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DR. MEGAN THERESE DANZO ARGUELLO MD
NPI 1831716943
Pediatrics in Saint Louis, MO

Active since July 06, 2020PECOS Enrolled
1 CHILDRENS PL, DIV PED EMERGENCY MED, SAINT LOUIS, MO 63110(314) 454-6000(314) 747-3338 Get Directions Write a Review

NPPES record last updated: April 17, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Dec 30, 2024, Feb 14, 2023, Jul 6, 2020 (3 updates tracked since 2020).

About Dr. Megan Therese Danzo Arguello Md NPPES

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

DR. MEGAN THERESE DANZO ARGUELLO MD (NPI 1831716943) is an individual pediatrics provider in Saint Louis, Missouri, licensed in Missouri (2021031322) and active in the NPI registry since July 2020. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1831716943
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameDR. MEGAN THERESE DANZO ARGUELLOCredential: MD
Location Address1 CHILDRENS PL, DIV PED EMERGENCY MEDSaint Louis, MO 63110-1002
Mailing AddressPo Box 7412011Chicago, IL 60674-2011 · (314) 454-6000 · Fax (314) 747-3338
Phone(314) 454-6000
Fax(314) 747-3338
Sole ProprietorNo
Enumeration DateJuly 6, 2020
Last NPPES UpdateApril 17, 20253 updates tracked since enumeration
NPPES CertifiedMay 19, 2023
✔ NPI 1831716943 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in MO · 2021031322
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.
1 CHILDRENS PL, Saint Louis, MO 63110
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Other Identifiers 1

Medicaid200083436MO

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Megan Therese Danzo Arguello 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.

Medicare Billing Reassignment

Medicare enrollment records show Megan Danzo Arguello reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Washington University
Same address
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

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63110 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.

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 Megan Danzo Arguello's NPI number?

The NPI number for Megan Danzo Arguello is 1831716943. It was assigned to this individual provider in the NPPES registry on July 6, 2020.

Where is Megan Danzo Arguello located?

Megan Danzo Arguello practices at 1 Childrens Pl Div Ped Emergency Med, Saint Louis, MO 63110. The listed phone number is (314) 454-6000.

What is Megan Danzo Arguello's specialty?

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

Is Megan Danzo Arguello enrolled in Medicare?

Yes. Megan Danzo Arguello is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Megan Danzo Arguello's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Megan Danzo Arguello reassigns Medicare benefits to Washington University (Saint Louis, MO). The 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 Megan Danzo Arguello's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Megan Danzo Arguello was last updated on April 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.