MS. KATHERINE ELIZABETH MILHOUSE PNP
NPI 1407223647
Nurse Practitioner - Primary Care in Saint Louis, MO
About Ms. Katherine Elizabeth Milhouse Pnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. KATHERINE ELIZABETH MILHOUSE PNP (NPI 1407223647) is an individual primary care provider in Saint Louis, Missouri, licensed in Missouri (2015012510) and active in the NPI registry since August 2015. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Ms. Katherine Elizabeth Milhouse Pnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Katherine Milhouse reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Louis, MO 63110
- Reassigned Medicare billing, Missouri enrollment
- 628 clinicians in this Medicare group
Saint Louis, MO 63117
- Reassigned Medicare billing, Missouri enrollment
- 741 clinicians in this Medicare group
Saint Louis, MO 63139
- Reassigned Medicare billing, Missouri enrollment
- Medicare enrollment name: Ssm Cardinal Glennon Children's Hospital
- 414 clinicians in this Medicare group
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 63110 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
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 Katherine Milhouse's NPI number?
The NPI number for Katherine Milhouse is 1407223647. It was assigned to this individual provider in the NPPES registry on August 24, 2015.
Where is Katherine Milhouse located?
Katherine Milhouse practices at 1 Childrens Pl Div Ped Emergency Med, Saint Louis, MO 63110. The listed phone number is (314) 454-2341.
What is Katherine Milhouse's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Primary Care, with taxonomy code 363LP2300X.
Is Katherine Milhouse enrolled in Medicare?
Yes. Katherine Milhouse is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Katherine Milhouse's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Katherine Milhouse reassigns Medicare benefits to 3 organizations: Washington University (Saint Louis, MO), Ssm Health Care St. Louis (Saint Louis, MO) and Ssm Cardinal Glennon Childrens Hospital (Saint Louis, 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 Katherine Milhouse's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Katherine Milhouse accept?
Health plans from UnitedHealthcare list Katherine Milhouse 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 Katherine Milhouse was last updated on April 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months 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.
# Ms. Katherine Elizabeth Milhouse, PNP · NPI 1407223647
Primary Care physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since August 24, 2015.
## Identity
- **NPI:** 1407223647 (Entity type: Individual)
- **Enumerated:** August 24, 2015
- **Primary specialty:** Nurse Practitioner - Primary Care · taxonomy 363LP2300X
- **State license:** 2015012510 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 1 CHILDRENS PL, DIV PED EMERGENCY MED, Saint Louis, MO 63110-1002
- **Phone:** (314) 454-2341 · **Fax:** (314) 454-4345
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Washington University (NPI 1194765685, Saint Louis, MO); Ssm Health Care St. Louis (NPI 1366400855, Saint Louis, MO); Ssm Cardinal Glennon Childrens Hospital (NPI 1073568226, Saint Louis, MO) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 17, 2025
- **Other identifiers:** Medicaid 420027759 (MO)
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Source: [NPI Profile](https://npiprofile.com/npi/1407223647) · Data from the CMS NPPES public registry.