Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Breathing and Insomnia Services Pllc

Pediatric Pulmonology Physician in Scottsdale, AZ · enumerated 2021 · authorized official Walter Castro, Owner.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1902561962

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name Breathing and Insomnia Services Pllc

Practice address 9375 E Shea Blvd Ste 100, Scottsdale, AZ, 85260

Phone (832) 248-5753

Fax (480) 214-9500

Enumeration date Nov 4, 2021

Last updated in NPPES Nov 4, 2021

Taxonomy & classification

2080P0214X Pediatric Pulmonology Physician Allopathic & Osteopathic Physicians Primary

2080S0012X Pediatric Sleep Medicine Physician Allopathic & Osteopathic Physicians Secondary

Authorized official

Name Walter Castro

Title Owner

Phone (832) 248-5753

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where is Breathing and Insomnia Services Pllc located?

The practice location on file with NPPES is in Scottsdale, AZ.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2021-11-04. Verify at npiregistry.cms.hhs.gov.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-11-04.