NPIMap

Individual provider Active NPI

Ryan Phillip Pastoral Alonzo, MD

  • Surgery Physician
  • Katy, TX
National Provider Identifier
1871122101
Registry record updated Oct 6, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Surgery PhysicianTaxonomy code 208600000X
License
W1376 Issued in TX
Practice address
23920 Katy Fwy Ste 410
Katy, TX 77494-0881
Phone
(713) 772-1200
Fax
(713) 255-6315
NPI assigned
Apr 7, 2020
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Oct 6, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Surgery Physician 208600000X W1376 TX Primary

Addresses

Primary practice location

23920 Katy Fwy Ste 410
Katy, TX 77494-0881

Mailing address

13811 Murphy Rd
Stafford, TX 77477-4903
Phone (713) 772-1200

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in TX
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20251114002418 TX Practitioner - General Surgery 3779074018 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
General Surgery
Education
Texas a & M University System, HSC, College of Medicine, 2020
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Southwest Surgical Associates LLPGroup PAC ID 3072553734, 19 clinicians

Practice addresses (Care Compare)

23920 Katy Fwy
Suite 410
Katy, TX 77494-0881
Phone (713) 772-1200

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Colonoscopy1-10

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
W1376TXMDSurgery Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Swsa VBC PLLC Surgery CurrentSince Oct 12, 2025 Accepting new patients
Southwest Surgical Associates LLP CurrentSince Dec 1, 2025 Accepting new patients

Locations

23920 Katy Fwy
Ste 410
Katy, TX 77494
Phone (832) 437-1410

13811 Murphy Rd
Stafford, TX 77477
Phone (713) 255-6300

Interoperability endpoints

  • Direct secure messaging: ralonzo333318@directhoustonmethodist.org

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.

Hospital & facility affiliations 8

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": "1586217600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1759708800000",
    "number": "1871122101",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "13811 MURPHY RD",
            "city": "STAFFORD",
            "state": "TX",
            "postal_code": "774774903",
            "telephone_number": "713-772-1200",
            "fax_number": "713-255-6315"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "23920 KATY FWY STE 410",
            "city": "KATY",
            "state": "TX",
            "postal_code": "774940881",
            "telephone_number": "713-772-1200",
            "fax_number": "713-255-6315"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ALONZO",
        "first_name": "RYAN PHILLIP",
        "middle_name": "PASTORAL",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2020-04-07",
        "last_updated": "2025-10-06",
        "certification_date": "2025-10-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "TX",
            "license": "W1376",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Katy, TX

Sources for this page

Verify at the official NPI Registry.