Theodore Sonneborn

Primary specialty

Clinical Social WorkerTaxonomy code 1041C0700X

License

SW142450 Issued in PA

Practice address

1700 Sansom St FL 11
Philadelphia, PA 19103-5245

Phone

(215) 563-7863

NPI assigned

Nov 3, 2020

Last updated

Aug 12, 2025By the provider in NPPES

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

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.

• Walnut Psychotherapy Center

  • Clinical Social Worker
  • Philadelphia, PA
  • NPI 1659749497
  NPD

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

{
    "created_epoch": "1604361600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1754956800000",
    "number": "1568063808",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1700 SANSOM ST FL 11",
            "city": "PHILADELPHIA",
            "state": "PA",
            "postal_code": "191035245",
            "telephone_number": "215-563-7863"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1700 SANSOM ST FL 11",
            "city": "PHILADELPHIA",
            "state": "PA",
            "postal_code": "191035245",
            "telephone_number": "215-563-7863"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "4455 NE Highway 20",
            "address_purpose": "LOCATION",
            "city": "Corvallis",
            "state": "OR",
            "postal_code": "973309695",
            "country_code": "US",
            "telephone_number": "541-758-5900",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SONNEBORN",
        "first_name": "THEODORE",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2020-11-03",
        "last_updated": "2025-08-12",
        "certification_date": "2025-08-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "PA",
            "license": "SW142450",
            "primary": true
        },
        {
            "code": "101Y00000X",
            "taxonomy_group": "",
            "desc": "Counselor",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Sujata Soni
• Sonia Anand-Nichols MD PC
• Sonias Family Home Health Care Agency
• William A Sonis, MD
• Rachel Mary Elizabeth Sonne, MSOT, OTR/L
• Elizabeth Marie Sonnenberg, M.D.
• Hannah Sonnier, MSW
• Anne Sonoga, DPM
• Sons and Daughter Home Care
• Ashley Sonson, LCSW

• Clinical Social Worker in Philadelphia, PA
• Providers in Philadelphia, PA by specialty
• Clinical Social Worker in Pennsylvania

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 12, 2025; 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.