Individual provider Active NPI

Caroline Horenstein, SLP-CCC

  • Speech-Language Pathologist
  • Scottsdale, AZ
National Provider Identifier
1700455029
Registry record updated Sep 26, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Speech-Language PathologistTaxonomy code 235Z00000X
License
SLP13029 Issued in AZ
Practice address
11000 N Scottsdale Rd Ste 220
Scottsdale, AZ 85254-5269
Phone
(480) 256-9666
NPI assigned
Jun 21, 2021
Last updated
Sep 26, 2026By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 26, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Speech-Language Pathologist 235Z00000X SLP13029 AZ Primary

Addresses

Primary practice location

11000 N Scottsdale Rd Ste 220
Scottsdale, AZ 85254-5269

Mailing address

3918 E Oak St
Phoenix, AZ 85008-2251
Phone (412) 302-8441

Other names 1

  • Caroline Waldschmidt Professional name

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in AZ

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20240819000091 AZ Practitioner - Qualified Speech Language Pathologist 4284172800 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Qualified Speech Language Pathologist
Education
Other, 2020
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Arizona Speech and Swallow Therapy PLLCGroup PAC ID 3375081995, 6 clinicians

Practice addresses (Care Compare)

11000 N Scottsdale Rd
Suite 220
Scottsdale, AZ 85254-5269
Phone (480) 256-9666

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

Practice roles

OrganizationSpecialtyStatusNew patients
Arizona Speech and Swallow Therapy PLLC Speech-Language Pathologist CurrentSince May 17, 2024 Accepting new patients

Locations

10601 N Hayden Rd
Ste 108
Scottsdale, AZ 85260
Phone (480) 256-9666

11000 N Scottsdale Rd
Ste 220
Scottsdale, AZ 85254
Phone (480) 256-9666

Organizations & group practices 1

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1624233600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1790380800000",
    "number": "1700455029",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3918 E OAK ST",
            "city": "PHOENIX",
            "state": "AZ",
            "postal_code": "850082251",
            "telephone_number": "412-302-8441"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "11000 N SCOTTSDALE RD STE 220",
            "city": "SCOTTSDALE",
            "state": "AZ",
            "postal_code": "852545269",
            "telephone_number": "480-256-9666"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HORENSTEIN",
        "first_name": "CAROLINE",
        "credential": "SLP-CCC",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-06-21",
        "last_updated": "2026-09-26",
        "certification_date": "2026-09-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "235Z00000X",
            "taxonomy_group": "",
            "desc": "Speech-Language Pathologist",
            "state": "AZ",
            "license": "SLP13029",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "CAROLINE",
            "last_name": "WALDSCHMIDT",
            "code": "2",
            "type": "Professional Name"
        }
    ]
}

Other providers in Scottsdale, AZ

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 26, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.