1. Home
  2. Directory
  3. Arizona
  4. Mesa
  5. Speech Language Pathologist
  6. NPI Profile

CHELSEA ORSO
NPI 1104219302
Speech-Language Pathologist in Mesa, AZ

Active since March 11, 2015
551 S HIGLEY RD BLDG SUITE, MESA, AZ 85206(480) 892-9777 Get Directions Write a Review

NPPES record last updated: July 9, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 9, 2026, Aug 27, 2020 (2 updates tracked since 2020).

About Chelsea Orso NPPES

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

CHELSEA ORSO (NPI 1104219302) is an individual speech-language pathologist provider in Mesa, Arizona, licensed in Arizona (SLP8774) and active in the NPI registry since March 2015. She maintains 2 additional practice locations and is a graduate of Other (2018).

NPPES Registry Identity

NPI1104219302
Entity TypeIndividualFemale
Primary Taxonomy235Z00000X
Provider Legal NameCHELSEA ORSO
Location Address551 S HIGLEY RD BLDG SUITEMesa, AZ 85206-2148
Mailing Address20033 N 19th Ave Ste 121Phoenix, AZ 85027-4251 · (602) 875-5616
Phone(480) 892-9777
Sole ProprietorYes
Medical School CMSOtherGraduated 2018
Enumeration DateMarch 11, 2015
Last NPPES UpdateJuly 9, 20262 updates tracked since enumeration
NPPES CertifiedJuly 9, 2026
✔ NPI 1104219302 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpeech-Language PathologistSpeech, Language and Hearing Service Providers
Taxonomy Code235Z00000X
License✔ Licensed in AZ · SLP8774
Definition
The speech-language pathologist is the professional who engages in clinical services, prevention, advocacy, education, administration, and research in the areas of communication and swallowing across the life span from infancy through geriatrics. Speech-language pathologists address typical and atypical impairments and disorders related to communication and swallowing in the areas of speech sound production, resonance, voice, fluency, language (comprehension and expression), cognition, and feeding and swallowing.
551 S HIGLEY RD BLDG SUITE, Mesa, AZ 85206
Open in Google Maps ↗

Other Names 1

Former Name (1)Chelsea Brown

Secondary Practice Locations 2

Location 14542 E Inverness AveMesa, AZ 85206-4619 · Phone (480) 926-6309
Location 220033 N 19th Ave Ste 121Phoenix, AZ 85027-4251 · Phone (602) 875-5616

Other Identifiers 1

Medicaid437919AZ

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Chelsea Orso is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID8729547526
PECOS Enrollment IDI20260821003937

Medicare Billing Reassignment

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

Theracare PLLC
37 mi
Occupational Therapist
9385 W DONALD DR
Peoria, AZ 85383
  • Reassigned Medicare billing, Arizona enrollment
  • 95 clinicians in this Medicare group
NPI 1962784249 (602) 875-5616

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

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 Chelsea Orso's NPI number?

The NPI number for Chelsea Orso is 1104219302. It was assigned to this individual provider in the NPPES registry on March 11, 2015. The provider is also known as Chelsea Brown.

Where is Chelsea Orso located?

Chelsea Orso practices at 551 S Higley Rd Bldg Suite, Mesa, AZ 85206. The listed phone number is (480) 892-9777.

What is Chelsea Orso's specialty?

The primary specialty registered for this NPI is Speech-Language Pathologist with taxonomy code 235Z00000X.

Is Chelsea Orso enrolled in Medicare?

Yes. Chelsea Orso is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Chelsea Orso's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Chelsea Orso reassigns Medicare benefits to Theracare PLLC (Peoria, AZ). The 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 Chelsea Orso's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Chelsea Orso was last updated on July 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.