CARYN T ADDONIZIO NP
NPI 1396988358
Nurse Practitioner - Psychiatric/Mental Health in Knoxville, TN
About Caryn T Addonizio Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CARYN T ADDONIZIO NP (NPI 1396988358) is an individual psychiatric/mental health provider in Knoxville, Tennessee, licensed in Tennessee (RN0000095103) and active in the NPI registry since April 2009. She is enrolled in Medicare PECOS.
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 (PECOS)
Caryn T Addonizio Np is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show Caryn Addonizio reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Knoxville, TN 37909
- Reassigned Medicare billing, Tennessee enrollment
- 39 clinicians in this Medicare group
Danville, KY 40422
- Reassigned Medicare billing, Iowa enrollment
- Medicare enrollment name: Affect Provider Group Psc
- 2 clinicians in this Medicare group
Charlottesville, VA 22911
- Reassigned Medicare billing, Tennessee enrollment
- 2 clinicians in this Medicare group
West Des Moines, IA 50266
- Reassigned Medicare billing, Tennessee enrollment
- 7 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.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 37917 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.
KNOXVILLE, TN 37917
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 Caryn Addonizio's NPI number?
The NPI number for Caryn Addonizio is 1396988358. It was assigned to this individual provider in the NPPES registry on April 7, 2009.
Where is Caryn Addonizio located?
Caryn Addonizio practices at 205 W Springdale Ave, Knoxville, TN 37917. The listed phone number is (865) 637-9711.
What is Caryn Addonizio's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.
Is Caryn Addonizio enrolled in Medicare?
Yes. Caryn Addonizio is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Caryn Addonizio's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Caryn Addonizio reassigns Medicare benefits to 4 organizations: Knoxville Center For Behavioral Medicine LLC (Knoxville, TN), Affect Provider Group, P.S.C. (Danville, KY), Affect Therapeutics Inc (Charlottesville, VA) and Evizzit Of Iowa Psychiatry PC (West Des Moines, IA). 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 Caryn Addonizio's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Caryn Addonizio accept?
Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter of Alabama, Ambetter of North Carolina and Ambetter of Tennessee and 3 other insurers list Caryn Addonizio 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 Caryn Addonizio was last updated on March 8, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.