William David Fritsch, DDS

Primary specialty

General Practice DentistryTaxonomy code 1223G0001X

License

11805 Issued in TX

Practice address

1121 Avenue E
Del Rio, TX 78840-3915

Phone

(830) 775-2443

Fax

(830) 775-2214

NPI assigned

Oct 5, 2006

Last updated

Aug 30, 2026By the provider in NPPES

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

State licenses

Practice roles

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

• Edson Martinez-Ruiz, DDS, PA

  • General Practice Dentistry
  • Del Rio, TX
  • NPI 1164803417
  NPD (past)

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

{
    "created_epoch": "1160006400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788048000000",
    "number": "1477649770",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1121 AVENUE E",
            "city": "DEL RIO",
            "state": "TX",
            "postal_code": "788403915",
            "telephone_number": "830-775-2443",
            "fax_number": "830-775-2214"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1121 AVENUE E",
            "city": "DEL RIO",
            "state": "TX",
            "postal_code": "788403915",
            "telephone_number": "830-775-2443",
            "fax_number": "830-775-2214"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "FRITSCH",
        "first_name": "WILLIAM",
        "middle_name": "DAVID",
        "name_prefix": "Dr.",
        "credential": "DDS",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-10-05",
        "last_updated": "2026-08-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1223G0001X",
            "taxonomy_group": "",
            "desc": "Dentist, General Practice",
            "state": "TX",
            "license": "11805",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "LICENCE",
            "identifier": "11805",
            "state": "TX"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• FMSC del Rio Operating Company LP (Retama Manor Del Rio)
• Melissa E Fondren, PCNS, MSN
• Hugh Michael Freitas, MSN, APRN, FNP-C
• Fresenius Medical Care San Antonio, LLC (Fresenius Kidney Care Val Verde)
• Fresenius Medical Care San Antonio, LLC (Fresenius Medical Care of del Rio)
• Frontera Pediatrics PA
• Frontline Medical Transports LLC
• Joma Guerrero Galang, P.T.
• Conrado G. Galindo III, M.D.
• Alejandra Garcia

• General Practice Dentistry in Del Rio, TX
• Providers in Del Rio, TX by specialty
• General Practice Dentistry in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 30, 2026; 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.