DR. GREGORY JOSEPH WEISSLER II MD
NPI 1861029514
Pediatrics in Fenton, MO

Q: What is Gregory Weissler's NPI number?

The NPI number for Gregory Weissler is 1861029514. It was assigned to this individual provider in the NPPES registry on March 24, 2020.

Q: What is Gregory Weissler's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Gregory Weissler was last updated on September 25, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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 March 24, 2020PECOS Enrolled

1345 SMIZER MILL RD STE 1200, FENTON, MO 63026(636) 496-5021 Get Directions Write a Review

NPPES record last updated: September 25, 2023. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Dr. Gregory Joseph Weissler Ii Md NPPES

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

DR. GREGORY JOSEPH WEISSLER II MD (NPI 1861029514) is an individual pediatrics provider in Fenton, Missouri, licensed in Missouri (2023013879) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1861029514

Entity TypeIndividualMale

Primary Taxonomy208000000X

Provider Legal NameDR. GREGORY JOSEPH WEISSLER IICredential: MD

Location Address1345 SMIZER MILL RD STE 1200Fenton, MO 63026-7305

Mailing AddressPo Box 955534Saint Louis, MO 63195-5534

Phone(636) 496-5021

Sole ProprietorYes

Enumeration DateMarch 24, 2020

Last NPPES UpdateSeptember 25, 2023

NPPES CertifiedJuly 6, 2023

✔ NPI 1861029514 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians

Taxonomy Code208000000X

License✔ Licensed in MO · 2023013879

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.

1345 SMIZER MILL RD STE 1200, Fenton, MO 63026

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Oscar Insurance Company.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. Gregory Joseph Weissler Ii 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 63026 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.

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 Gregory Weissler's NPI number?

The NPI number for Gregory Weissler is 1861029514. It was assigned to this individual provider in the NPPES registry on March 24, 2020.

Where is Gregory Weissler located?

Gregory Weissler practices at 1345 Smizer Mill Rd Ste 1200, Fenton, MO 63026. The listed phone number is (636) 496-5021.

What is Gregory Weissler's specialty?

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

Is Gregory Weissler enrolled in Medicare?

Yes. Gregory Weissler is registered in the Medicare PECOS enrollment system.

What insurance does Gregory Weissler accept?

Health plans from Anthem Blue Cross and Blue Shield and Oscar Insurance Company list Gregory Weissler 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 Gregory Weissler was last updated on September 25, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.