Ron K Feinberg, MSW, LICSW

Primary specialty

Clinical Social WorkerTaxonomy code 1041C0700X

License

LW00004561 Issued in WA

Practice address

8015 SE 28TH St
Suite 201
Mercer Island, WA 98040-2910

Phone

(206) 236-1294

Fax

(630) 604-9955

NPI assigned

Mar 16, 2007

Last updated

Jan 3, 2022By 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 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Opted out of Medicare

Yes, effective Apr 1, 2026 through Apr 1, 2028

Medicare enrollment (NPD)

Enrolled

State licenses

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.

• Mercer Island Therapy, PLLC

  dba Northwest Speech Therapy / Spotlight Social Skills

  • Clinical Social Worker
  • Mercer Island, WA
  • NPI 1003129461
  Authorized official Same address or phone
• The Northwest Pinnacle Group, Inc.

  • Clinical Social Worker
  • Mercer Island, WA
  • NPI 1538164983
  Authorized official Same address or phone

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

{
    "created_epoch": "1174003200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1641168000000",
    "number": "1861516825",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "8015 SE 28TH ST",
            "address_2": "STE 309",
            "city": "MERCER ISLAND",
            "state": "WA",
            "postal_code": "980402910",
            "telephone_number": "206-236-1294",
            "fax_number": "630-604-9955"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8015 SE 28TH ST",
            "address_2": "SUITE 201",
            "city": "MERCER ISLAND",
            "state": "WA",
            "postal_code": "980402910",
            "telephone_number": "206-236-1294",
            "fax_number": "630-604-9955"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "FEINBERG",
        "first_name": "RON",
        "middle_name": "K",
        "credential": "MSW, LICSW",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-03-16",
        "last_updated": "2022-01-03",
        "certification_date": "2022-01-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "WA",
            "license": "LW00004561",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Fan PLLC
• Peien Fan, M.D.
• Scott Edward Fannin, D.O.
• Liat Tamar Feinberg, LICSW
• Regina K Feinberg, MA, CCC
• Karen Sue Feldt, ARNP
• John Felice, ND
• Clara Alexandra Felker, DDS
• Hollyann Alyssa Feller, DMD
• Irma Manalansan Fernandez, PHARMACIST

• Clinical Social Worker in Mercer Island, WA
• Providers in Mercer Island, WA by specialty
• Clinical Social Worker in Washington

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 3, 2022; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Opt Out Affidavits.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.