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MRS. KRISTEN LYNN MUELLER CPNP-PC
NPI 1790549855
Nurse Practitioner - Pediatrics in O Fallon, MO

Active since February 09, 2024PECOS Enrolled
1275 SUMMER LYNNE DR, O FALLON, MO 63366(636) 288-4410 Get Directions Write a Review

NPPES record last updated: February 9, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Mrs. Kristen Lynn Mueller Cpnp-pc NPPES

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

MRS. KRISTEN LYNN MUELLER CPNP-PC (NPI 1790549855) is an individual pediatrics provider in O Fallon, Missouri, licensed in Missouri (2024000098) and active in the NPI registry since February 2024. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1790549855
Entity TypeIndividualFemale
Primary Taxonomy363LP0200X
Provider Legal NameMRS. KRISTEN LYNN MUELLERCredential: CPNP-PC
Location Address1275 SUMMER LYNNE DRO Fallon, MO 63366-6312
Mailing Address1275 Summer Lynne DrO Fallon, MO 63366-6312 · (636) 288-4410
Phone(636) 288-4410
Sole ProprietorNo
Enumeration DateFebruary 9, 2024
NPPES CertifiedFebruary 9, 2024
✔ NPI 1790549855 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · PediatricsPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0200X
License✔ Licensed in MO · 2024000098
1275 SUMMER LYNNE DR, O Fallon, MO 63366
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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 (PECOS)

Mrs. Kristen Lynn Mueller Cpnp-pc 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.

Medicare Billing Reassignment

Medicare enrollment records show Kristen Mueller reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Ssm Cardinal Glennon Childrens Hospital
18 mi
Pediatrics
2927 S . KINGS HIGHWAY BLVD
Saint Louis, MO 63139
  • Reassigned Medicare billing, Missouri enrollment
  • Medicare enrollment name: Ssm Cardinal Glennon Children's Hospital
  • 414 clinicians in this Medicare group
NPI 1073568226 (314) 268-4070

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63366 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 Kristen Mueller's NPI number?

The NPI number for Kristen Mueller is 1790549855. It was assigned to this individual provider in the NPPES registry on February 9, 2024.

Where is Kristen Mueller located?

Kristen Mueller practices at 1275 Summer Lynne Dr, O Fallon, MO 63366. The listed phone number is (636) 288-4410.

What is Kristen Mueller's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Pediatrics, with taxonomy code 363LP0200X.

Is Kristen Mueller enrolled in Medicare?

Yes. Kristen Mueller is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Kristen Mueller's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Kristen Mueller reassigns Medicare benefits to Ssm Cardinal Glennon Childrens Hospital (Saint Louis, 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 Kristen Mueller's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Kristen Mueller 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 4 other insurers list Kristen Mueller 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 Kristen Mueller was last updated on February 9, 2024. 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.