay 4, 2007
Last NPPES UpdateApril 18, 2025
✔ NPI 1861604423 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in MO · 2007010301
Definition

A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.

845 N NEW BALLAS CT, Saint Louis, MO 63141
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Other Identifiers 1

Medicaid207278508MO

Accepted Insurance

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

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

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

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63141 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
$86.32 typical visit price
range $55.65 – $169.38
Typical copayment $21.58 (range $13.91 – $42.34)
Most-billed visit code 99203
Established Patient
$98.37 typical visit price
range $17.76 – $137.92
Typical copayment $24.59 (range $4.44 – $34.48)
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 20

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

CREVE COEUR SURGERY CENTER, LLC
Clinic/Center (Ambulatory Surgical)
845 N NEW BALLAS CT, SUITE 100
CREVE COEUR, MO 63141
St. Louis County (314) 872-7100
DR. DAVID CAPLIN M.D.
Surgery (Plastic and Reconstructive Surgery)
845 N NEW BALLAS CT, SUITE 300
SAINT LOUIS, MO 63141
St. Louis County (314) 569-0130
SCOTT WILLIAM ZEHNDER M.D.
Orthopaedic Surgery (Sports Medicine)
845 N NEW BALLAS CT, 2ND FLOOR
SAINT LOUIS, MO 63141
St. Louis County (314) 983-4700
CREVE COEUR SURGERY CENTER LLC
Clinic/Center (Ambulatory Surgical)
845 N NEW BALLAS CT, SUITE 100
CREVE COEUR, MO 63141
St. Louis County (314) 872-7100
DR. LAIRD HENRY VERMONT MD
Pediatrics
845 N NEW BALLAS CT, STE 205
SAINT LOUIS, MO 63141
St. Louis County (314) 859-4460
DR. KSENIJA KOS MD
Psychiatry & Neurology (Neurology)
845 N NEW BALLAS CT, DIV NEUROLOGY COMMUNITY, STE 202
SAINT LOUIS, MO 63141
St. Louis County (557) 747-2529
ELIZABETH ERKER
Dietitian, Registered
845 N NEW BALLAS CT, 2ND FLOOR
SAINT LOUIS, MO 63141
St. Louis County (314) 983-4700
DR. JAMES P EMANUEL M.D.
Orthopaedic Surgery
845 N NEW BALLAS CT, STE 130
CREVE COEUR, MO 63141
St. Louis County (314) 997-1777

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 Ellen Nicastro's NPI number?

The NPI number for Ellen Nicastro is 1861604423. It was assigned to this individual provider in the NPPES registry on May 4, 2007.

Where is Ellen Nicastro located?

Ellen Nicastro practices at 845 N New Ballas Ct Ste 205, Saint Louis, MO 63141. The listed phone number is (314) 859-4460.

What is Ellen Nicastro's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Ellen Nicastro enrolled in Medicare?

Yes. Ellen Nicastro is registered in the Medicare PECOS enrollment system.

What insurance does Ellen Nicastro accept?

Health plans from Cox HealthPlans list Ellen Nicastro 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 Ellen Nicastro was last updated on April 18, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.