MRS. KATHRYN MARI CASTORENA NP
NPI 1659793420
Nurse Practitioner in Ann Arbor, MI
About Mrs. Kathryn Mari Castorena Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. KATHRYN MARI CASTORENA NP (NPI 1659793420) is an individual nurse practitioner in Ann Arbor, Michigan, licensed in Michigan (4704282048) and active in the NPI registry since January 2014. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
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)
Mrs. Kathryn Mari Castorena Np is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Kathryn Castorena reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Tecumseh, MI 49286
- Reassigned Medicare billing, Michigan enrollment
- 5 clinicians in this Medicare group
Dallas, TX 75244
- Reassigned Medicare billing, Michigan enrollment
- 666 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 48109 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.
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
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 Kathryn Castorena's NPI number?
The NPI number for Kathryn Castorena is 1659793420. It was assigned to this individual provider in the NPPES registry on January 14, 2014.
Where is Kathryn Castorena located?
Kathryn Castorena practices at 1500 E Medical Center Dr 2nd Floor Taubman Center Recp B, Ann Arbor, MI 48109. The listed phone number is (734) 936-8857.
What is Kathryn Castorena's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Kathryn Castorena enrolled in Medicare?
Yes. Kathryn Castorena is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Kathryn Castorena's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kathryn Castorena reassigns Medicare benefits to 2 organizations: Life IV Therapy PLLC (Tecumseh, MI) and Signify Health Medical Associates, PLLC (Dallas, TX). 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 Kathryn Castorena's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Kathryn Castorena accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, CareSource (Common Ground Healthcare) and Paramount and 1 other insurer list Kathryn Castorena 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 Kathryn Castorena was last updated on January 17, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Mrs. Kathryn Mari Castorena, NP · NPI 1659793420
Nurse Practitioner physician in Ann Arbor, Michigan. Individual provider, active in the CMS NPPES registry since January 14, 2014.
## Identity
- **NPI:** 1659793420 (Entity type: Individual)
- **Enumerated:** January 14, 2014
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** 4704282048 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 1500 E MEDICAL CENTER DR, 2ND FLOOR TAUBMAN CENTER RECP B, Ann Arbor, MI 48109-5344
- **Phone:** (734) 936-8857
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Life IV Therapy PLLC (NPI 1396563821, Tecumseh, MI); Signify Health Medical Associates, PLLC (NPI 1750845863, Dallas, TX) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** January 17, 2014
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Source: [NPI Profile](https://npiprofile.com/npi/1659793420) · Data from the CMS NPPES public registry.