MARIAH STILES CASTLEN CSW
NPI 1326590035
Social Worker - Clinical in Lexington, KY
About Mariah Stiles Castlen Csw NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARIAH STILES CASTLEN CSW (NPI 1326590035) is an individual clinical provider in Lexington, Kentucky, licensed in Kentucky (2558) and active in the NPI registry since October 2016. She is enrolled in Medicare PECOS, maintains a secondary practice location in Owensboro, and is a graduate of Other (2017).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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 and accepts Medicare assignment
Mariah Stiles Castlen Csw 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 Mariah Castlen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Lexington, KY 40511
- Reassigned Medicare billing, Kentucky enrollment
- 141 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 40511 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
LEXINGTON, KY 40511
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 Mariah Castlen's NPI number?
The NPI number for Mariah Castlen is 1326590035. It was assigned to this individual provider in the NPPES registry on October 28, 2016.
Where is Mariah Castlen located?
Mariah Castlen practices at 1351 Newtown Pike Bldg 1, Lexington, KY 40511. The listed phone number is (859) 253-1686.
What is Mariah Castlen's specialty?
The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.
Is Mariah Castlen enrolled in Medicare?
Yes. Mariah Castlen 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 Mariah Castlen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mariah Castlen reassigns Medicare benefits to New Vista Of The Bluegrass (Lexington, KY). 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 Mariah Castlen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mariah Castlen accept?
Health plans from Anthem Blue Cross and Blue Shield list Mariah Castlen 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 Mariah Castlen was last updated on August 25, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Mariah Stiles Castlen, CSW · NPI 1326590035
Clinical provider in Lexington, Kentucky. Individual provider, active in the CMS NPPES registry since October 28, 2016.
## Identity
- **NPI:** 1326590035 (Entity type: Individual)
- **Enumerated:** October 28, 2016
- **Primary specialty:** Social Worker - Clinical · taxonomy 1041C0700X
- **State license:** 2558 (Kentucky)
- **Sole proprietor:** No
## Practice location
- **Address:** 1351 NEWTOWN PIKE BLDG 1, Lexington, KY 40511-1277
- **Phone:** (859) 253-1686
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** New Vista Of The Bluegrass (NPI 1366482317, Lexington, KY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2017
## Record status
- **NPPES last updated:** August 25, 2020
- **Other identifiers:** Medicaid 1790731081 (KY)
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Source: [NPI Profile](https://npiprofile.com/npi/1326590035) · Data from the CMS NPPES public registry.