Individual provider Active NPI

Alonzo Rivas, PA

  • Physician Assistant
  • Austin, TX
National Provider Identifier
1689964819
Registry record updated Mar 19, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
License
PA07012 Issued in TX
Practice address
2410 E Riverside Dr
Ste G-3
Austin, TX 78741-3083
Phone
(512) 744-6000
Fax
(512) 448-3776
NPI assigned
Apr 8, 2011
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 19, 2026

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

Specialties & licenses 6

Specialty (taxonomy)CodeLicenseStatePrimary
Physician Assistant 363A00000X 085008756 IL
Physician Assistant 363A00000X PA07012 TX Primary
Physician Assistant 363A00000X 027617 NY
Physician Assistant 363A00000X PA61234695 WA
Physician Assistant 363A00000X PA66983 CA
Physician Assistant 363A00000X 875323 WI

Addresses

Primary practice location

2410 E Riverside Dr
Ste G-3
Austin, TX 78741-3083

Mailing address

2621 Ridgepoint Dr
Ste 130
Austin, TX 78754-5232
Phone (512) 583-9679

Other practice location 1

333 1st St Ste A
San Francisco, CA 94105-2661
Phone (888) 803-3370

Other practice location 2

156 William St Rm 303
New York, NY 10038-5307
Phone (888) 803-3370

Other practice location 3

1400 N Coit Rd Ste 302
McKinney, TX 75071-6656
Phone (888) 803-3370

Other practice location 4

415 N Crescent Dr Ste 320
Beverly Hills, CA 90210-6813
Phone (888) 803-3370

Other practice location 5

790 N Milwaukee St Ste 313
Milwaukee, WI 53202-4148
Phone (888) 803-3370

Other practice location 6

21660 W Field Pkwy
Deer Park, IL 60010-7265
Phone (888) 803-3370

Other practice location 7

555 Andover Park W Ste 200
Tukwila, WA 98188-3379
Phone (888) 803-3370

Other practice location 8

5373 W Alabama St Ste 204
Houston, TX 77056-5923
Phone (888) 803-3370

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in TX, IL, NY, WA, CA, WI6 enrollments
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 6

Enrollment IDStateProvider typePAC IDDetails
I20120926000506 TX Practitioner - Physician Assistant 6800045485 Reassigns benefits to 1 organization
I20250624004027 IL Practitioner - Physician Assistant 6800045485 Reassigns benefits to 1 organization
I20250702002662 NY Practitioner - Physician Assistant 6800045485 Reassigns benefits to 1 organization
I20251016003491 WA Practitioner - Physician Assistant 6800045485 Reassigns benefits to 1 organization
I20251204004536 CA Practitioner - Physician Assistant 6800045485 Reassigns benefits to 1 organization
I20260129003295 WI Practitioner - Physician Assistant 6800045485 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
Other, 2010
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Circle Medical Care of CaliforniaGroup PAC ID 3870894579, 71 clinicians

Practice addresses (Care Compare)

333 1St St
Suite a
San Francisco, CA 94105-2661
Phone (888) 803-3370

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Physician Assistant

State licenses

LicenseStateTypeSpecialty
66983CAMDPharmacist
PA66983CAMDPhysician Assistant
875323WIMDPhysician Assistant

Practice roles

OrganizationSpecialtyStatusNew patients
Rediclinic Austin, LLC CurrentSince Apr 14, 2015 Accepting new patients
Circle Medical Care of California CurrentSince Sep 21, 2025 Accepting new patients

