MS. JANZA LEE PRESTON
NPI 1891158812
Counselor - Professional in Clayton, MO
About Ms. Janza Lee Preston NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. JANZA LEE PRESTON (NPI 1891158812) is an individual professional provider in Clayton, Missouri, licensed in Missouri (2013044758) and active in the NPI registry since March 2016. She is enrolled in Medicare PECOS and is a graduate of Other (2008).
NPPES Registry Identity
Specialties & Licenses
Accepted 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
Ms. Janza Lee Preston 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.
Medicare Billing Reassignment
Medicare enrollment records show Janza Preston reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Saint Charles, MO 63301
- Reassigned Medicare billing, Missouri enrollment
- 36 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.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CLAYTON, MI 63105
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 Janza Preston's NPI number?
The NPI number for Janza Preston is 1891158812. It was assigned to this individual provider in the NPPES registry on March 29, 2016.
Where is Janza Preston located?
Janza Preston practices at 225 South Meramec 432T, Clayton, MO 63105. The listed phone number is (636) 542-1024.
What is Janza Preston's specialty?
The primary specialty registered for this NPI is Counselor, specializing in Professional, with taxonomy code 101YP2500X.
Is Janza Preston enrolled in Medicare?
Yes. Janza Preston 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 Janza Preston's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Janza Preston reassigns Medicare benefits to A W Stevenson LLC (Saint Charles, 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 Janza Preston's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Janza Preston 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 5 other insurers list Janza Preston 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 Janza Preston was last updated on March 29, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Ms. Janza Lee Preston · NPI 1891158812
Professional provider in Clayton, Missouri. Individual provider, active in the CMS NPPES registry since March 29, 2016.
## Identity
- **NPI:** 1891158812 (Entity type: Individual)
- **Enumerated:** March 29, 2016
- **Primary specialty:** Counselor - Professional · taxonomy 101YP2500X
- **State license:** 2013044758 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 225 SOUTH MERAMEC, 432T, Clayton, MO 63105-3597
- **Phone:** (636) 542-1024
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** A W Stevenson LLC (NPI 1396469060, Saint Charles, MO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2008
## Record status
- **NPPES last updated:** March 29, 2016
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Source: [NPI Profile](https://npiprofile.com/npi/1891158812) · Data from the CMS NPPES public registry.