Individual provider Active NPI

Petra Massis, CCC-SLP

  • Speech-Language Pathologist
  • Herndon, VA
National Provider Identifier
1073255618
Registry record updated Aug 3, 2023
On this page

Key facts

NPPES NPI Registry
Primary specialty
Speech-Language PathologistTaxonomy code 235Z00000X
License
A60879991 Issued in VA
Practice address
13582 Big Boulder Rd
Herndon, VA 20171-5000
Phone
(571) 329-2658
NPI assigned
Apr 13, 2022
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Aug 3, 2023

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 A60879991 VA Primary

Addresses

Primary practice location

13582 Big Boulder Rd
Herndon, VA 20171-5000

Mailing address

13582 Big Boulder Rd
Herndon, VA 20171-5000
Phone (571) 329-2658

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled

State licenses

LicenseStateTypeSpecialty
A60879991VAMDSpeech-Language Pathologist

Practice roles

OrganizationSpecialtyStatusNew patients
Massis Speech & Language PLLC Speech-Language Pathologist CurrentSince Oct 21, 2025 Accepting new patients
Sunrise Therapy Speech-Language Pathologist Past Accepting new patients

Locations

209 Elden St
Ste 204
Herndon, VA 20170
Phone (571) 329-2658

Organizations & group practices 2

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

NPI Registry JSON

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

{
    "created_epoch": "1649808000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1691020800000",
    "number": "1073255618",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "13582 BIG BOULDER RD",
            "city": "HERNDON",
            "state": "VA",
            "postal_code": "201715000",
            "telephone_number": "571-329-2658"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "13582 BIG BOULDER RD",
            "city": "HERNDON",
            "state": "VA",
            "postal_code": "201715000",
            "telephone_number": "571-329-2658"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MASSIS",
        "first_name": "PETRA",
        "credential": "CCC-SLP",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2022-04-13",
        "last_updated": "2023-08-03",
        "certification_date": "2023-08-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "235Z00000X",
            "taxonomy_group": "",
            "desc": "Speech-Language Pathologist",
            "state": "VA",
            "license": "A60879991",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Herndon, VA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 3, 2023; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.