Locations

415 N Crescent Dr
Ste 320
Beverly Hills, CA 90210
Phone (415) 510-2755

333 1st St
Ste A
San Francisco, CA 94105
Phone (312) 724-7441

21660 W Field Pkwy
Deer Park, IL 60010
Phone (312) 620-1803

156 William St
Rm 303
New York, NY 10038
Phone (718) 866-4435

500 Canyon Ridge Dr
Austin, TX 78753
Phone (512) 836-9000

6900 Brodie Ln
Austin, TX 78745
Phone (512) 891-8906

170 E Whitestone Blvd
Cedar Park, TX 78613
Phone (512) 259-5755

5373 W Alabama St
Ste 204
Houston, TX 77056
Phone (281) 569-4289

9 Greenway Plz
Ste 2950
Houston, TX 77046
Phone (713) 335-1731

1400 N Coit Rd
Ste 302
McKinney, TX 75071
Phone (214) 504-3005

555 Andover Park W
Ste 200
Tukwila, WA 98188
Phone (229) 500-6056

790 N Milwaukee St
Ste 313
Milwaukee, WI 53202

Organizations & group practices 4

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": "1302220800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1773878400000",
    "number": "1689964819",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2621 RIDGEPOINT DR",
            "address_2": "STE 130",
            "city": "AUSTIN",
            "state": "TX",
            "postal_code": "787545232",
            "telephone_number": "512-583-9679",
            "fax_number": "512-334-2321"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2410 E RIVERSIDE DR",
            "address_2": "STE G-3",
            "city": "AUSTIN",
            "state": "TX",
            "postal_code": "787413083",
            "telephone_number": "512-744-6000",
            "fax_number": "512-448-3776"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "333 1st St Ste A",
            "address_purpose": "LOCATION",
            "city": "San Francisco",
            "state": "CA",
            "postal_code": "941052661",
            "country_code": "US",
            "telephone_number": "888-803-3370",
            "fax_number": "888-803-3331",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "156 William St Rm 303",
            "address_purpose": "LOCATION",
            "city": "New York",
            "state": "NY",
            "postal_code": "100385307",
            "country_code": "US",
            "telephone_number": "888-803-3370",
            "fax_number": "888-803-3331",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1400 N Coit Rd Ste 302",
            "address_purpose": "LOCATION",
            "city": "McKinney",
            "state": "TX",
            "postal_code": "750716656",
            "country_code": "US",
            "telephone_number": "888-803-3370",
            "fax_number": "888-803-3331",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "415 N Crescent Dr Ste 320",
            "address_purpose": "LOCATION",
            "city": "Beverly Hills",
            "state": "CA",
            "postal_code": "902106813",
            "country_code": "US",
            "telephone_number": "888-803-3370",
            "fax_number": "888-803-3331",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "790 N Milwaukee St Ste 313",
            "address_purpose": "LOCATION",
            "city": "Milwaukee",
            "state": "WI",
            "postal_code": "532024148",
            "country_code": "US",
            "telephone_number": "888-803-3370",
            "fax_number": "888-803-3331",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "21660 W Field Pkwy",
            "address_purpose": "LOCATION",
            "city": "Deer Park",
            "state": "IL",
            "postal_code": "600107265",
            "country_code": "US",
            "telephone_number": "888-803-3370",
            "fax_number": "888-803-3331",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "555 Andover Park W Ste 200",
            "address_purpose": "LOCATION",
            "city": "Tukwila",
            "state": "WA",
            "postal_code": "981883379",
            "country_code": "US",
            "telephone_number": "888-803-3370",
            "fax_number": "888-803-3331",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "5373 W Alabama St Ste 204",
            "address_purpose": "LOCATION",
            "city": "Houston",
            "state": "TX",
            "postal_code": "770565923",
            "country_code": "US",
            "telephone_number": "888-803-3370",
            "fax_number": "888-803-3331",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "RIVAS",
        "first_name": "ALONZO",
        "credential": "PA",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2011-04-08",
        "last_updated": "2026-03-19",
        "certification_date": "2026-03-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "IL",
            "license": "085008756",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "TX",
            "license": "PA07012",
            "primary": true
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "NY",
            "license": "027617",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "WA",
            "license": "PA61234695",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "CA",
            "license": "PA66983",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "WI",
            "license": "875323",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Austin, TX

Sources for this page

Verify at the official NPI Registry.