Individual provider Active NPI

Tanya L Duncan-Williams, AA-C

  • Anesthesiologist Assistant
  • Riverview, FL
National Provider Identifier
1336133271
Registry record updated Mar 30, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Anesthesiologist AssistantTaxonomy code 367H00000X
License
AA730 Issued in FL
Practice address
6901 Simmons Loop
Riverview, FL 33578-9498
Phone
(813) 870-4015
NPI assigned
Sep 7, 2005
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 30, 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 AA730 FL Primary

Addresses

Primary practice location

6901 Simmons Loop
Riverview, FL 33578-9498

Mailing address

2995 Drew St
Clearwater, FL 33759-3012
Phone (727) 315-7496

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address Tanya.Duncan-WilliamsCAA@direct.mybaycare.org Health Information Exchange (HIE)

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in GA, FL2 enrollments

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20040712001303 GA Practitioner - Anesthesiology Assistant 6709864028 Reassigns benefits to 2 organizations
I20221201002133 FL Practitioner - Anesthesiology Assistant 6709864028 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Anesthesiology Assistant
Education
Other, 2022
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
Baycare Medical Group, Inc. CurrentSince Nov 2, 2023 Accepting new patients
Baycare Medical Group, Inc. Physician Assistant Current Accepting new patients
Amsol Anesthetists of Georgia, LLC CurrentSince May 1, 2008 Accepting new patients
American Anesthesiology Services of Florida, Inc. CurrentSince Aug 25, 2022 Accepting new patients
Sentry Anesthesia Management, LLC CurrentSince Jul 31, 2021 Accepting new patients
Amsol Anesthetists of Georgia LLC-Hughston Surgical Center Physician Assistant CurrentSince May 1, 2008 Accepting new patients
Regional Anesthesia Associates LLC Past Accepting new patients

Locations

4401 Riverchase Dr
Phenix City, AL 36867
Phone (334) 732-3000

2995 Drew St
Clearwater, FL 33759
Phone (727) 315-7496

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

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

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

126 US Highway 280 W
Americus, GA 31719
Phone (229) 924-6011

6262 Veterans Pkwy
Unit B
Columbus, GA 31909
Phone (706) 494-3434

100 Frist Ct
Ste 2
Columbus, GA 31909

710 Center St
Columbus, GA 31901
Phone (706) 571-1000

6262 Veterans Pkwy
Columbus, GA 31909
Phone (706) 494-3071

100 Frist Ct
Columbus, GA 31909
Phone (706) 494-2100

616 19th St
Columbus, GA 31901
Phone (706) 494-4262

1305 Walt Whitman Rd
Ste 300
Melville, NY 11747
Phone (516) 370-3796

6225 State Highway 161
Ste 200
Irving, TX 75038
Phone (214) 687-0496

Interoperability endpoints

  • Direct secure messaging: tanya.duncan-williamscaa@direct.mybaycare.org

Organizations & group practices 7

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": "1126051200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1774828800000",
    "number": "1336133271",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2995 DREW ST",
            "city": "CLEARWATER",
            "state": "FL",
            "postal_code": "337593012",
            "telephone_number": "727-315-7496"
        },
        {
            "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": "813-870-4015"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DUNCAN-WILLIAMS",
        "first_name": "TANYA",
        "middle_name": "L",
        "credential": "AA-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2005-09-07",
        "last_updated": "2026-03-30",
        "certification_date": "2026-03-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367H00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiologist Assistant",
            "state": "FL",
            "license": "AA730",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "Tanya.Duncan-WilliamsCAA@direct.mybaycare.org",
            "affiliation": "N",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "contentType": "CSV",
            "contentTypeDescription": "CSV",
            "address_1": "6901 Simmons Loop",
            "city": "Riverview",
            "state": "FL",
            "country_code": "US",
            "postal_code": "335789498",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "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 30, 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.