ELIZABETH LILLMARS-STEPHENS FNP-C
NPI 1033696026
Nurse Practitioner - Family in Valley Park, MO

Q: What is Elizabeth Lillmars-stephens's NPI number?

The NPI number for Elizabeth Lillmars-stephens is 1033696026. It was assigned to this individual provider in the NPPES registry on July 23, 2018.

Q: What is Elizabeth Lillmars-stephens's specialty?

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

Active since July 23, 2018PECOS EnrolledAccepts Medicare Assignment

783 CRESCENT WOODS DR, VALLEY PARK, MO 63088(314) 412-4253 Get Directions Write a Review

NPPES record last updated: July 23, 2018. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Elizabeth Lillmars-stephens Fnp-c NPPES

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

ELIZABETH LILLMARS-STEPHENS FNP-C (NPI 1033696026) is an individual family provider in Valley Park, Missouri, licensed in Missouri (F07181374) and active in the NPI registry since July 2018. She is enrolled in Medicare PECOS, is affiliated with Ssm St Joseph Health Center, and is a graduate of Other (2018).

NPPES Registry Identity

NPI1033696026

Entity TypeIndividualFemale

Primary Taxonomy363LF0000X

Provider Legal NameELIZABETH LILLMARS-STEPHENSCredential: FNP-C

Location Address783 CRESCENT WOODS DRValley Park, MO 63088-1328

Mailing Address783 Crescent Woods DrValley Park, MO 63088-1328 · (314) 412-4253

Phone(314) 412-4253

Sole ProprietorNo

Medical School CMSOtherGraduated 2018

Enumeration DateJuly 23, 2018

✔ NPI 1033696026 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LF0000X

License✔ Licensed in MO · F07181374

Also ListedRegistered NurseTaxonomy 163W00000X · License 2013025091 (MO)

783 CRESCENT WOODS DR, Valley Park, MO 63088

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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

Elizabeth Lillmars-stephens Fnp-c 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 ID345675443

PECOS Enrollment IDI20230413002647

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 Elizabeth Lillmars-stephens reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Ssm Health Care St Louis

2.5 mi

Emergency Medicine

1015 BOWLES AVENUE
Fenton, MO 63026

Reassigned Medicare billing, Missouri enrollment
741 clinicians in this Medicare group

NPI 1275586174 (636) 496-2502

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 2

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 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.

57 services56 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

11 services11 patients

Hospital Affiliations CMS Care Compare 4

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

Ssm St Joseph Health Center

Acute Care Hospitals · Saint Charles, MO

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number260005

Location300 1st Capitol DrSaint Charles, MO 63301 · St. Charles County

Emergency services

Ssm St Clare Health Center

Acute Care Hospitals · Fenton, MO

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number260081

Location1015 BowlesFenton, MO 63026 · Jefferson County

Emergency services Birthing friendly

Ssm Health St Mary's Hospital - St Louis

Acute Care Hospitals · Richmond Heights, MO

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number260091

Location6420 Clayton RdRichmond Heights, MO 63117 · St. Louis County

Emergency services Birthing friendly

Ssm Health Depaul Hospital St Louis

Acute Care Hospitals · Bridgeton, MO

2/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number260104

Location12303 Depaul DriveBridgeton, MO 63044 · St. Louis County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63088 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 Elizabeth Lillmars-stephens's NPI number?

The NPI number for Elizabeth Lillmars-stephens is 1033696026. It was assigned to this individual provider in the NPPES registry on July 23, 2018.

Where is Elizabeth Lillmars-stephens located?

Elizabeth Lillmars-stephens practices at 783 Crescent Woods Dr, Valley Park, MO 63088. The listed phone number is (314) 412-4253.

What is Elizabeth Lillmars-stephens's specialty?

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

Is Elizabeth Lillmars-stephens enrolled in Medicare?

Yes. Elizabeth Lillmars-stephens 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 organization bills Medicare for Elizabeth Lillmars-stephens's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Elizabeth Lillmars-stephens reassigns Medicare benefits to Ssm Health Care St Louis (Fenton, 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 Elizabeth Lillmars-stephens's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Elizabeth Lillmars-stephens 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 3 other insurers list Elizabeth Lillmars-stephens 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 Elizabeth Lillmars-stephens affiliated with any hospitals?

According to CMS data, Elizabeth Lillmars-stephens is affiliated with Ssm St Joseph Health Center, Ssm St Clare Health Center, Ssm Health St Mary's Hospital - St Louis and Ssm Health Depaul Hospital St Louis.

When was this NPI record last updated?

The NPPES record for Elizabeth Lillmars-stephens was last updated on July 23, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.