KRISTEN T SULLIVAN PNP
NPI 1366675563
Nurse Practitioner - Pediatrics, Critical Care in Phoenix, AZ

Q: What is Kristen Sullivan's NPI number?

The NPI number for Kristen Sullivan is 1366675563. It was assigned to this individual provider in the NPPES registry on September 3, 2009. The provider is also known as Kristen M Toczydlowski Pnp.

Q: What is Kristen Sullivan's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Pediatrics, Critical Care, with taxonomy code 363LP0222X.

Q: When was this NPI record last updated?

The NPPES record for Kristen Sullivan was last updated on March 29, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.

Active since September 03, 2009PECOS Enrolled

1919 E THOMAS RD, PHOENIX, AZ 85016(602) 933-2693(602) 933-2697 Get Directions Write a Review

NPPES record last updated: March 29, 2018. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Kristen T Sullivan Pnp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

KRISTEN T SULLIVAN PNP (NPI 1366675563) is an individual pediatrics, critical care provider in Phoenix, Arizona, licensed in Arizona (AP3435) and active in the NPI registry since September 2009. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1366675563

Entity TypeIndividualFemale

Primary Taxonomy363LP0222X

Provider Legal NameKRISTEN T SULLIVANCredential: PNP

Location Address1919 E THOMAS RDPhoenix, AZ 85016-7710

Mailing Address3200 E Camelback Rd Ste 250Phoenix, AZ 85018-2327 · (602) 933-1814

Phone(602) 933-2693

Fax(602) 933-2697

Sole ProprietorNo

Enumeration DateSeptember 3, 2009

Last NPPES UpdateMarch 29, 2018

✔ NPI 1366675563 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyNurse Practitioner · Pediatrics, Critical CarePhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LP0222X

License✔ Licensed in AZ · AP3435

Also ListedRegistered Nurse · Medical-SurgicalTaxonomy 163WM0705X · License RN159067 (AZ)

Also ListedNurse Practitioner · PediatricsTaxonomy 363LP0200X · License AP3435 (AZ)

1919 E THOMAS RD, Phoenix, AZ 85016

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Other Names 1

Former Name (1)Kristen M Toczydlowski Pnp

Other Identifiers 1

Medicaid471784AZ

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Kristen T Sullivan Pnp 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 Reassignment

Medicare enrollment records show Kristen Sullivan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Phoenix Children's Hospital

Same address

Pediatrics

1919 E THOMAS RD
Phoenix, AZ 85016

Reassigned Medicare billing, Arizona enrollment
1,416 clinicians in this Medicare group

NPI 1922112044 (602) 933-1000

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 85016 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

$85.89 typical visit price

range $55.44 – $168.60

Typical copayment $21.47 (range $13.86 – $42.15)

Most-billed visit code 99203

Established Patient

$98.00 typical visit price

range $17.72 – $137.41

Typical copayment $24.50 (range $4.43 – $34.35)

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.

DR. TIMUR RAGHIB M.D.

Hospitalist