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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

JENNIFER C SIEGEL LCSW
NPI 1891109385
Social Worker - Clinical in Saint Louis, MO

Active since June 12, 2014PECOS Enrolled
1001 LYNCH ST APT 723, SAINT LOUIS, MO 63118(314) 535-5600 Get Directions Write a Review

NPPES record last updated: July 24, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Jul 24, 2026, May 7, 2026 (2 updates tracked since 2026).

About Jennifer C Siegel Lcsw NPPES

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

JENNIFER C SIEGEL LCSW (NPI 1891109385) is an individual clinical provider in Saint Louis, Missouri, licensed in Missouri (2017018006) and active in the NPI registry since June 2014. She is enrolled in Medicare PECOS, maintains a secondary practice location in Saint Louis, and is a graduate of Other (2014).

NPPES Registry Identity

NPI1891109385
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameJENNIFER C SIEGELCredential: LCSW
Location Address1001 LYNCH ST APT 723Saint Louis, MO 63118-1818
Mailing AddressPo Box 844715Kansas City, MO 64184-4715 · (417) 761-5214 · Fax (417) 761-5065
Phone(314) 535-5600
Sole ProprietorNo
Medical School CMSOtherGraduated 2014
Enumeration DateJune 12, 2014
Last NPPES UpdateJuly 24, 20262 updates tracked since enumeration
NPPES CertifiedJuly 24, 2026
✔ NPI 1891109385 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in MO · 2017018006
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
1001 LYNCH ST APT 723, Saint Louis, MO 63118
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Other Names 1

Former Name (1)Jennifer C Nestor

Secondary Practice Location 1

Location 110024 Office Center Ave Ste 100Saint Louis, MO 63128-1392 · Phone (314) 729-7050 · Fax (314) 729-0920

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Jennifer C Siegel Lcsw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID4789155896
PECOS Enrollment IDI20260609002077
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 63118 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
$0.00 typical visit price
range $55.65 – $169.38
Typical copayment $0.00 (range $13.91 – $42.34)
Most-billed visit code NA
Established Patient
$69.50 typical visit price
range $17.76 – $137.92
Typical copayment $17.37 (range $4.44 – $34.48)
Most-billed visit code 99213
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 Jennifer Siegel's NPI number?

The NPI number for Jennifer Siegel is 1891109385. It was assigned to this individual provider in the NPPES registry on June 12, 2014. The provider is also known as Jennifer C Nestor.

Where is Jennifer Siegel located?

Jennifer Siegel practices at 1001 Lynch St Apt 723, Saint Louis, MO 63118. The listed phone number is (314) 535-5600.

What is Jennifer Siegel's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

Is Jennifer Siegel enrolled in Medicare?

Yes. Jennifer Siegel is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Jennifer Siegel was last updated on July 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 34 days 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.