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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 LYNN SEIB FNP
NPI 1346796562
Nurse Practitioner - Family in Saint Louis, MO

Active since August 28, 2016PECOS EnrolledAccepts Medicare Assignment
8021 WATSON RD, SAINT LOUIS, MO 63119(866) 389-2727 Get Directions Write a Review

NPPES record last updated: October 14, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 14, 2026, Nov 6, 2018, Nov 1, 2018 and 1 more (4 updates tracked since 2016).

About Jennifer Lynn Seib Fnp NPPES

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

JENNIFER LYNN SEIB FNP (NPI 1346796562) is an individual family provider in Saint Louis, Missouri, licensed in Missouri (2016027453) and active in the NPI registry since August 2016. She is enrolled in Medicare PECOS, is affiliated with Mercy Hospital St Louis, and is a graduate of Other (2016).

NPPES Registry Identity

NPI1346796562
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameJENNIFER LYNN SEIBCredential: FNP
Location Address8021 WATSON RDSaint Louis, MO 63119-5304
Mailing Address8021 Watson RdSaint Louis, MO 63119-5304
Phone(866) 389-2727
Sole ProprietorNo
Medical School CMSOtherGraduated 2016
Enumeration DateAugust 28, 2016
Last NPPES UpdateOctober 14, 20264 updates tracked since enumeration
NPPES CertifiedOctober 14, 2026
✔ NPI 1346796562 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in MO · 2016027453
8021 WATSON RD, Saint Louis, MO 63119
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Jennifer Lynn Seib Fnp 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 ID4082992037
PECOS Enrollment IDI20161026003038
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 Reassignments

4

Medicare enrollment records show Jennifer Seib reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Mercy Clinic East Communities
4.7 mi
Family Medicine
10004 KENNERLY RD STE 395B
Saint Louis, MO 63128
  • Reassigned Medicare billing, Missouri enrollment
  • 744 clinicians in this Medicare group
NPI 1720635329 (314) 849-3500
Ssm Medical Group, Inc.
7.8 mi
Multi-Specialty
1011 BOWLES AVE, SUITE 300
Fenton, MO 63026
  • Reassigned Medicare billing, Missouri enrollment
  • 697 clinicians in this Medicare group
NPI 1700966207 (636) 496-5000
Mercy East Ambulatory Services LLC
13 mi
Urgent Care
1722 CLARKSON RD
Chesterfield, MO 63017
  • Reassigned Medicare billing, Missouri enrollment
  • 169 clinicians in this Medicare group
NPI 1134673148 (636) 206-2665
Our Urgent Care, LLC
33 mi
Urgent Care
1111 W PEARCE BLVD
Wentzville, MO 63385
  • Reassigned Medicare billing, Missouri enrollment
  • 46 clinicians in this Medicare group
NPI 1902815863 (252) 813-9104

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

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
54 services50 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
28 services26 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
15 services15 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Mercy Hospital St Louis

Acute Care Hospitals · Saint Louis, MO
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260020
Location615 New Ballas RoadSaint Louis, MO 63141 · St. Louis County
Emergency services Birthing friendly

Mercy Hospital South

Acute Care Hospitals · Saint Louis, MO
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260077
Location10010 Kennerly RoadSaint Louis, MO 63128 · St. Louis County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63119 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 8

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

MISSOURI CVS PHARMACY LLC
Pharmacy
8021 WATSON RD
WEBSTER GROVES, MO 63119
St. Louis County (314) 963-0398
ELIZABETH SUZAN DYKEMAN FNP-C
Nurse Practitioner (Family)
8021 WATSON RD
WEBSTER GROVES, MO 63119
St. Louis County (866) 389-2727
BROOKE DUMMERTH
Pharmacist
8021 WATSON RD
WEBSTER GROVES, MO 63119
St. Louis County (314) 963-0398
YOSTENA KHALIL
Pharmacist
8021 WATSON RD
WEBSTER GROVES, MO 63119
St. Louis County (314) 963-0398
KATHARINE CLARE STOLL NP
Nurse Practitioner (Family)
8021 WATSON RD
WEBSTER GROVES, MO 63119
St. Louis County (866) 389-2727
DANIELLE MARIE SMITH FNP-C
Nurse Practitioner (Family)
8021 WATSON RD
SAINT LOUIS, MO 63119
St. Louis County (866) 389-2727
RACHEL WEBB PHARMD
Pharmacist
8021 WATSON RD
SAINT LOUIS, MO 63119
St. Louis County (314) 963-0398
LAURA SPROUS FNP
Nurse Practitioner (Family)
8021 WATSON RD
SAINT LOUIS, MO 63119
St. Louis County (866) 389-2727

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 Seib's NPI number?

The NPI number for Jennifer Seib is 1346796562. It was assigned to this individual provider in the NPPES registry on August 28, 2016.

Where is Jennifer Seib located?

Jennifer Seib practices at 8021 Watson Rd, Saint Louis, MO 63119. The listed phone number is (866) 389-2727.

What is Jennifer Seib's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Jennifer Seib enrolled in Medicare?

Yes. Jennifer Seib 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.

Which organizations bill Medicare for Jennifer Seib's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Jennifer Seib reassigns Medicare benefits to 4 organizations: Mercy Clinic East Communities (Saint Louis, MO), Ssm Medical Group, Inc. (Fenton, MO), Mercy East Ambulatory Services LLC (Chesterfield, MO) and Our Urgent Care, LLC (Wentzville, MO). Each 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 Jennifer Seib's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Jennifer Seib accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan and Ambetter of Oklahoma and 2 other insurers list Jennifer Seib 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.

Is Jennifer Seib affiliated with any hospitals?

According to CMS data, Jennifer Seib is affiliated with Mercy Hospital St Louis and Mercy Hospital South.

When was this NPI record last updated?

The NPPES record for Jennifer Seib was last updated on October 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.