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KATY CASTILLO LCSW
NPI 1134879893
Social Worker in Tucson, AZ

Active since March 25, 2022PECOS Enrolled
6700 E SPEEDWAY BLVD, TUCSON, AZ 85710(520) 333-7279 Get Directions Write a Review

NPPES record last updated: January 5, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jan 5, 2026, May 4, 2022 (2 updates tracked since 2022).

About Katy Castillo Lcsw NPPES

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

KATY CASTILLO LCSW (NPI 1134879893) is an individual social worker in Tucson, Arizona and active in the NPI registry since March 2022. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1134879893
Entity TypeIndividualFemale
Primary Taxonomy104100000X
Provider Legal NameKATY CASTILLOCredential: LCSW
Location Address6700 E SPEEDWAY BLVDTucson, AZ 85710-1220
Mailing AddressPo Box 910221Dallas, TX 75391-0221 · (520) 519-7700
Phone(520) 333-7279
Sole ProprietorNo
Enumeration DateMarch 25, 2022
Last NPPES UpdateJanuary 5, 20262 updates tracked since enumeration
NPPES CertifiedJanuary 5, 2026
✔ NPI 1134879893 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers
Taxonomy Code104100000X
Definition
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.
6700 E SPEEDWAY BLVD, Tucson, AZ 85710
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Cigna HealthCare of Arizona, Inc, Oscar Health Plan, Inc., UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Katy Castillo Lcsw 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

2

Medicare enrollment records show Katy Castillo reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Escalera Health LLC
1.7 mi
Family Medicine
2224 NORTH CRAYCROFT ROAD, STE 100
Tucson, AZ 85712
  • Reassigned Medicare billing, Arizona enrollment
  • 118 clinicians in this Medicare group
NPI 1487146171 (520) 209-1919
Grow Healthcare Group PA
1,901 mi
Mental Health
66 W FLAGLER ST STE 900
Miami, FL 33130
  • Reassigned Medicare billing, Arizona enrollment
  • 532 clinicians in this Medicare group
NPI 1245845932 (786) 244-7711

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ECHEZONA KINDRED HOMECARE LLC
In Home Supportive Care
6700 E SPEEDWAY BLVD
TUCSON, AZ 85710
Pima County (602) 600-7084
ABLEKIDS LLC
Clinic/Center (Health Service)
6700 E SPEEDWAY BLVD
TUCSON, AZ 85710
Pima County (520) 844-2200
PATRICIA GUIDO LMFT
Marriage & Family Therapist
6700 E SPEEDWAY BLVD
TUCSON, AZ 85710
Pima County (520) 400-0114

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 Katy Castillo's NPI number?

The NPI number for Katy Castillo is 1134879893. It was assigned to this individual provider in the NPPES registry on March 25, 2022.

Where is Katy Castillo located?

Katy Castillo practices at 6700 E Speedway Blvd, Tucson, AZ 85710. The listed phone number is (520) 333-7279.

What is Katy Castillo's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

Is Katy Castillo enrolled in Medicare?

Yes. Katy Castillo is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Katy Castillo's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Katy Castillo reassigns Medicare benefits to 2 organizations: Escalera Health LLC (Tucson, AZ) and Grow Healthcare Group PA (Miami, FL). 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 Katy Castillo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Katy Castillo accept?

Health plans from Cigna HealthCare of Arizona, Inc, Oscar Health Plan, Inc. and UnitedHealthcare list Katy Castillo 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 Katy Castillo was last updated on January 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months 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.