CARYN T ADDONIZIO NP
NPI 1396988358
Nurse Practitioner - Psychiatric/Mental Health in Knoxville, TN

Active since April 07, 2009PECOS Enrolled
205 W SPRINGDALE AVE, KNOXVILLE, TN 37917(865) 637-9711 Get Directions Write a Review

NPPES record last updated: March 8, 2017. Verified against the NPPES registry weekly; last sync: November 01, 2026.

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

NPI1396988358
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameCARYN T ADDONIZIOCredential: NP
Location Address205 W SPRINGDALE AVEKnoxville, TN 37917-5158
Mailing Address201 W Springdale AveKnoxville, TN 37917-5158 · (865) 637-9711
Sole ProprietorNo
Enumeration DateApril 7, 2009
Last NPPES UpdateMarch 8, 2017
✔ NPI 1396988358 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
License✔ Licensed in TN · RN0000095103
205 W SPRINGDALE AVE, Knoxville, TN 37917

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).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

4

Medicare 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.

Psychiatric Hospital
1240 TENNOVA MEDICAL WAY
Knoxville, TN 37909
  • Reassigned Medicare billing, Tennessee enrollment
  • 39 clinicians in this Medicare group
Rehabilitation, Substance Use Disorder
116 N 3RD ST STE 3
Danville, KY 40422
  • Reassigned Medicare billing, Iowa enrollment
  • Medicare enrollment name: Affect Provider Group Psc
  • 2 clinicians in this Medicare group
Rehabilitation, Substance Use Disorder
1001 RESEARCH PARK BLVD STE 100
Charlottesville, VA 22911
  • Reassigned Medicare billing, Tennessee enrollment
  • 2 clinicians in this Medicare group
Psychiatry
1501 42ND ST STE 575
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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
141 services55 patients
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
73 services35 patients
Psychiatric diagnostic evaluation with medical services 90792
A psychiatric diagnostic evaluation with medical services is a comprehensive assessment. It includes a detailed examination of your mental health and physical wellbeing, as well as your personal and family history. This evaluation aids in creating an effective treatment plan.
35 services34 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
19 services19 patients

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.

New Patient
$81.53 typical visit price
range $52.64 – $160.89
Typical copayment $20.38 (range $13.16 – $40.22)
Most-billed visit code 99203
Established Patient
$93.60 typical visit price
range $16.72 – $131.41
Typical copayment $23.40 (range $4.18 – $32.85)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Case Manager/Care Coordinator
205 W SPRINGDALE AVE
KNOXVILLE, TN 37917
Case Manager/Care Coordinator
205 W SPRINGDALE AVE
KNOXVILLE, TN 37917
Social Worker
205 W SPRINGDALE AVE
KNOXVILLE, TN 37917
Case Manager/Care Coordinator
205 W SPRINGDALE AVE
KNOXVILLE, TN 37917
Case Manager/Care Coordinator
205 W SPRINGDALE AVE
KNOXVILLE, TN 37917
Nurse Practitioner (Family)
205 W SPRINGDALE AVE
KNOXVILLE, TN 37917
Behavior Technician
205 W SPRINGDALE AVE
KNOXVILLE, TN 37917
Case Manager/Care Coordinator
205 W SPRINGDALE AVE
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.