Individual provider Active NPI

Allison Leigh Matis, AA

  • Anesthesiologist Assistant
  • Riverview, FL
National Provider Identifier
1427208487
Registry record updated Mar 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Anesthesiologist AssistantTaxonomy code 367H00000X
License
AA18 Issued in FL
Practice address
6901 Simmons Loop
Riverview, FL 33578-9498
Phone
(813) 350-7244
Fax
(813) 350-7246
NPI assigned
Sep 26, 2008
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 13, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Anesthesiologist Assistant 367H00000X AA18 FL Primary

Addresses

Primary practice location

6901 Simmons Loop
Riverview, FL 33578-9498

Mailing address

2995 Drew St FL 2
Clearwater, FL 33759-3012
Phone (727) 532-0002

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20081105000390 FL Practitioner - Anesthesiology Assistant 2466511423 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Anesthesiology Assistant
Education
Other, 2008
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Baycare Medical Group, Inc.Group PAC ID 6406753623, 1,539 clinicians

Practice addresses (Care Compare)

2461 Enterprise Rd
Suite C
Clearwater, FL 33763-1726
Phone (727) 725-5060

6901 Simmons Loop
Riverview, FL 33578-9498

Hospital & facility affiliations

  • St Josephs Hospital Hospital, Tampa, FL, CCN 100075

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Associate of Arts

Practice roles

OrganizationSpecialtyStatusNew patients
American Anesthesiology Services of Florida, Inc. CurrentSince Jun 1, 2018 Accepting new patients
Baycare Medical Group, Inc. CurrentSince Nov 2, 2023 Accepting new patients
Baycare Medical Group, Inc. CurrentSince Nov 2, 2023 Accepting new patients

Locations

300 Pinellas St
Clearwater, FL 33756
Phone (727) 461-8552

2461 Enterprise Rd
Ste C
Clearwater, FL 33763
Phone (727) 725-5060

2995 Drew St
Fl 2
Clearwater, FL 33759
Phone (727) 315-7234

6633 Forest Ave
Ste 105
New Prt Rchy, FL 34653
Phone (727) 845-4300

4725 N Federal Hwy
Oakland Park, FL 33308
Phone (954) 493-5005

6901 Simmons Loop
Riverview, FL 33578
Phone (813) 302-8000

900 Carillon Pkwy
Ste 205
St Petersburg, FL 33716
Phone (727) 561-2710

3001 W Mlk Blvd
Tampa, FL 33607
Phone (813) 361-6778

Interoperability endpoints

  • Direct secure messaging: allison.matisaa@direct.mybaycare.org

Organizations & group practices 3

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.

Hospital & facility affiliations 2

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1222387200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1773360000000",
    "number": "1427208487",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2995 DREW ST FL 2",
            "city": "CLEARWATER",
            "state": "FL",
            "postal_code": "337593012",
            "telephone_number": "727-532-0002"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6901 SIMMONS LOOP",
            "city": "RIVERVIEW",
            "state": "FL",
            "postal_code": "335789498",
            "telephone_number": "813-350-7244",
            "fax_number": "813-350-7246"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MATIS",
        "first_name": "ALLISON",
        "middle_name": "LEIGH",
        "credential": "AA",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2008-09-26",
        "last_updated": "2026-03-13",
        "certification_date": "2026-03-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367H00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiologist Assistant",
            "state": "FL",
            "license": "AA18",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Riverview, FL

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 13, 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.