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

JENNIFER SEDLACEK FNP-C, PMHNP-BC
NPI 1689100083
Nurse Practitioner in Alton, IL

Q: What is Jennifer Sedlacek's NPI number?

The NPI number for Jennifer Sedlacek is 1689100083. It was assigned to this individual provider in the NPPES registry on May 4, 2017.

Q: What is Jennifer Sedlacek's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Q: When was this NPI record last updated?

The NPPES record for Jennifer Sedlacek was last updated on September 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.

Active since May 04, 2017PECOS Enrolled

1 PROFESSIONAL DR, ALTON, IL 62002(314) 996-4545(314) 273-0140 Get Directions Write a Review

NPPES record last updated: September 15, 2026. Verified against the NPPES registry weekly; last sync: September 20, 2026.

Record update history: Sep 15, 2026, Dec 30, 2024, Jun 12, 2024 and 2 more (5 updates tracked since 2017).

On this page

About Jennifer Sedlacek Fnp-c, Pmhnp-bc NPPES

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

JENNIFER SEDLACEK FNP-C, PMHNP-BC (NPI 1689100083) is an individual nurse practitioner in Alton, Illinois, licensed in Illinois (209016337) and active in the NPI registry since May 2017. She is enrolled in Medicare PECOS, maintains a secondary practice location in Richmond Heights, and is a graduate of Other (2017).

NPPES Registry Identity

NPI1689100083

Entity TypeIndividualFemale

Primary Taxonomy363L00000X

Provider Legal NameJENNIFER SEDLACEKCredential: FNP-C, PMHNP-BC

Location Address1 PROFESSIONAL DRAlton, IL 62002-5068

Mailing AddressPo Box 959203Saint Louis, MO 63195-9203 · (314) 996-4545 · Fax (314) 273-0140

Phone(314) 996-4545

Fax(314) 273-0140

Sole ProprietorNo

Medical School CMSOtherGraduated 2017

Enumeration DateMay 4, 2017

Last NPPES UpdateSeptember 15, 20265 updates tracked since enumeration

NPPES CertifiedSeptember 15, 2026

✔ NPI 1689100083 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363L00000X

License✔ Licensed in IL · 209016337

Definition

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

Also ListedNurse Practitioner · Psychiatric/Mental HealthTaxonomy 363LP0808X · License 209016337 (IL), 2017027608 (MO)

1 PROFESSIONAL DR, Alton, IL 62002

Open in Google Maps ↗

Secondary Practice Location 1

Location 11034 S Brentwood Blvd Ste 1250Richmond Heights, MO 63117-1263 · Phone (636) 939-2550

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Jennifer Sedlacek Fnp-c, Pmhnp-bc is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8729352315

PECOS Enrollment IDI20170920002458, I20231002002673

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 62002 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

$88.44 typical visit price

range $56.28 – $173.35

Typical copayment $22.11 (range $14.07 – $43.33)

Most-billed visit code 99203

Established Patient

$99.71 typical visit price

range $17.51 – $139.99

Typical copayment $24.92 (range $4.37 – $34.99)

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.

DR. JAMES A KLIEFOTH MD

Surgery

1 PROFESSIONAL DR, STE 150
ALTON, IL 62002

Madison County (618) 463-8660

DR. WILLIAM RAY BARTLEY MD

Internal Medicine

1 PROFESSIONAL DR, SUITE 220
ALTON, IL 62002

Madison County (618) 463-8626

MEGAN SAUER ROSENOW DO

Obstetrics & Gynecology

1 PROFESSIONAL DR
ALTON, IL 62002

Madison County (618) 463-8555

ALTON MULTISPECIALISTS, LTD.

Clinic/Center (Radiology, Mammography)

1 PROFESSIONAL DR
ALTON, IL 62002

Madison County (618) 463-8500

MADALYN SHAW

Physical Therapist

1 PROFESSIONAL DR
ALTON, IL 62002

Madison County (618) 462-4621

ELIZABETH ANNE SCHRUMPF CNP

Nurse Practitioner (Family)

1 PROFESSIONAL DR
ALTON, IL 62002

Madison County (618) 463-8574

DR. KELLY J LINDSEY MD

Pediatrics

1 PROFESSIONAL DR, SUITE 250
ALTON, IL 62002

Madison County (618) 463-8636

ABIGAIL MARIE LORENTZ

Physical Therapist

1 PROFESSIONAL DR, SUITE 10
ALTON, IL 62002

Madison County (618) 462-4621

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 Sedlacek's NPI number?

The NPI number for Jennifer Sedlacek is 1689100083. It was assigned to this individual provider in the NPPES registry on May 4, 2017.

Where is Jennifer Sedlacek located?

Jennifer Sedlacek practices at 1 Professional Dr, Alton, IL 62002. The listed phone number is (314) 996-4545.

What is Jennifer Sedlacek's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Jennifer Sedlacek enrolled in Medicare?

Yes. Jennifer Sedlacek is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Jennifer Sedlacek was last updated on September 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.